ProtoMat 95s/II
(04/99)
Manual
English version
 Copyright 1999 LPKF Laser & Electronics AG
All rights reserved
LPKF Laser & Electronics AG
Osteriede 7
30827 Garbsen
Germany
Tel.:
+49 (0)5131 7095 0
Fax:
+49 (0)5131 7095 90
E-mail:
lpkf@lpkf.de
Internet:
http://www.lpkf.de
2
ProtoMat 95s/II
Manual
User qualifications
The user must have received training in the operation of the LPKF ProtoMat 95s/II. It is also absolutely
essential that the user has read this manual before operating the LPKF ProtoMat 95s/II and is familiar
with the working procedures and relevant safety instructions.
The information contained in this document may be modified without prior notification. No part of this
document may be reproduced or transmitted for any purpose or in any form by any means, electronic
or mechanical, by photocopy, by recording or by information storage and information retrieval systems
without the express written permission of LPKF.
We have taken great trouble to ensure the accuracy and completeness of the information in this
document. However, LPKF accepts no liability for the use of the document, including breach of
copyright or other infringement against third parties which may arise from this.
LPKF ProtoMat is a registered trademark of LPKF Laser & Electronics AG.
MS-DOS and Windows are registered trademarks of Microsoft Corporation.
HP-GL is registered trademark of the Hewlett Packard Corporation.
All other trademarks registered for the corresponding owners.
 1999 LPKF Laser & Electronics AG. All rights reserved.
Part number
101132
ProtoMat 95s/II
Manual
3
Table of contents
1.1 Ratings for the LPKF ProtoMat 95s/II............................................................................ 5
2 General information
6
2.1 Scope of supply............................................................................................................ 6
2.2 Optional accessories .................................................................................................... 6
2.3 Troubleshooting............................................................................................................ 6
2.4 Safety regulations......................................................................................................... 7
2.5 Air-borne sound............................................................................................................. 7
2.6 Installation ..................................................................................................................... 8
2.7 Initialization.................................................................................................................... 8
2.8 Machine orientation .................................................................................................... 10
2.9 LPKF ProtoMat 95s/II displays and connections........................................................ 11
2.10 The hood and pneumatic port ................................................................................... 14
2.11 What is LPKF BoardMaster used for?...................................................................... 16
3 Setup
17
3.1 Before switching on ..................................................................................................... 17
3.2 Switch-on sequence ................................................................................................... 17
3.3 Preparing the tools ...................................................................................................... 19
3.3.1 The spacer ring press....................................................................................... 19
3.3.2 Functions in BoardMaster................................................................................. 20
3.3.3 Preparing the tool magazine............................................................................. 22
3.4 After switching on ........................................................................................................ 23
3.5 Operating indicator on the LPKF ProtoMat 95s/II........................................................ 23
3.6 Functional test using LPKF BoardMaster................................................................... 24
3.7 HOME position and registration hole system ............................................................. 25
3.8 Checking and correcting the HOME position ............................................................. 26
3.9 Programming the HOME position in
LPKF BoardMaster ........................................ 31
3.10 Making a new registration hole system .................................................................... 32
4 Computer-controlled functions
34
4.1 Connection to a PC ................................................................................................... 34
4.2 LPKF ProtoMat 95s/II commands .............................................................................. 35
4.3 Command structure.................................................................................................... 35
4.3.1 HP-GL standard commands ............................................................................. 35
4.3.2 Special commands ........................................................................................... 37
4.3.3 Special command for the high-frequency spindle............................................. 39
4.3.4 Direct commands.............................................................................................. 39
4.4 Reprogramming the machine data.............................................................................. 40
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ProtoMat 95s/II
Manual
5 Tools, material and accessories
41
5.1 Tools ........................................................................................................................... 41
5.2 Materials used for machining....................................................................................... 42
6 Stages in milling and drilling
43
6.1 Securing the PCB on the machine bed ....................................................................... 43
6.2 The mechanical working depth limiter ........................................................................ 44
6.3 Functional elements on the plotter head .................................................................... 45
6.4 Drilling......................................................................................................................... 47
6.5 Isolation milling ........................................................................................................... 47
6.6 Contour milling in circuit board material ..................................................................... 48
6.7 Milling wide isolation channels and rubouts................................................................ 49
6.8 Front plate engraving.................................................................................................. 49
6.9 Milling solder-stop sheets ............................................................................................ 49
6.10 Milling layout films...................................................................................................... 50
6.10.1 Staining milled films ........................................................................................ 50
6.10.2 Removing the coating .................................................................................... 51
6.11 Tool libraries in BoardMaster..................................................................................... 52
6.12 Board material ......................................................................................................... 53
6.13 Cleaning the PCB ...................................................................................................... 54
6.14 Tutorial on creating a printed circuit board ................................................................ 55
6.15 Practical tips .............................................................................................................. 57
7 Appendix
59
7.1 Maintenance ................................................................................................................ 59
7.1.1 Working depth limiter ........................................................................................ 59
7.2 SerialPort 1 serial connection ...................................................................................... 60
7.3 SerialPort2 serial connection ....................................................................................... 60
7.4 Connecting the stepping motors................................................................................. 61
7.5 Connecting the plotter head........................................................................................ 61
7.6 Setting the tool change positions................................................................................ 61
7.7 EPROMs.................................................................................................................... 65
7.8 ProtoMat 95s/II and AutoContac................................................................................ 66
7.9 Switching the device voltage,
electrical fuses.......................................................... 67
7.10 Removing the electronics unit .................................................................................. 68
7.11 Table of available tools .............................................................................................. 71
7.12 Replacement parts for the ProtoMat 95s/II............................................................... 72
7.13 Concluding remarks................................................................................................... 73
8 Index
74
8.1 Declaration of conformity for the LPKF ProtoMat 95s/II .............................................. 77
8.2 Konformitätserklärung für LPKF ProtoMat 95s/II....................................................... 78
ProtoMat 95s/II
1
Manual
5
Introduction
The LPKF ProtoMat 95s/II circuit board plotter is a system for creating circuit board
prototypes and engraving films as well as for engraving aluminium or plastic. Each tool
change required is made automatically. The LPKF ProtoMat 95s/II circuit board plotter is
expressly not designed for machining wood.
Unlike other machines in the LPKF ProtoMat family, the LPKF ProtoMat 95s/II may only be
operated under the hood supplied for safety reasons. This is to be kept shut whenever the
machine is running.
It is essential that you familiarize yourself with the functions of the LPKF
BoardMaster driver program before using the plotter. You will find a description of the driver
program's functionality in the manual for the LPKF BoardMaster. The LPKF ProtoMat 95s/II is
controlled through a PC.
It is absolutely vital that you read the instructions given in this manual before putting the
machine into operation, otherwise you will invalidate any warranty claims. For machines
exported to other countries of the European Community the guarantee conditions of the
corresponding country apply.
1.1 Ratings for the LPKF ProtoMat 95s/II
Voltage
200-240 V (or 100-120V)
Power input
260 VA
High-frequency spindle speed 10,000 - 60,000 rpm
Weight
approximately 50 kg
Drilling performance
120 strokes/min
Resolution (smallest increment)
0.005 mm
Operating conditions:
Humidity
60% max.
Temperature
15-25 C
0
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ProtoMat 95s/II
Manual
2 General information
2.1 Scope of supply
1.
One LPKF ProtoMat 95s/II machine unit with integrated electronic circuitry
2.
One null modem cable (LPKF ProtoMat 95s/II control unit computer), 9/25-pin AT
adaptor
3.
One set of accessories (adhesive tape, various Allen keys, 5 alignment pins,
tweezers, brush, 7 mm box spanner, two red registration hole strips, syringe containing
oil)
4.
One mains cable
5.
Spacer ring press
6.
Pre-assembled hood for the LPKF ProtoMat 95s/II
7.
This manual
8.
2,95 mm registration hole drill (only for registration drillings)
2.2 Optional accessories
The following accessories are available for the LPKF ProtoMat 95s/II.
1.
Vacuum system with fine mesh filter.
The fine mesh filter is particularly essential when handling materials containing glass
fibre, such as FR4 board material.
2.
Compressor for generating compressed air
3.
LPKF AutoSwitch.
Automatic switch for the vacuum system. This option allows the vacuum system to be
switched on and off by the plotter spindle.
4.
LPKF AutoContac
Integrated through-hole plating using a dispenser and a special conductive paste
capable of being soldered.
2.3 Troubleshooting
The LPKF ProtoMat 95s/II circuit board plotter incorporates high-quality state-of-the-art
technology resulting in a machine capable of delivering trouble-free performance. However,
should any malfunction should present itself, please first check that you have carried out all
the instructions as specified in this manual. The cause of the malfunction may be something
minor. If the instructions given here do not offer a solution to the particular malfunction,
please contact your local dealer or LPKF Laser & Electronics AG, D-30827 Garbsen,
Germany directly who will be pleased to provide further information and put you in touch with
the service outlet that can best deal with your problem.
ProtoMat 95s/II
Manual
7
2.4 Safety regulations
The user must have read this manual, paying particular attention
to the safety instructions printed in bold, to ensure safe working
with this system.
• It is a general requirement for your safety that you operate the LPKF ProtoMat 95s/II
circuit board plotter in accordance with the regulations. This entails milling and
drilling permitted materials only.
• Under no circumstances may the limit switches on the hood be overridden. It must
also be ensured that no modifications have been made to the BoardMaster
program.
• Never mill or drill with the AutoContac adaptor fitted. There is a risk of collision
during automatic tool change.
• Always close the hood before starting up. Caution - the hood flap is not damped.
• Never reach into the machine while it is running.
• Caution - the machine changes the traverse speed automatically during the
process.
• Never operate the control PC simultaneously with work on the machine.
• Operators with long hair must wear a hair net.
• If you modify the equipment yourself, the safety of the equipment can no longer be
guaranteed and no guarantee claims can be accepted.
• Please take note that some materials may produce carcinogenic dust or hazardous
gases. Ask your supplier of the materials.
• Always work with the vacuum system.
• When using chemicals please take note of the safety notes on the containers or
separate safety sheets delivered with them.
• Keep the workplace tidy.
•
Drawings marked with a “hand” symbol indicate actions which carry an
increased risk to fingers and hands. Caution - risk of crushing.
2.5 Air-borne sound
A continuous sound pressure level of 68-70 dBA is generated at the workplace.
This measurement is based on the hood being open but without the vacuum system
operating.
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ProtoMat 95s/II
Manual
2.6 Installation
Care must be taken when unpacking the LPKF ProtoMat 95s/II.
1.
First loosen the securing bolts.
(See securing device 1 in the drawing on the next page)
M5 x 25, 4.5 x 60 bolts
2.
Now loosen the transport securing devices.
The transport securing devices are located:
To secure the x-axis (securing device 2) at the corners on each side of the machine's base plate
M4x10 bots
To secure the y-axis (securing device 3) immediately to the left of the head
M4x40 bolts
To secure the z-axis (securing device 4) on the plotter head
clamping wedge
To secure the tool magazine
(securing device 5) on the base plate
expanding wedge
3.
The hood must be set up so that the flap opens to the front.
4.
The circuit board plotter must be set up so that the connection cables to the electronics
unit are not restricted in any way and all the connections point towards the rear.
5.
Place the circuit board plotter against the rear wall of the hood.
6.
Connect the LPKF ProtoMat 95s/II by the null modem cable to the
COM1 or COM2 port on the computer.
7.
Connect the LPKF ProtoMat 95s/II control unit to the power supply.
8.
Connect the 6 bar compressed air connections from the compressed air distributor to
the circuit board plotter, spacer ring press and DispoMat (optional).
9.
Fit the vacuum system onto the adaptor
(fits pipe no. 111124 on a Nilfisk industrial vacuum system).
Important: The machine must be placed on a flat and firm base in order to work correctly
and without malfunctions.
2.7 Initialization
The following initialization procedures have been carried out on the ProtoMat 95s/II by LPKF
at the factory so that the positions of the plotter head and auxiliary clamp have been defined
and preset. See the "New functions in BoardMaster" section.
1.
Plotter head over the transfer station (exchange position)
2.
Auxiliary clamp over the transfer station
3.
Auxiliary clamp over the first tool in the tool magazine
4.
Auxiliary clamp over the last tool in the tool magazine
ProtoMat 95s/II
Manual
5
4
1
2
3
Transport securing devices on the LPKF ProtoMat 95s/II
Description of the transport securing devices
1.
Securing device 1
To secure the machine to the transportation base
M5 x 25, 4.5 x 60 bolts
2.
Securing device 2
To secure the x-axis
M4 x 10 bolts
3.
Securing device 3
To secure the y-axis
M4 x 40 screw
4.
Securing device 4
To secure the plotter head
Clamping wedge
5.
Securing device 5
To secure the tool magazine
Expanding wedge
Keep all transport securing devices and reattach them accordingly if the machine is to be
shipped again.
The packaging should also be kept and used when the machine is returned for servicing.
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ProtoMat 95s/II
Manual
2.8 Machine orientation
1
+x
6
2
3
4
.......................................
7b
+y
5
7
7a
LPKF ProtoMat 95s/II: the x-axis has the longer traverse path
Caution
Do no put fingers or any items into the movement range.
Description of the main machine positions:
1.
PAUSE position. The plotter head travels to this point to load or turn the material to be
machined.
2.
HOME position. This is located on the machine's axis of symmetry (registration hole
system) and acts as the reference position for LPKF BoardMaster.
3.
Registration hole slide with hole for alignment pin.
4.
Reference pin for the front registration hole strip. The front registration hole slide butts
against the stop.
5.
Transfer station. The tool is automatically transferred at this position.
6.
Auxiliary clamp (picks up/sets down the tools)
7.
Tool magazine (30 tool capacity)
7a.
7b.
Tool position 1
Tool position 30
ProtoMat 95s/II
Manual
11
2.9 LPKF ProtoMat 95s/II displays and connections
5
7
6
4
8
3
POWER
LPKF ProtoMat 95s/II
1
2
Front view of the LPKF ProtoMat 95s/II
Description of the front view:
1.
Operating indicator for the integrated SMCU machine controller
2.
Vacuum connection
3.
Pneumatic system unit
4.
Motor for the longitudinal axis (x-axis)
5.
High-frequency spindle with cylinder
6.
Active auxiliary clamp
7.
Working depth limiter
8.
Tool magazine (30 tool capacity)
ProtoMat 95s/II
Manual
12
12
11
13
14
15
16
12
10
9
17
IO
2
1
3
4
5
6
7
Rear view of the LPKF ProtoMat 95s/II
Description of the rear panel:
1.
Pneumatic system unit
2.
2nd (9-pin) serial port for extensions
3.
Port for connecting pneumatic system unit
4.
1st (25-pin) serial port for connection to PC
5.
X-axis motor connection
6.
Y-axis motor connection
7.
Plotter head connection
8.
On/Off switch, power cord connector and fuses
9.
Longitudinal axis (x-axis) motor
10.
Planned new connection
11.
Transverse axis (y-axis) motor
12.
High-frequency spindle with cylinder
13.
Pneumatic block
14.
Extraction
15.
Active auxiliary clamp
16.
Working depth limiter
17.
High-frequency spindle connection
18.
Tool magazine (30 tool capacity)
8
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ProtoMat 95s/II
Manual
1
2
7
3
4
5
8
6
Side view of the LPKF ProtoMat 95s/II
1.
Plotter head
2.
Hood limit switch connection
3.
6 bar port for connecting the hood compressed air distributor
4.
Port for connecting the pneumatic system unit
5.
Pneumatic system unit
6.
Vacuum connection
7.
X-axis motor
8.
Compressed air inlet (6 mm) from the DispoMat (LPKF AutoContac, optional)
13
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ProtoMat 95s/II
Manual
2.10 The hood and pneumatic port
The LPKF ProtoMat 95s/II is normally supplied with the hood pre-assembled. More detailed
information on the hood can be obtained from the relevant assembly instructions.
Caution
Close the flap by the handle only as there is a risk of fingers being crushed at
the sides of the flap.
Secure the flap when open in the catches provided for this purpose.
Fastening point for the
water trap with
pressure reducer
LPKF ProtoMat 95s/II dust and safety hood
Stop catches
ProtoMat 95s/II
Manual
15
3
6
1
2
4
5
Water trap with pressure reducer
1.
12 bar (max.) compressed air inlet from the compressor
2.
6 bar compressed air outlet to the compressed air distributor
3.
Setting adjuster for 6 bar connection
4.
Pressure gauge
5.
Drain valve
6.
Fixing bracket
4
1
2
3
Compressed air distributor
1.
Compressed air inlet from the pressure reducer
2.
Compressed air outlet to the DispoMat (LPKF AutoContac, optional)
3.
Compressed air outlet to the spacer ring press
4.
Compressed air outlet to the circuit board plotter
The compressed air distributor is fitted at the factory on the left-hand side of the safety hood.
16
Manual
ProtoMat 95s/II
2.11 What is LPKF BoardMaster used for?
The data required to drive the plotters is generated by postprocessing with LPKF CircuitCAM
and is stored in an LPKF binary file (LMD format).
BoardMaster now reads these files, decodes the plotter commands and modifies them for the
particular machine being driven.
This is necessary as although different machines may perform similar operations, they
nevertheless use different command sets.
The LPKF ProtoMat 95s/II circuit board plotter is HP-GL-compatible, ie the driver outputs in
HP-GL format plus some special commands.
Modifications such as enlargement, rotation and duplication etc can be made in LPKF
BoardMaster.
All LPKF circuit board plotters are controlled through an asynchronous interface (RS232C).
This is set for the LPKF ProtoMat 95s/II in the Windows operating system at
9600 baud, 1 stop bit, 8 data bits, no parity bit, hardware handshake and FIFO off.
ProtoMat 95s/II
Manual
17
3 Setup
3.1
Before switching on
Caution
You must ensure that the voltage set on the machine corresponds with the
mains line voltage before switching on. If not, see the section headed
Setting the device voltage, electrical fuses.
Remove all objects from the plotter and its traverse range before switching on. Pilot pins
must not be projecting from the board material.
Caution
Carefully close the hood.
Never reach into the machine while it is running.
Never move the plotter head manually. Doing so could damage the
electronics.
3.2 Switch-on sequence
It is absolutely vital that you follow the switch-on sequence to guarantee trouble-free
use of the ProtoMat 95s/II.
The circuit board plotter must be switched on and the initialization run completed before
BoardMaster is started. Otherwise it will not be possible to execute the communication
operations that occur as soon as BoardMaster is started.
1.
Computer
2.
LPKF ProtoMat 95s/II
3.
Start the BoardMaster program
The following screen will appear when the program is started:
The Tool Status dialogue box
You must determine where any tool is located when the machine is switched on.
Next the vacant tool position in the tool magazine must be specified.
Comment:
Position 1 = tool 1 is positioned extreme right,
Position 30 = tool 30 is therefore positioned extreme left in the tool magazine.
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ProtoMat 95s/II
Manual
If, for whatever reason, it should be necessary to switch the machine off and back on, you
must switch briefly to the BoardMaster Machine Settings... dialogue box and quit this with
OK. This will transmit all necessary initialization parameters, such as speed ranges, wait
times, positions and so on to the machine.
BoardMaster warning: Hood is open
No compressed air feed.
BoardMaster displays the above notice if the hood is not closed, or there is no compressed
air feed to the LPKF ProtoMat 95s/II. These faults must be rectified before work can
continue.
You must first run in the bearings on the high-frequency spindle when starting up the
machine if it has been shut down for a prolonged period or if the machine has just been
shipped.
Thereafter the control system automatically specifies that the spindle be warmed up (at
20,000 rpm) for about 3 to 5 minutes whenever the machine is switched on. The length of the
warm-up period is determined by the length of the shutdown period. It is not possible to set a
speed above 20,000 rpm during the warm-up period. The machine will automatically switch to
the higher set speed once the warm-up period is over. BoardMaster controls these
procedures automatically.
Information box for warm-up period
ProtoMat 95s/II
Manual
19
3.3 Preparing the tools
3.3.1 The spacer ring press
All tools must be fitted with spacer rings to ensure the precise pick up and set down of tools.
2
1
5
4
3
The spacer ring press used to force the spacer rings onto the tools comprises the following
parts:
1. Magazine for spacer rings
2. 6 bar compressed air connection
3. Cover cap with pneumatic switch
4. Pressing tool with drill inserted
5. Spacer ring ready for pressing
The spacer rings are fed into the spacer ring press magazine (1) and the tool (4) is pushed
into the pressing tool with the cutting edge towards the spacer ring (5). The cover cap (3)
must now be closed to the stop so that pressing can take place. The prepared tool may now
be removed.
Caution:
The working depth of the tool concerned will be too deep if the tool has not
been pressed into the ring as far as the stop.
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ProtoMat 95s/II
Manual
3.3.2 Functions in BoardMaster
3.3.2.1 The Tool Magazine I/O Status dialogue box
Click on CONFIGURATION, STATUS in the BoardMaster menu bar to open the
TOOL BOX I/O STATUS dialogue box.
The Tool Box I/O Status dialogue box
The TOOL BOX I/O STATUS dialogue box provides information on the signals set and the data
lines connected.
IN is used to check the additional lines connected to the automatic tool change,
OUT indicates which lines have been activated by BoardMaster. The
REFRESH button can be used to check whether any status changes made have been
detected and accepted by the system.
3.3.2.2 The Tool Box dialogue box
You can call up the Tool Magazine dialogue box by clicking on
CONFIGURATION, TOOL BOX... Here you can perform a manual check on the positions preset
by LPKF for the automatic tool change. The operator does not normally need to make any
changes here as doing so would have no effect on milling and drilling. The numerical values
entered here indicate a sample configuration.
The Tool Box dialogue box
ProtoMat 95s/II
Manual
21
MAIN CLAMP AT EXCHANGE POSITION defines the position of the plotter head over the transfer
station,
AUXILIARY CLAMP AT EXCHANGE POSITION specifies the position of the auxiliary gripper over the
transfer station. Use
AUXILIARY CLAMP AT FIRST TOOL POSITION to specify the set position of the auxiliary gripper
over the first tool in the tool magazine,
AUXILIARY CLAMP AT LAST TOOL POSITION indicates the position defined for the gripper over the
last tool.
The READ button can be used to change the current position of the plotter head; clicking on
MOVE then verifies this change.
These positions, and also HOME and SIZE, are preset in the factory
( file BM-95PS.INI).
Caution
Note that it is possible to overwrite the current positions and thus there
is a hazard to the operator and damage to the machine is possible.
DELAY TIME indicates the wait time between the various commands.
HEAD SHIFT IN X-DIRECTION specifies the plotter head traverse path in the x-direction during
the tool change.
The status of the three combo boxes:
MAIN CLAMP (of the plotter head), EXCHANGE CLAMP and TOOL BOX must correspond to the
status when the Tool box - dialogue was opened, otherwise it will not be possible to quit the
TOOL BOX - DIALOGUE.
Comment: The circuit board plotter must be switched on and connected before you can
quit the Tool dialogue box.
3.3.2.3 The Tool Position dialogue box
Right-clicking on the Tool combo box opens the TOOL POSITION dialogue box. Left-clicking
selects the tool for manual changing. Various tools have already been assigned in the
screen-shot. Unassigned positions are marked as < unknown>.
The Tool Positions dialogue box with defined tools
The LOAD LIST and SAVE LIST buttons are used to load an existing tool list and to save a
newly created or modified tool list.
The PAGE UP and PAGE DN buttons allow you to scroll through the loaded tool list (30 tools) a
page at a time.
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ProtoMat 95s/II
Manual
The STOP AFTER TOOL CHANGE check box is activated if, for example, a tool's milling depth
has to be adjusted. The buttons can be used to proceed manually in BoardMaster once the
tool has been changed.
The
button is used to proceed with the current job.
The tool assignment is made here for various machining phases within a project from
LPKF CircuitCAM (LMD file), for instance. It is essential that you check whether the tool
magazine is equipped with the correct tool as assigned above.
The TOOL POSITIONS dialogue box can only be quitted if
TOOL BOX DOWN has previously been clicked.
3.3.3 Preparing the tool magazine
The tools fitted with spacer rings are placed into the tool magazine in the following steps (see
also the "Tools and materials" section).
Only tools which are 1/8 inch in diameter and 36 mm or 38 mm in length may be used.
1.
Switch on the circuit board plotter. (The x and y-limit switches are activated)
2.
Close the hood.
3.
Start up the BoardMaster program.
4.
Use BoardMaster to carry out the following procedures:
•
Open the TOOL POSITIONS dialogue box by right-clicking on the arrow in the
Tool combo box.
•
Assign the required tools to the tool positions.
Caution
The hood must always be closed whenever there is any movement during
the tool change.
The tool magazine is moved by compressed air. This increases the risk of
fingers being crushed.
4.
Click on TOOL BOX UP to raise the tool magazine.
Any tools held in the plotter head collet are automatically set down before the tool
magazine is raised.
5.
Open the hood once all movement has ceased.
ProtoMat 95s/II
6.
Manual
23
Only those tools which have been previously assigned may be inserted in the tool
magazine.
The tools must be inserted as far as the stop and securely held between the springs.
Note: Tool position 1 is situated at the front to the right.
Caution
Ensure that the correct tool is inserted in the correct position.
The hood must be closed once the tools have been inserted.
7.
Once the hood has been closed, click on TOOL BOX DOWN in the TOOL POSITIONS
dialogue box in BoardMaster to lower the tool box.
8.
Continue at point 3.3 if you have not assigned and inserted all tools in a single step.
First save your tool list.
3.4 After switching on
The machine moves to the x and y limit switches and remains in the coordinate zero-point
position. It now waits for commands from BoardMaster. If the equipment does not move
when it has been switched on, check the following:
1.
Is the POWER LED lit (only lights up after successful initialization)?
2.
Are all cables correctly inserted?
3.
You may need to check the power supply fuses.
3.5 Operating indicator on the LPKF ProtoMat 95s/II
POWER (green):
Control unit operating indicator. This only comes on when the system
has been initialized (limit switch reached).
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ProtoMat 95s/II
Manual
3.6 Functional test using LPKF BoardMaster
Caution
Make sure that no other persons are working on the machine while the first
functional test is taking place.
First check the configuration of the serial port:
9600 baud , 8 data bits, 1 stop bit, no parity bit, hardware handshake and FIFO off.
Also check that the correct interface has been selected in BoardMaster under
CONFIGURATION, CONNECT... .
Consult the BoardMaster manual if you require assistance.
The port in the field marked (4) in the screen-shot below is visible. This display indicates the
port the control data is being sent to. A NULL here indicates that the data is not being sent to
any port.
(1)
(2)
(4)
(3)
The remainder of the procedure is carried out using BoardMaster:
1.
Move the head manually using the cursor keys on the BoardMaster toolbar (3).
2.
Turn on the motor (1) (The motor runs at low speed during the
warm-up phase)
3.
Wait for the warm-up phase to complete.
4.
Lower/raise the head (2).
5.
Switch off the motor (1).
6.
Check the interface configuration, the connection cable and the PC interface if the
machine does not move.
Please note: The motor cannot be switched on when the machine is in the tool change
position.
ProtoMat 95s/II
Manual
25
3.7 HOME position and registration hole system
The HOME position must be on the machine's axis of symmetry (registration hole system) to
ensure correct alignment of a double-sided board.
Double-sided boards are rotated about this axis of symmetry.
Inaccuracies in the HOME position result in misalignment when double-sided boards are
rotated during the machining process.
The HOME position is contained on the configuration diskette supplied as standard. With the
BoardMaster program and configuration diskette correctly installed, the HOME position
corresponds to the setting for the x/y coordinates as measured during the acceptance test.
Please note: The registration hole system can only be guaranteed to be parallel for the
current position of the registration hole strips.
The front registration hole slide must be pushed against the pin in the
reference groove (reference point).
An additional hole must be drilled in the rear registration hole strip for
each format if board material of different sizes is used.
To do this, move from the HOME position towards the rear registration
hole strip.
Now move the rear registration hole strip to the required position.
Once the necessary tool change has been made automatically (2.95 mm
drill with a different colour spacer ring must be positioned in the tool
magazine by now), another hole is drilled in the slide.
The position of the slide for the various holes should be recorded or
marked on the circuit board plotter.
This guarantees parallelism for different formats.
You will need to perform a test run on the machine to check the coordinates
of the HOME position on new machines and after transporting the system.
The individual steps are described in the next section, "Checking and correcting the HOME
position".
No further action is required if the preset coordinates are correct. If this is not the case, the
corrected coordinates will have to be entered in BoardMaster.
See the section entitled "Programming the HOME position in BoardMaster".
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ProtoMat 95s/II
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3.8 Checking and correcting the HOME position
The test file NULL-PKT.LMD is supplied with the installation program to simplify the procedure
for checking the HOME position.
This program drills a hole on one side of the board and then rotates the board before milling
a circle in the same place. This allows you to perform a visual check on the position of the
HOME point on both axes.
Carry out the following steps:
1.
Make registration holes in double-sided board material.
2.
Secure the material and drilling base (2 mm) onto the base plate using the registration
hole pins. (see also the section entitled "Securing the board onto the machine bed").
3.
Start up BoardMaster and select LMD OR LPR from the FILE, IMPORT menu.
4.
Now select the file NULL-PKT.LMD and import it by clicking OK.
5.
Click on
to zoom the display and enclose the detail by clicking and dragging with
the left mouse button.
ProtoMat 95s/II
6.
Manual
27
Right-click on the project.
The PLACEMENT dialogue box opens. Specify the position in the
ORIGIN POINT box as x=0, y=0 and confirm by clicking on
.
7.
Select the DRILLINGPLATED process from the production phase list box.
8.
Click on
mouse button.
9.
Now enable the selected hole for machining by clicking
and enclose the first hole by clicking and dragging with the left
and
. The hole is drilled in the board once the tool has been changed for the
specified drill.
10.
Next move to the PAUSE position and rotate the board about the x-axis.
11.
Now select the MILLINGTOP process from the production phase list box.
12.
Click on
once again and enclose the milling track corresponding to the first
hole by clicking and dragging with the left mouse button.
13.
Now enable the milling track for machining by clicking
and
.
The software again changes automatically the specified tool and mills a circular track.
Check the settings, including the milling pass width and the milling depth setting before
you start machining.
28
Manual
14.
ProtoMat 95s/II
Perform a visual check to ensure that the milled channel passes precisely around the
centre point of the hole.
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29
30
ProtoMat 95s/II
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15.
The HOME position must be corrected if the milled line does not pass exactly through
the centre point.
This can be done directly by amending the HOME position in the MACHINE SETTINGS
dialogue box (see the section entitled "Programming the HOME position in LPKF
BoardMaster").
The correct value can be calculated using the formula given above.
The Y coordinates must always be added to the correction value.
16.
After making a correction, the process should be repeated as a check. It is advisable
that you use the second hole and milling track in the test program if the same board is
to be used to perform the check.
17.
Note the coordinates of the new HOME position.
ProtoMat 95s/II
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31
3.9 Programming the HOME position in
LPKF BoardMaster
The HOME position for the LPKF ProtoMat 95s/II must be programmed to lie exactly on the
axis of symmetry (the registration hole system with the red plastic slides) as described for
machining double-sided boards. You must enter a correction if a check shows that the HOME
position, as described above, does not lie on the axis of symmetry.
To do this, proceed as follows:
1.
Start up BoardMaster.
2.
Select CONFIGURATION, SETTINGS from the menu bar.
3.
Click on UNLOCK so that you can make entries in this dialogue box.
4.
If necessary, correct the HOME position coordinates by increased or decreasing the
value by the value previously measured.
5.
The new values will only be saved once the MACHINE SETTINGS... dialogue box is
closed and you quit BoardMaster.
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3.10 Making a new registration hole system
The registration holes in the red registration hole strip become larger over time due to use
and will no longer be as precise as before.
New holes must be drilled in the strips if this is the case.
The registration hole strips must be replaced when eventuallly there are too many holes in
them.
1. Axis of symmetry
2. Reference pin, the stop for the
front registration hole strip (5)
3. Front alignment pin
4. HOME position, at least 10 mm
from the front alignment pin
8
5. Registration hole stripe
6. Registration hole groove
7. Tool magazine
8. Transfer station.
7
1 2
3 4
5
6
Position 1
Position 30
Front strip of the registration hole system
A new registration hole system is created as follows:
1.
First press the two registration hole strips into the machine groove, with the front
registration hole strip pushed against the reference pin at the front of the groove.
The distance between the two registration hole strips should be approximately the size
of the board material in the x-axis.
2.
A special drill for drilling the registration hole system is provided in the set of
accessories. This drill is also contained in the BoardMaster tool library. This drill has
the spacer ring pressed onto the tool such that the distance to the plotter table is
approximately 0.5 mm.
Caution
This tool is intended for drilling the registration hole system only. Using this
tool to drill boards may cause the tool to be broken or the plotter to be
damaged
4.
Select the tool in BoardMaster: "Spiral Drill Ref 2.95 mm"
5.
To increase the drill stroke, adjust the work depth limiter to the top using the knurled
screw, in order to increase the drill stroke.
6.
Use GO TO, HOME
from the BoardMaster menu to move the plotter head to the HOME position and then
use the traverse buttons to move the head to approximately the centre of the front
registration hole strip.
ProtoMat 95s/II
Manual
33
and
(raise/lower head) to drill a hole
Switch on the motor by clicking
approximately 4 mm deep.
The head may need to be lowered several times to reach the drilling depth.
Do not move the position of the plotter head in the y-axis again.
7.
Use the traverse buttons in BoardMaster to move the plotter head approximately 25
mm in the positive X direction and define this position as the new HOME position:
Open the MACHINE SETTINGS... dialogue box in BoardMaster via CONFIGURATION,
SETTINGS, select UNLOCK and click on the SET HOME button. (see also the section
entitled Programming the HOME position in LPKF BoardMaster)
8.
Move in the x-axis a known amount to the second, rear registration hole strip and drill a
hole about 4 mm deep there too. It is imperative that you do not move in the Y
direction. Select a distance suitable for working with standard board material. For
example, an A4 board is 297 mm, so a registration hole 5 mm from the edge of board
gives a distance between the holes of 287 mm.
Simplified method:
Enter the value 287 in the STEP SIZE box in BoardMaster and then press the traverse
button.
The plotter head moves to the new position in one 287 mm step.
9.
Now remove the drilling tool by selecting a different tool in BoardMaster.
10.
Move the plotter head to the side. Insert two alignment pins in the holes now made in
the registration hole strip.
Please check that the pins are positioned securely as any play has a detrimental effect
on alignment accuracy.
11.
Mark any old holes with a felt-tip pen so that they cannot be mistaken for the new
holes.
The drilling base should be drilled to a larger diameter, such as 5-6 mm, to allow for
inaccuracies in the registration holes.
12.
Position the previously drilled base material and drilling base over the alignment pins.
The format of the board material should be selected so that the registration hole strip
does not need to be moved more than 10 mm. Moving the registration hole strip more
than 10 mm reduces the accuracy of the registration hole system.
13.
Now secure the board material in this position on all four sides with adhesive tape
(we recommend Tesakrepp 5250).
Caution
Please note that very sharp tools are involved and that they may become hot.
Always work with the vacuum system switched on to avoid injury from swarf.
Tip:
You should select a distance between the registration holes which allows you
to work with standard board material.
A DIN A4 size board has a side length of 297 mm so holes which are
5 mm from the edge give a distance between the holes of 287 mm.
34
4
ProtoMat 95s/II
Manual
Computer-controlled functions
4.1 Connection to a PC
The LPKF ProtoMat 95s/II has two serial ports. The first (25-pin) is used for connection to the
controlling computer (PC).
The second port (9-pin) is reserved for future applications.
The 25-pin port on the LPKF ProtoMat 95s/II control unit is connected to one of the
computer's serial ports using the null modem cable supplied.
Das RS232 cable (null modem) for the LPKF ProtoMat 95s/II circuit board plotter is wired as
follows:
25-pin socket
25-pin socket
PC (COMx)
Circuit board plotter
(SerialPort1)
2
TXD
3
3
RXD
2
4
5
5
4
7
GND
7
6+8
20
20
6+8
Shield connection at bozh sides!
The following parameters must be observed:
Baud rate
Parity
Data bits
Stop bit
Protocol
FiFo buffer
enabled
9600 (default setting, others upon request)
None
8
1
Hardware
no
ProtoMat 95s/II
Manual
35
4.2 LPKF ProtoMat 95s/II commands
4.3 Command structure
The SMCU (Signal Processor Control Unit) control unit in the machine interprets the HP-GL
commands described below and converts them into defined reactions.
The machine has a resolution of approximately 0.005 mm.
This differs from the resolution used by standard HP-GL plotters. The use of master
commands reduces the output.
The syntax:
Symbol
Meaning
{...}
The contents can be repeated any number of times.
()
The command parameters are between these brackets.
[]
The content of these brackets is optional and does not have to be included.
The SMCU expects a separator between the command parameters which is neither a
number nor a capital letter. A new command can follow a parameter without a separator. The
last character in a command file which is sent must be a semicolon or a line feed symbol (0A
hex).
Unknown commands are ignored by the control unit, but their parameters can lead to
unwanted Plot A0bsolute or Plot Relative commands.
4.3.1 HP-GL standard commands
AA (x,y,a{,ß}){;}
Arc Absolute
Draws an arc around the absolute coordinate (x,y) starting from the current position
with the arc angle a=[degrees]. It is drawn clockwise where the arc angle a is
negative, but otherwise it is drawn anti-clockwise.
AR (x,y,a{,ß}){;}
Arc Relative
Draws an arc around the relative coordinate (x,y) starting from the current position
with the arc angle a=[degrees]. It is drawn clockwise where the arc angle a is
negative, but otherwise it is drawn anti-clockwise.
CI (r{,ß}){;}
Circle
Draws a complete circle with radius r around the current position. Resolution ß is
ignored as the maximum resolution is always used when drawing.
EA (x,y){;}
Edge Rectangle Absolute
Draws a rectangle defined by two corner points diagonally opposite each other. The
first corner point is determined by the current position and the second by the
absolute coordinate (x,y).
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ProtoMat 95s/II
Manual
ER (x,y){;}
Edge Rectangle Relative
Draws a rectangle defined by two corner points diagonally opposite each other. The
first corner point is determined by the current position and the second by the
relative coordinate (x,y).
IN {;}
Initialize
Returns the control unit to it status after switching on. This restores all default
settings.
IW (x0,y0,x1,y1){;}
Input Window
Restricts the x/y-axis working area to a window with the corner coordinates
specified.
OH {;}
Output Hard Clip Limits
The control unit automatically determines its maximum travel range within
the limit switches and sends the coordinates determined in this way as an ASCII
string in the ("W Xmin,Ymin,Zmin,Xmax,Ymax,Zmax<cr>") form to the PC.
OS {;}
Output Status
The control unit sends its status cell to the PC in ASCII hex ("S xxxx <cr>").
PA (x1,y1{,...xn,yn}){;}
Plot Absolute
Draws a line from the current position to the absolute coordinates specified in
sequence. The commands PU and PD can be given between the pairs of
coordinates as parameters. If additional pairs of coordinates are sent, the
command word PA is not necessary. All pairs of coordinates without a command
word are taken to relate to the last PA or PR commands sent and are carried out
accordingly.
PD {;}
Pen Down
Lowers the tool.
PR (x1,y1{,...xn,yn}){;}
Plot Relative
Draws a line from the current position to the relative coordinates specified in
sequence. The commands PU and PD can be given between the pairs of
coordinates as parameters. If additional pairs of coordinates are sent, the
command word PA is not necessary. All pairs of coordinates without a command
word are taken to relate to the last PA or PR commands sent and are carried out
accordingly.
PU {;}
Pen Up
Raises the tool.
VS (v{,n}){;}
Velocity Select
Defines the track speed in the XY level v=[µm/s] with the tool lowered and allocates
this speed to the tool with number n.
ProtoMat 95s/II
Manual
37
4.3.2 Special commands
All special commands begin with the "!" character and their syntax is otherwise the same as
that for HP-GL standard commands.
!AS (a){;}
Acceleration Set
Defines a new acceleration constant a=mm/s2. The permissible value range is 10
to 50000.
!CC {;}
Close channel
Ends a data transmission introduced with !OC.
!CM (n){;}
Change Mode
Toggles between the drill (n=0) and the mill working modes (n=1).
!CT (n){;}
Command Counter
Toggles between the echo mode (n=1) and the non-echo mode (n=0). In echo
mode, the machine acknowledges every correctly completed command with the
message "C<cr>".
!EM (n){;}
External Motor
Switches the milling/drilling motor on (n=1) or off (n=0)
!ES (n){;}
Enable Stop
Enables (n=1) and locks (n=0) the external stop function. After switching on, the
external stop function is blocked.
!FP {;}
Full Power
Switches the x/y/z-axis motors to full power.
!HP {;}
Half Power
Switches the x/y/z-axis motors to half power.
!OC {;}
Open Channel
Opens direct data transmission from the SerialPort1 serial data channel to the
SerialPort2 serial data channel. All characters received on the SerialPort1 data
channel are sent to the SerialPort2 data channel until the !CC character string is
received.
!ON (a){;}
Output Nominal Position
The control unit sends the nominal position (setpoint position) of the motor axis
addressed with parameter a. The following addresses are attributed to the motor
axes:
0 = x/y/z-axis
1 = x-axis
2 = y-axis
3 = z-axis
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ProtoMat 95s/II
Manual
!RD (a){;}
Read Port
Effects the reading of the input port with the address a=<0..15>. The data is output
as an ASCII number through the serial port from which the command originated.
!RS (r){;}
Resolution Set
Tells the control unit the machine's step size (r=µm/step). The permissible value
range is 1...32000.
!TA (x,y,z){;}
Plot Three-D Absolute
Executes a spatial movement from the current position to the absolute coordinate
(x,y,z).
!TD (t1,t2,t3,t4){;}
Time for Drilling
Sets the new drilling time t=[ms].
!TM (t1,t2,t3,t4){;}
Time for Milling
Sets the new milling time t=[ms].
!TR (x,y,z){;}
Plot Three-D Relative
Executes a spatial movement from the current position to the relative coordinate
(x,y,z).
!TS (t){;}
Time to Stabilize
Sets a stabilization time t=[ms] between the individual commands.
!TW (t){;}
Time to Wait
The next command is only executed once the wait time t=[ms] has expired.
!VU (v){;}
Velocity if Pen Up
Defines the track speed v=[µm/s] of the motion in the XY plane when the tool is
raised.
!VZ (v){;}
Z-axis velocity
Defines the speed v=[µm/s] of the movement in the z-axis.
!WR (a,d{,m}){;}
Write Port
Writes the data word d to the port with address a=<0..15> with the option of
assigning a bit mask.
!ZA (z){;}
Plot z-axis Absolute
Moves the z-axis from the current position to the absolute coordinate (z).
!ZR (z){;}
Plot z-axis Relative
Moves the z-axis from the current position to the absolute coordinate (z).
ProtoMat 95s/II
Manual
39
4.3.3 Special command for the high-frequency spindle
Before communication with the high-frequency spindle can take place, the command to open
SerialPort2 (!OC;) must be issued and the
SerialPort2 serial port must then be closed again (!CC;)
!RM (r){;}
Revolutions Motor, r=0...60.
Sets the speed (r)*1000 of the high-frequency spindle.
!RD 6 {;}
Read Port 6
Forces the input port with the address 6 to be read. The data is output via the serial
port from which the command was issued as ASCII.
!WR 6 {;}
Write Port 6
Forces the data word x to be output to the port address x= 0..255.
4.3.4 Direct commands
Direct commands are special commands whic are executed via the command buffer once
they have been interpreted.
!CB{;}
Clear Buffer
Deletes all commands from the command buffer.
!GO{;}
Go On
Clears the stop command and continues command execution.
!RC{;}
Repeat Command
Repeats the most recently executed command.
!ST{;}
Stop
Interrupts command exectution when the current command is completed.
The command set implemented is a subset of HP-GL. When controlling the device
from any other CAD system, ensure that the step size of the HP-GL commands is
substantially smaller than that of normal pen plotters.
The step size is 6.25 µm/step. (5 mm/800 steps).
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ProtoMat 95s/II
Manual
4.4 Reprogramming the machine data
You will have to re-enter the PAUSE or HOME position data in the machine settings if the PC
operating system crashes and the head no longer moves to these positions.
Proceed as follows:
1.
Start up BoardMaster.
2.
Select CONFIGURATION,
SETTINGS from the menu bar.
3.
Click UNLOCK.
This activates the SET HOME and INITIALIZE push
button.
4.
Click on INITIALIZE. The device
moves to all four end positions. The
device then comes to a halt in the
zero position (at the front right). The
traverse range thus determined is
displayed under SIZE and saved by
BoardMaster.
See the BoardMaster Manual for
more detailed information.
5.
The coordinates for the HOME
position are generated
automatically.
The X value is set at 0 and the Y
value corresponds to half the value
specified for Y under SIZE.
Now enter the values noted down for the HOME position in the HOME box. These values
are determined as described in the section entitled "Checking and correcting the HOME
position".
The coordinates for the PAUSE position correspond to the values in the SIZE box. You
can enter any coordinates here.
6.
Click
7.
BoardMaster must be shut down and restarted.
to quit this box.
The new values are saved when the MACHINE SETTINGS... dialogue box is closed and you quit
BoardMaster.
ProtoMat 95s/II
Manual
41
5 Tools, material and accessories
5.1 Tools
Tools for the LPKF ProtoMat 95s/II have a diameter of 1/8 inch and two different lengths.
Tools used to machine the material surface (milling and engraving) are 36 mm long while
tools used for drilling or contour milling are 38 mm long.
The following tools are available.
1
2
3
4
5
6
LPKF tools for circuit board plotter
1.
36 mm long LPKF Universal LPKF cutter for milling isolation channels and for
engraving front plates from 0.2 - 0.5 mm (depending on depth set).
2.
36 mm long LPKF micro Cutter for milling 0.1 to 0.2 mm isolation channels (depending
on depth set) with a 17µm copper cladding on the board material.
3.
LPKF RF milling cutter for creating 0.25 mm or 0.4 mm wide
rectangular section isolation channels.
4.
36 mm long double-edged cutter (end-mill; 0.8 mm; 1 mm; 2 mm) for engraving front
plates and for engraving wider isolation channels.
5.
38 mm long twist drill of various diameters for drilling in board material.
6.
38 mm long contour cutter (1.0 mm; 2.0 mm) for milling out cut-outs in the board
material.
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ProtoMat 95s/II
Manual
5.2 Materials used for machining
In general all board materials supplied by LPKF can be used for machining. You are free to
machine all other materials at your own risk. Take into consideration the notes of the
manufacturers.
Material supplied by LPKF and suitable for machining:
FR3 material:
engraving, drilling, milling
FR4 material:
engraving, drilling, milling
Aluminium:
engraving, milling special alloys only, such as AlCuMg1
Engraving film:
engraving
The following products have proved particularly successful as materials for RF and
microwave applications:
Rogers:
R0®4000 , RT/duroid®, TMM®, Ultralam®
Other materials upon request.
Caution
Do not allow to the material to overheat - lethal gases may be produced.
Carcinogenic dusts may be produced when working with materials containing
glass fibres.
Therefore only work with the vacuum system switched on..
Carcinogenic dusts or hazardous gases may be produced when working with
unknown materials.
Ask your supplier or the manufacturer before you begin machining.
ProtoMat 95s/II
6
Manual
43
Stages in milling and drilling
6.1 Securing the PCB on the machine bed
Make 3.0 mm or 3.05 mm diameter congruent registration holes in the board material and
drilling base in the x-axis.
This can also be done with any bench drill. Please note that the diameter decreases during
galvanic through-hole plating.
Tip:
The drilling base should be drilled to a larger diameter, such as 5 mm, to
allow for inaccuracies in the registration holes.
Move the plotter head to the PAUSE position. Insert alignment pins in the front and rear
registration hole strips.
It is essential that you make sure the front registration hole strip in the machine groove is
pushed against the reference pin at the front.
Position the previously drilled base material and drilling base over the alignment pins.
The format of the board material should be selected so that the registration hole strip does
not need to be moved more than 10 mm. Moving the registration hole strip more than 10 mm
reduces the accuracy of the registration hole system.
Now additionally secure the board material in this position on all four sides with adhesive tape
(we recommend Tesakrepp 5250).
This prevent the corners of the board bending up.
3
2
1
4
5
6
Securing the board
1.
Machine bed (aluminium base plate)
2.
3 mm diameter alignment pins
3.
Board material approximately 1.6 mm thick
4.
2 mm thick drilling base
5.
Adhesive tape
6.
Registration hole strip
The alignment pins hold the PCB in position.
They also act as a reference point when double-sided boards are turned.
The adhesive tape holds the board down at the edges. This is particularly important for
contour milling.
Tip:
Very thin board material may be secured with spray adhesive to ensure
perfect flatness
It is important that no adhesive tape, drilling or milling swarf is left between the individual
layers to ensure that the board material lies absolutely flat. Small particles under the board
material have an adverse affect on the uniformity of the milling depth.
Caution
Switch on the vacuum system.
Bear in mind that the vacuum filter might need be changed.
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ProtoMat 95s/II
Manual
6.2 The mechanical working depth limiter
Caution
Keep your fingers clear of the machine's traverse range during operation.
It is particularly important that you keep the milling depth constant when milling isolation
channels in board materials which tend are often slightly curved. This is achieved by the
pneumatic working depth limiter on the LPKF ProtoMat 95s/II.
This provides the following benefits:
1.
The working depth limiter works on a non-contact principle since the compressed air
escapes on the underside and causes the working depth limiter to move on an air
cushion.
2.
The depth limiter rides on the surface of the material. The working depth limiter follows
warped PCBs.
3.
The material is held down within certain limits by the working depth limiter.
The head is raised and lowered pneumatically.
2
1
3
6
4
5
LPKF ProtoMat 95s/II working depth limiter
1.
2.
3.
4.
5.
6.
Holding plate
Knurled nut used to set milling depth
Retaining block for working depth limiter
Suction nozzle
Tool fixture (collet)
Compressed air connection
Milling depth is set by adjusting the knurled nut (2) on the working depth limiter.
Turning the wheel clockwise increases the milling depth and also the milling width in the case
of LPKF universal milling cutters due to their conical shape.
Turning the wheel counter-clockwise reduces the milling depth.
The milling depth is altered by approximately 4 µm for each click of the wheel.
Turning the wheel counter-clockwise is easier than turning it clockwise, particularly when the
head is lowered.
ProtoMat 95s/II
Manual
6.3 Functional elements on the plotter head
8
9
1
10
2
11
12
13
3
14
4
15
5
6
7
Side view of plotter head
1.
Valves
2.
Adjuster for damped travel, upwards
3.
Extraction
4.
Adjuster for damped travel, downwards
5.
Pneumatic block
6.
Base plate for motor
7.
Pneumatic working depth limiter
8.
Pneumatic connection for the collet
9.
High-frequency spindle with pneumatic cylinder
10.
Stop ring
11.
Retaining block
12.
Pneumatic connection for active auxiliary clamp
13.
Active auxiliary clamp
14.
Locating screw for working depth limiter
15.
Setting screw for knurled nut (Warning - do not move.)
16.
Compressed air connection
16
45
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ProtoMat 95s/II
Manual
1
6
11
7
8
9
2
3
10
4
5
Top view of plotter head
1.
6 bar compressed-air connection from pneumatic system unit
2.
Extraction with connection
3.
Pneumatic block with valves
4.
Z-axis guide
5.
Active auxiliary clamp
6.
High-frequency spindle with pneumatic cylinder
7.
Base plate
8.
Locating screw for working depth limiter (here covered by 6)
9.
Pneumatic connection
10.
Tapped hole for options
11.
Compressed air outlet (6 mm) to the AutoContac cartridge (optional)
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6.4 Drilling
Twist drill
Caution
Make sure that the board is secured in position before drilling. Switch on the
vacuum system.
The boards must be drilled with drills designed specifically for boards. It is important that the
head always lowers at a constant speed. This setting may be made with two setting nuts in
the pneumatic block on the plotter head.
Lowering the head too quickly may result in burring, particularly with holes of small diameter.
We therefore recommend that you punch holes with a small diameter before drilling. The
MARKINGDRILLS phase in BoardMaster is intended for this purpose and uses a special
universal milling cutter, the " UNIVERSAL CUTTER 0,2MM FOR MARKING".
Only one PCB can be drilled at a time. It is not possible to stack PCBs one on top of the
other. No drill cover plate is needed.
All drills are 38 mm long.
See the section entitled “Practical tips” for further instructions.
6.5 Isolation milling
LPKF Universal (1), Micro (2) and RF cutters (3)
Caution
Check that the board is properly secured before milling.
Switch on the vacuum system.
Ensure that the (36 mm long) LPKF Universal Cutters being used are sufficiently sharp
before you start milling. The milling width is preset in CircuitCAM by selecting the isolation
track width and the appropriate tool. The preferred milling width is between 0.2 and 0.4 mm.
It is recommended that you degrease the board material with a cleaning spray (degreaser for
electronic components). This makes it easier to suction off the millings.
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The milling depth must be set as large (deep) as possible in all cases. If only the extreme
milling cutter tip (<0.2 mm isolation) is used, the tool wears more quickly than with deeper
drilling.The LPKF Micro Cutters can be used to create even finer isolation channels but their
service life will be only approximately 20% of that of the LPKF Universal cutters mentioned
above.
Caution: Do not confuse Micro Cutters and Universal Cutters. It is only possible to distinguish
the two under a microscope.
A milling cutter which produces isolation channels with a rectangular cross-section has been
specially developed for RF technology.
approx. 0.2mm
Cu
approx. 0.1mm
approx. 0.25mm
approx. 0.075mm
FR4
Milling passes using the LPKF Universal, Micro and RF Cutters
See the section entitled “Practical tips” for more information.
See the section entitled "Board material" for the advantages and disadvantages of various
materials.
After machining, the PCB has to be cleaned.
This can be done either in a brush machine or, alternatively, with a manual board cleaner
(LPKF accessories). In either case, the PCB must be rinsed thoroughly with water to remove
any copper dust produced by brushing.
After rinsing, the PCB must be dried thoroughly (air drier) and then protected against
oxidation by a soldering varnish.
6.6 Contour milling in circuit board material
Contour Cutters
The traverse speed must be reduced for contour milling.
This may vary from material to material.
Use only contour Cutters (38 mm long) designed specifically for this purpose: preferably with
a 1 mm or 2 mm diameter.
The 1 mm contour Cutter should only be used for internal holes (smaller internal radius). It
breaks relatively easily so set the feed rate to the minimum setting.
The 2 mm contour Cutter is far more robust and is to be recommended for milling external
contours.
Caution
All speeds and feed rates prescribed in BoardMaster are for FR4 material.
You should begin at a lower feed rate when working with other materials.
Caution
Please note that some materials, including FR4, may produce
carcinogenic dusts (from glass fibres).
You should therefore always work with the vacuum system switched on.
Always use a microfilter.
Some materials (such as Teflon) may produce lethal gases during cutting.
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6.7 Milling wide isolation channels and rubouts
Double-edged cutter (end-mill)
Wide isolation channels and rubout areas (the removal of areas of residual copper) can be
created using 36 mm long double-edged cutters.
Various diameters are available (0.8 mm, 1 mm, 2 mm, 3 mm) depending on the size of the
residual copper area to be removed.
The milling depth must be set such that only minimal burring results when the copper is
removed. The 3 mm double-edged cutter is particularly well suited to milling very wide
isolation channels (VDE codes of practice).
6.8 Front plate engraving
Top: Double-edged cutter. Bottom: LPKF Universal Cutter
Set the traverse speed as appropriate for the engraving depth and the material when
engraving. Use an LPKF Universal Cutter or LPKF double-edged cutter.
Caution
Switch on the vacuum system, even when engraving.
6.9 Milling solder-stop sheets
Create the pads in solder-stop sheets using a Unimill 100 Micromill with a tool diameter of
0.15 mm.
The speed should be set to 20,000 rpm and the advance to 5 mm/s.
Tip:
Set the milling depth using an edge area of the solder-stop sheet which is not
used. Use the traverse buttons in BoardMaster to mill a 2 x 2 mm square
with the motor switched on and check the depth.
Once the milling depth has been set, start the milling procedure using the file prepared by
CircuitCAM.
At the end of the milling procedure, check that all the pads have been cut out. Start the
milling procedure a second time if this is not the case.
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6.10 Milling layout films
LPKF RF Cutter
• Layout films may be machined with LPKF RF Cutters.
• Secure the film base (plexiglas or glass sheet) onto the machine bench with Tesa tape.
• Lay the film material on the base with the coated (matte) side facing upwards.
• Now flatten the film material out firmly on the film support, expelling any air completely.
• Now stick down the film on all four sides with a non-stretching transparent adhesive tape
to form an air seal.
There must not be any air bubbles between the film and the base.
The milling depth can now be set at the film edge.
It can be checked by milling a frame around the film area (manual method).
• The speed of movement should be reduced to about 15 mm/sec.
• Switch on the extractor, but only to half power, so that it extracts "secondary air" on the
suction connection or reduce the power on the electronic vacuum system controller if
there is one fitted.
The film milling program may now be started.
• Film material comes in DIN A3 and A4 formats (special sizes available upon request).
Important: The film coating is easily scratched and is water-soluble,
so do not let it come into contact with water.
The film can be recopied with a colouring device upon request.
See the section entitled "Practical tips" for more information.
6.10.1 Staining milled films
For milled negative films, there is Duroscal (black stain), with which positives can be made.
The fully milled engraving film is stained with Duroscal stain by pouring the liquid onto a
SAFIR pad and spreading it evenly over the whole film.
Excess stain must be wiped off with cellulose wadding.
The stained film must be held against the light to check it and to find poorly covered areas so
that they can be re-stained.
Now remove the coating immediately. The stain must not dry.
Caution
Follow the instructions on the stain container.
The stain must not get onto the back of the film as it cannot be removed.
The stain is also very difficult to remove from other surfaces (fabrics, skin).
Wear an overall and rubber gloves.
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6.10.2 Removing the coating
When removing coatings, only treat one film per container to prevent any damage of the
second film by contact between the back of it and a surface wet with colour.
Caution
Follow the safety instructions on the quick-acting coating remover container.
There are two options for coating removal:
1.
Quick coating removal.
Pour the quick-acting coating remover onto the film and immediately wipe the
dissolved protective coating with cellulose applying light pressure.
Now dry the film with cellulose wadding, blotting paper or a cloth.
2.
Removal with water.
This method involves placing the film in a bowl of hand-hot water (to which a small
amount of washing-up liquid has been added).
The protective layer dissolves after about 30 minutes.
Any remaining coating must be removed with a fine hand brush.
This method is more economical and kinder to the environment than the quick-acting
method of removal.
The film can be left in the water bath as long as you want.
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6.11 Tool libraries in BoardMaster
BoardMaster can be loaded with a previously created library of various tools as an aid to
deciding which tool can be used for which materials.
Select the MILL/DRILL submenu of the CONFIGURATION, TOOL LIBRARY menu in BoardMaster.
The MILL/DRILL TOOL EDIT dialogue box opens and you can now LOAD a suitable tool library
from the directory selected. The tool library directory is called c:\lpkf30\bmaster. Tool
libraries have the extension .tol
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6.12 Board material
In principle, all board materials can be machined although the LPKF ProtoMat 95s/II is not
intended for machining wood.
However, phenol resins of lesser quality, such as FR 2, can adversely affect the milling
quality.
Glass fibre reinforced epoxy material (FR 4 or G 10) can be a health hazard due to the milling
dust produced (allergies, risk of cancer).
Tool service life is also substantially reduced.
Caution
Never work without the extractor running.
We recommend epoxy material without glass fibre (FR 3). A total thickness of 1.5 mm with a
35 µm copper coating is normally used.
With top milling quality and a high tool service life, no disadvantages with regard to FR 4 are
known other than a slightly reduced mechanical bearing capacity (breakage).
This should not be a significant drawback for prototype boards unless particularly
heavy components are to be mounted.
With 17 µm material even finer milling passes can be engraved at a higher packing density.
For galvanically through-hole-plated, double-sided PCBs FR4 material, 5 - 17 µm Cu
thickness is used to prevent an excessively thick copper layer after galvanic copper
application.
Compromises must be taken for 70 µm material when setting the milling depth in that a
deeper milling depth results in wider milling passes of 0.3 to 0.6 mm.
Special board materials with a thicker copper layer of up to 300 µm can no longer be
machined with the LPKF Universal Cutter.
Contour cutters or special tools are needed for these materials.
In these cases, we would ask that you consult us and send sample material so that we
can carry out any tests which may be necessary.
The following materials have proved particularly successful for RF and microwave
applications:
Rogers:
R0®4000 , RT/duroid®, TMM®, Ultralam®
A drilling base is essential for all machining processes on board material.
This allows holes to be drilled through the board without damaging the machine.
The drilling base can be made simply of bakelized paper and should be 2 mm thick.
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6.13 Cleaning the PCB
Before components are mounted, the finished PCB must be thoroughly cleaned.
This can be done manually or in a board brushing machine.
If cleaning by hand, the PCB is placed on a flat support.
Brush the board with a wet board cleaner (such as the LPKF PAD board cleaner) in the
preferred direction of the conductor paths.
The point of brushing is, firstly, to remove the layer of oxidation, and, secondly, to remove
any burrs resulting from the use of a blunt tool.
After brushing, the PCB must be free of any metal particles.
From now on, the board should only be held by its edges or with gloves.
It is best to rinse off the board under running hot water to remove any brushings from the
isolation channels.
Now dry the board with an air drier.
After drying the board, coat it on both sides with soldering varnish.
Caution:
Never use compressed air to blow out the channels as any oil particles in the
air introduced by a faulty oil separator can cause problems later in the
manufacturing process.
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6.14 Tutorial on creating a printed circuit board
It is assumed that the relevant milling data has already been loaded or prepared in
BoardMaster. For example, the data from the CircuitCAM tutorial can be used.
A further requirement is that the HOME position has been programmed exactly as described
above.
A tool list must be defined and the tool magazine must be filled according to this list.
Caution
Take care when handling the tools. Danger of cutting. Do not forget to switch
on the vacuum system during machining.
1.
Move to the PAUSE position using the BoardMaster menu (GO TO, PAUSE).
2.
Secure the board material with alignment pins as described in the section entitled
"Securing the board".
3.
Move to the bottom left corner (-x, -y) of the board material using the traverse buttons
in BoardMaster such that the working depth limiter does not quite come into contact
with the adhesive tape.
4.
Program this corner in the BoardMaster menu CONFIGURATION, MATERIAL, SET LOW
CORNER .
5.
In the same way, move to the top right corner (+x, +y) of the material and program this
under CONFIGURATION, MATERIAL, SET HIGH CORNER.
6.
The material is shown in BoardMaster as light grey on the dark grey machine surface.
7.
Select LMD OR LPR under FILE, IMPORT and import the tutorial file TUTOR.LMD.
(See also the instructions for importing the file null-pkt.lmd in the section entitled
"Checking and correcting the HOME position")
8.
Position the view of the board in BoardMaster using EDIT, PLACEMENT such that all
graphical data is located on the material.
Tip:
You can open the "PLACEMENT" dialogue box by right-clicking
when the mouse pointer is positioned immediately over the graphical data.
9.
Select the first machining phase, DRILLINGPLATED.
10.
Click on
11.
Switch on Auto Motor On/Off
12.
Close the hood on the ProtoMat 95s/II.
The hood must always be closed when a tool is being changed.
13.
Click on START
14.
BoardMaster automatically changes the tool for the one required in the next machining
phase. The auxiliary clamp fetches the required tool from the tool magazine and takes
it to the transfer station. The tool is automatically handed over at the transfer station.
15.
The motor switches on and the first drilling diameter of the drilling phase is executed.
to select the drilling data. Selected data is shown brighter.
. (Right motor button in BoardMaster).
.
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16.
Once the holes of the current diameter have been drilled, the next tool is fitted in the
same way.
17.
When the drilling phase has finished, the MILLINGBOTTOM milling phase is selected
once any galvanic through-hole plating has been carried out.
18.
The milling depth should now be set. To do this, click on Universal Cutter 0.2 mm in
the Tools combo box (top left in the screen).
19.
The plotter head travels to the zero position. The auxiliary clamp fetches the universal
milling cutter from the tool magazine and takes it to the transfer station where it is
handed over automatically.
20.
Use the traverse buttons in BoardMaster to move to a vacant point on the board
material but without moving across the project.
21.
Set the step size to 5-10 mm in the STEP SIZE box.
Use the AUTO MOTOR ON/OFF
MOTOR ON/OFF
button to switch off the motor and the
button to switch the motor back on,
lower the head by clicking on
and move with the traverse buttons.
Set the milling depth. See also the section entitled "How the mechanical working depth
limiter works".
22.
The milling data can now be selected by clicking on
shown lighter.
23.
Use the MOTOR ON/OFF
AUTO MOTOR ON/OFF
Use the
. The selected data is
button to switch the motor off and the
button to switch the motor back on.
button to start the machining.
24.
Then move to the PAUSE position and turn the material if you are machining a doublesided board.
25.
Select the MILLINGTOP milling phase and machine as described above.
26.
If required, select the CUTTING mill phase and machine with a contour cutter.
27.
Move to the PAUSE position, remove the board and proceed as described in the section
entitled "Cleaning the board".
Caution
The hood must always be closed whenever the there is any movement
during a tool change.
The tool magazine is moved by compressed air. This increases the risk of
fingers being crushed.
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6.15 Practical tips
•
Set the milling depth such that engraving is too deep rather than too shallow.
Insufficient depth when engraving increases wear on the milling tool.
•
There are a number of reasons why the milling width (depth) might be uneven.
It is important that the machine bed is truly clean.
Adhesive tape residue and such like can have a significant adverse affect on the
milling depth. Millings between the machine bed, drilling base and board reduce
precision.
Greatly distorted materials bend such that the sag shows underneath; in this case,
secure the edges well with adhesive tape. Another important point for precise milling
depth is that millings and drilling chips are removed by suction.
•
Hooks can occur between the milling tracks if the incorrect milling
sequence is followed, in particular with circles.
If a circle is to be milled anti-clockwise with a tool which rotates clockwise, fine hooks
can occur between the copper areas if the milling tracks overlap.
The reason for this is that the cutting speed on the outer edges is reduced. The
solution is to select the correct direction of milling.
In addition, you can select the REMOVE SPIKES option on the STRATEGY tab in
CircuitCAM when you set up the isolation job.
•
Milling burrs can be caused by blunt tools or incorrect traverse speeds.
•
Deeper settings can be used to make corrections if the structure being milled permits.
Otherwise, change the tool.
•
Burrs arising during contour milling or cut edges which are not clean are caused
either by a blunt tool or an incorrect feed rate.
•
With some materials, the colour of the milling pass gives some indication of the
condition of the tool.
Dark isolation tracks on epoxy materials indicate that the tool is sharp, while lighter
tracks indicate a blunt tool.
•
Drilling burrs are caused either because the tool is blunt or the head is being lowered
too quickly.
In the first case, change the tool. In the second case, the tool height over the material
must be reduced.
•
Drill deflection occurs where thin tools which are no longer absolutely sharp are used.
However, surface structure of the material may also be a factor.
Drill deflection cannot be avoided even with a sharp tool if, for example, the glass fibre
structure of FR4 materials penetrates the copper.
Drill deflection is very slight for materials with additional, removable copper film (FR4
material with 18 µm or 9 µm copper coating).
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Tip:
•
We recommend that you punch-mark small diameter holes before drilling.
The MARKINGDRILLS phase in BoardMaster is intended for this purpose and
uses a special universal milling cutter, the " UNIVERSAL CUTTER 0,2MM FOR
MARKING".
Vitrification of the drilled hole occurs as a result of the board material melting when
the drill remains in the hole too long after the hole has been made.
These holes then cause problems for through-hole plating.
Reduce drilling times as appropriate.
•
Drills may break where the drilling base has already been used a number of times.
The drilling base should be changed for each new board.
The drill may break if it comes into contact with the edge of an existing hole in the
base.
Broken tools must be removed from the PCB and the drilling base. Very thin drills may
also break if the tool is too high above the material.
•
Milling passes created during film milling will be uneven if there is air still trapped
under the film.
The film may buckle after a while if elastic adhesive tape is used to secure the film.
It is particularly important that the milling base is flat (LPKF engraving film backing).
•
Burrs will be produced when milling film if either the tool is blunt or milling is too deep.
•
Uniform misalignment between the solder and component sides occurs where the
HOME position has not been programmed accurately.
•
Increasing misalignment in the x-axis between the solder and component sides
occurs where the registration hole system is no longer parallel to the x-axis.
A new registration hole system will have to be drilled.
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7 Appendix
7.1 Maintenance
Keep spindles clean. In rooms with a high air humidity, wipe down with a lightly oiled cloth
from time to time. Keep transport spindles oiled and clean. Do not oil the bearings.
7.1.1 Working depth limiter
Dismantle and clean the working depth limiter at regular intervals.
To do this, first switch off the machine. Then proceed as follows:
1
1.
Undo the pneumatic connection.(1)
2.
Remove the plug from the spindle (3).
3.
Undo the Allen screws in the retaining block (4).
2
4.
The spindle may be pulled up and out together with the
pneumatic cylinder (2). Twist the spindle from side to side if
necessary.
3
5.
Remove the fixture (5).
6.
The working depth limiter (6) can now be pulled out to the
side for cleaning.
7.
Clean both parts of the working depth limiter using the
brush supplied.
8.
4
5
When clean, the working depth limiter is reassembled in
reverse order and the spindle is reinserted into the retaining
block.
6
9.
Always check that the insertion depth of the spindle is
correct before starting up. The stop ring must sit on top.
The distance between the drill tip and machine base plate must be 0.5 mm when the
head is lowered.
The machine may not be able to drill through the board if the distance is too great.
10.
Finally retighten the screws (3) and put the plug back into the spindle.
0.5mm
(Head lowered)
Check the distance when reassembling the plotter spindle.
The machine may be damaged if the distance is too small when drilling.
Caution
Use only graphite to lubricate the working depth limiter.
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7.2 SerialPort 1 serial connection
The SeralPort1 serial data channel is an RS 232-C standard port with electrical isolation and
is used for communication between the control unit and the PC.
The SerialPort1 data transmission rate is programmed using DIL switches 1 and 2.
Switch 1
Switch 2
Baud rate
OFF
OFF
4800 baud
ON
OFF
9600 baud
OFF
ON
-
ON
ON
-
Default setting
SerialPort1 pinouts:
Pin
Signal
Meaning
2
TXD
Transmit Data
3
RXD
Receive Data
4
RTS
Request to Send
5
CTS
Clear to Send
7
GND-I
Ground (isolated)
8
DCD
Data Carrier Detect
20
DTR
Data Terminal Ready
All signals are galvanically decoupled; all contacts not described are not used.
7.3 SerialPort2 serial connection
The SerialPort2 data channel is an RS 232-C standard port and can be used for
communication between the control unit and another system.
The SerialPort2 data transmission rate is programmed using DIL switches 3 and 4.
Switch 3
Switch 4
Baud rate
OFF
OFF
4800 baud
ON
OFF
9600 baud
OFF
ON
-
ON
ON
-
SerialPort2 pinouts
Pin
Signal
Meaning
3
TXD
Transmit Data
2
RXD
Receive Data
7
RTS
Request to Send
8
CTS
Clear to Send
5
GND
Ground
All contacts not described are not used.
Default setting
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7.4 Connecting the stepping motors
The stepping motors are connected per axis via a 15-pole SUB-D plug.
If a limit switch is actuated, any further axis movement towards the limit switch is immediately
blocked.
The position of the sockets is described in the
"LPKF ProtoMat 95s/II displays and connections" section.
Caution
Never confuse the cable for the stepping motor and the plotter head.
7.5 Connecting the plotter head
The plotter head is connected to the control unit by a 15-pole socket.
The position of the sockets is described in the "LPKF ProtoMat 95s/II displays and
connections" section.
A further 5-pin cable supplies the high-frequency spindle.
Caution
Never confuse the cable for the stepping motor and the plotter head.
7.6 Setting the tool change positions
The machine must be in operational mode for this adjustment to be made.
The metal hood on the front of the machine must be removed before the adjustments can be
made.
1. Do this by undoing the 6 (2x3) bolts on either side of the hood (see illustration below).
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Three pneumatic hoses will be found on the underside of the front of the machine revealed.
The right hose connection lights up green in operation.
2. Now disconnect the right, illuminated hose connection (see illustration below). You may
now move the tool change magazine up and down by hand.
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3. Open the SERVICE window in the CONFIGURATION \ TOOL MAGAZINE menu.
4. Now click on SERVICE.
The following window appears.
5. Enter "Bmaster" in the input field.
Note: Once the password has been entered, all tool change functions
can be operated manually and independently of one another.
6. Click on CHECK at the top left of the TOOL MAGAZINE window.
The machine moves to the check position.
7. Now click on OPEN in the COLLET window.
The plotter head collet opens.
8. Insert a universal milling cutter tool in the plotter head collet. Make sure that the ring on
the tool is at the same level as the lower plate of the working depth limiter (see illustration
below).
Tool ring
9. Now click on CLOSE in the COLLET window.
Lower plate of the working
depth limiter
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The plotter head collet closes and grips the tool.
10. Shift the entire Tool magazine window down the screen until you can see the BoardMaster
main menu bar.
11. Enter the value 0.1mm in the step window. Make sure that you enter a decimal point
between the zero and the one.
12. Lift the tool change magazine carefully with both hands (as shown on the right in the
illustration below) observe whether the appropriate changeover station or collet can be
properly moved over the tool. If it stutters or jams, check carefully in which direction the
position of the plotter head has to be corrected.
Auxiliary gripper Changeover-station Plotter head
Tool change magazine
13. If necessary, correct the plotter head position using the arrow keys in the main menu bar.
14. Then repeat steps 12 to 13 until the transfer station can be shifted over the tool with no
problem.
15. Click on READ in the POSITION OF PLOTTER HEAD OVER TRANSFER STATION (MM) tool
magazine window.
The coordinates set for the plotter head are now imported and saved.
16. Now click on OPEN in the COLLET window.
17. Remove any tool from the collet.
18. Click on CHECK in the Position of auxiliary gripper over transfer station (mm)
window.
The auxiliary gripper moves to the corresponding check position.
19. Insert the tool into the auxiliary gripper as far as the stop.
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20. Now click on CLOSE in the COLLET window.
The collet clamps the tool in the auxiliary gripper.
21. Now repeat position adjustment as described in steps 12 to 14 again until the tool in the
auxiliary gripper can be moved to the transfer station without problem.
22. Click on READ in the POSITION OF AUXILIARY GRIPPER OVER TRANSFER STATION (MM) window.
The coordinates set are read by the system and saved.
23. Click on OPEN in the COLLET window.
24. Remove the tool and insert it in position 1 of the tool change magazine (on the right).
25. Click on CHECK in the POSITION OF AUXILIARY GRIPPER OVER FIRST TOOL window.
The auxiliary gripper moves to the corresponding check position.
26. Check the position as described in steps 12 to 14 and correct it if necessary.
27. Click on READ in the POSITION OF AUXILIARY GRIPPER OVER FIRST TOOL window.
The coordinates set are read by the system and saved.
28. Now insert the tool in position 30 of the tool change magazine (on the left).
29. Click on CHECK in the POSITION OF AUXILIARY GRIPPER OVER LAST TOOL window.
The auxiliary gripper moves to the corresponding check position.
30. Check the position as described in steps 12 to 14 again for this position.
31. Correct the position if necessary.
32. Click on READ in the POSITION OF AUXILIARY GRIPPER OVER LAST TOOL window.
The coordinates set are read by the system and saved.
33. Now remove any tools in the machine.
34. Now click on CLOSE in the COLLET window.
35. Click on OK.
Tool change position adjustment is now complete.
Now reconnect the pneumatic hose disconnected at the start and refit the cover.
7.7 EPROMs
The software for the control unit is in 2 EPROMs.
The LPKF ProtoMat 95s/II will have to be partially dismantled if the EPROMs need to be
changed (updates).
Proceed as described under "Removing the electronics unit".
Use only PLCC pliers to remove the EPROMs as otherwise the mounting contacts might be
damaged.
When inserting new EPROMs, support the PCB from the bottom in order to avoid bending of
the board.
ProtoMat 95s/II
Take care that the orientation of the EPROMs is correct.
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7.8 ProtoMat 95s/II and AutoContac
As with all LPKF circuit board plotters, the ProtoMat 95s/II may be retrofitted with the LPKF
AutoContac through-hole plating system. A bracket for this must be attached to the plotter
head to hold the cartridge containing the conductive paste.
1
2
6
5
3
4
Attaching the AutoContac bracket
1. Limit switches
2. Plotter head mounting plate
3. AutoContac bracket
4. Knurled locating screw
5. Elongated hole for guide pin
6. Guide pin
The compressed air hoses (included with the parts supplied with the LPKF AutoContac) are
connected up to the ports on the DispoMat (see the LPKF PROTOMAT 95S/II DISPLAYS AND
CONNECTIONS section) and to the cartridge (see the FUNCTIONAL ELEMENTS ON THE PLOTTER
HEAD section).
BoardMaster switches from automatic tool change to manual change if the “Dispense” or
“Vacuum” production phase is selected since it is not possible to change the various
dispense and vacuum needles automatically. In addition the operator must attach the bracket
to the plotter head.
Caution :
Revert to the automatic tool change mode for drilling, engraving or milling.
The bracket must be removed as otherwise the plotter would be damaged by
the automatic tool change.
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71
7.9 Switching the device voltage,
electrical fuses
Caution
Make sure that the mains connector is removed before working on the fuses
or opening the device.
The LPKF ProtoMat 95s/II has both primary fuses and secondary fuses.
The main (primary) fuses (slow) are in the control unit power connection and can be
accessed from the outside.
Caution
Make sure that both fuses are replaced when switching to another line
voltage.
Both fuses must have the same rating.
Voltage setting and fuses
The secondary fuses are inside the control unit.
The control unit must be removed from the mechanism before replacing the fuses. Proceed
as described under "Removing the electronics unit".
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ProtoMat 95s/II
Manual
7.10 Removing the electronics unit
The control unit must be isolated from the mechanism.
First move the plotter head to the TOOL CHANGE position if the circuit board plotter is still
attached.
Now use the traverse buttons to move the crossbar to the centre of the machine base plate.
The head must not be in either the TOOL CHANGE or HOME position and the limit switches
must have been cleared.
Switch off the circuit board plotter and disconnect the device from the mains by removing the
mains connector.
Position of the screws for removing the electronics unit from the
LPKF ProtoMat 95s/II mechanism
Undo the electric connections between the mechanism and the control unit.
Tilt the circuit board plotter towards the head.
Undo feet 1, 2, 3, 4 and the Allen screws 5, 6 on the underside of the machine.
Remove the cover with the limit switches.
The control unit has now been released.
Caution
Check that the machine is disconnected from the mains by removing the
mains connector.
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73
View of the LPKF ProtoMat 95s/II circuit boards
4
3
2 1
OFF
ON
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
DIL switches for setting the baud rate (9)
(with default setting)
Mains filter
Transformer
Transformer connection
Plotter head power pack
Z-axis power pack (bare)
Y-axis power pack
X-axis power pack
Processor section
DIL switches for setting the baud rate (in default setting)
PSUs
Processor
EPROM L
EPROM H
EPROM for motor output stage (electronics under the cover)
Processor for motor output stage (electronics under the cover)
701-705 Various fuses (see below)
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ProtoMat 95s/II
Manual
The secondary circuits are protected by microfuses (medium slow) as follows:
Fuse
Type
Power circuit
F701
3.15 A
Power high level
F703
5.00 A
+24 V at I/O-interface
F704
2.00 A
+5V and VREF
F705
0.50 A
RS 232 C/SerialPort1
The units are reassembled in the opposite order to that described above for disassembly.
CAUTION
Never confuse the cable for the stepping motor and the plotter head.
Always check that head and motor cables are connected correctly before switching on.
The fuses in the primary current circuit are in the power switch, which also contains the
mains filter and the power selector (e.g. 230 V/115 V).
Medium time-lag fuses must be used:
230V fused with 1.6A
115V fused with 3.15A
ProtoMat 95s/II
Manual
7.11 Table of available tools
Tools marked with an asterisk (*) are available for the LPKF ProtoMat 95s/II.
Name
Diameter
Length
in mm
36 mm
Universal milling cutter
0.2 - 0.4
*
L
Micromill
0.1 - 0.2
*
L
HF cutter
0.25
*
L
0.4
*
L
Contour milling cutters
Double-chamfered cutters
Drills
Delivery
38 mm
L = in stock
1.0
*
L
2.0
*
L
3.0
*
L
0.8
*
L
1.0
*
L
2.0
*
L
3.0
*
L
0.3
*
L
0.4
*
L
0.5
*
L
0.6
*
L
0.7
*
L
0.8
*
L
0.9
*
L
1.0
*
L
1.1
*
L
1.2
*
L
1.3
*
L
1.4
*
L
1.5
*
L
1.6
*
L
1.7
*
L
1.8
*
L
1.9
*
L
2.0
*
L
2.1
*
L
2.2
*
L
2.3
*
L
2.4
*
L
2.5
*
L
2.6
*
L
2.7
*
L
2.8
*
L
2.9
*
L
2.95
*
3.0
*
L
75
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7.12 Replacement parts for the ProtoMat 95s/II
Replacement part
Order number
SMCU complete with housing for ProtoMat 95s/II
105124
SMCU board: SMCU941 for ProtoMat 95s/II
104950
Spindle controller: HFAMP962
101405
Transformer for ProtoMat 95s/II
106159
Mains filter
100036
Set of fuses for ProtoMat 95s/II
100832
Null modem cable
100037
Plotter head cable
100257
Plotter head cable for high-frequency spindle
100247
Spiral cable for high-frequency spindle
100253
Limit switch for x-axis
100007
Limit switch board
100776
High-frequency spindle
102668
1/8 inch collet for high-frequency spindle
100183
Stepping motor with transport spindle, x-axis
106204
Stepping motor with transport spindle, y-axis
106206
Working depth limiter
100337
Registration hole slide, front
100038
Registration hole slide, rear
100039
DIN6325 cylindrical pin M6 3x8
100042
Extraction hose
100198
Cable chain
100233
Tool magazine
101388
Auxiliary gripper insert, active
104540
Transfer station, complete
104060
Clamping jaws, transfer station
100404
Limit switch, tool magazine
102258
Pneumatic block
100375
Pneumatic control unit
100409
Pneumatic system unit, entire
100376
Caution
Be sure to give the machine number (stamped on the machine bed) when
ordering replacement parts.
ProtoMat 95s/II
Manual
77
7.13 Concluding remarks
As a rule, the machine recommendations 93 / 44 of the European Community, dated June
14, 1993 applies to this manual.
Where reference has not been made to the EC Directive in any section,
we hereby refer the reader to the relevant paragraphs of the Directive and
any claims concerning completeness and liability are excluded.
Furthermore, we hereby point out remaining risks unknown to the manufacturer which might
occur due to inexpert handling of the machine.
LPKF shall not be liable for any damage resulting from use of the LPKF ProtoMat 95s/II.
This also applies to those instances of damage already referred to.
78
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Manual
ProtoMat 95s/II
Index
A
Asynchronous interface ............................................................................................ 17
AutoContac bracket ................................................................................................ 65
Auxiliary gripper ...................................................................................... 11; 22; 44; 45
B
Baud rate ............................................................................................................ 25; 33
Board material............................................................. 7; 26; 27; 32; 42; 47; 52; 54; 55
BoardMaster ................................................................... 17; 18; 24; 25; 30; 39; 54; 55
C
Characteristics ............................................................................................................ 6
Circuit board plotter................................................................................................... 40
Collet......................................................................................................................... 12
Configuration diskette ............................................................................................... 26
Continuous sound pressure level................................................................................ 8
Contour milling ........................................................................................ 40; 42; 47; 56
D
Declaration of conformity .......................................................................................... 76
Double-chamfered cutter .......................................................................................... 48
Drilling burr................................................................................................................ 56
E
EPROMs ................................................................................................................... 64
F
Faulty sections .......................................................................................................... 29
Fräsbohrplotter.......................................................................................................... 77
Functional test........................................................................................................... 25
Fuses ........................................................................................................................ 66
H
Hardware handshake ................................................................................................ 25
High-frequency spindle ....................................................................................... 44; 45
HOME position.......................................................................................................... 11
Checking ................................................................................................................ 27
Test program.......................................................................................................... 27
Hood ....................................................................................................... 14; 15; 23; 55
HP-GL ....................................................................................................................... 36
I
Isolation milling....................................................................................................... 46
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79
K
Konformitätserklärung ...............................................................................................77
L
Layout film .................................................................................................................49
Limit switch ..........................................................................................................24; 35
Line voltage ...............................................................................................................18
M
Machine bed ..............................................................................................................56
Milling ..................................................................36; 40; 41; 42; 43; 46; 47; 48; 49; 57
Milling depth ................................................................................42; 43; 48; 49; 55; 56
Milling pass................................................................................................................52
Milling passes ......................................................................................................52; 57
Milling phase..............................................................................................................55
Milling track................................................................................................................28
Milling width .........................................................................................................46; 56
Milling-drilling plotter ............................................................................6; 17; 26; 33; 76
Motor ...............................................................................12; 25; 36; 44; 54; 55; 60; 69
O
Operating indicator ....................................................................................................24
P
PAUSE position ...................................................................................................11; 28
Pilot pins ....................................................................................................................18
Placement dialogue box ............................................................................................54
Plotter head .....................................................................22; 31; 32; 42; 44; 45; 60; 68
Pneumatic block ..................................................................................................44; 45
Pneumatic system unit ..............................................................................................14
Postprocessing ..........................................................................................................17
R
Reference ...........................................................................................................26; 42
Reference pin ................................................................................................11; 31; 42
Reference position.....................................................................................................11
Registration hole........................................................................................................26
Registration hole drill ...................................................................................................7
Registration hole slide .........................................................................................11; 26
Registration hole strip ....................................................................7; 11; 26; 31; 32; 42
Registration hole system .............................................................11; 26; 30; 31; 32; 42
Residual copper areas...............................................................................................48
Rubout areas .............................................................................................................48
S
SeralPort1..................................................................................................................59
Serial port ......................................................................................................25; 33; 37
SerialPort1
Settings...................................................................................................................59
SerialPort2.................................................................................................................59
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Manual
ProtoMat 95s/II
Pinouts ................................................................................................................... 59
SMCU ....................................................................................................................... 34
Solder-stop sheet...................................................................................................... 48
Spacer ring.......................................................................................................... 20; 23
Special commands.................................................................................................... 36
T
Tool change .................................................................................................... 6; 21; 22
Tool change positions ............................................................................................... 60
Tool library ................................................................................................................ 51
Tool magazine ........................................................................................ 11; 21; 23; 55
Tool position........................................................................................................ 23; 24
Transfer station ......................................................................................................... 22
Transport securing devices ................................................................................... 9; 10
Traverse range.................................................................................................... 18; 39
Traverse speed ................................................................................... 8; 47; 48; 49; 56
V
Vacuum ................................................................................................................ 8; 46
Vacuum system ........................................................................ 7; 9; 32; 42; 46; 48; 54
Vitrification of the drilled hole .................................................................................... 57
W
Warm-up period ........................................................................................................ 19
Working depth limiter ............................................................ 12; 31; 43; 44; 54; 55; 58
Z
Zero position ............................................................................................................. 55
ProtoMat 95s/II
Manual
81
8.1 Declaration of conformity for the LPKF ProtoMat
95s/II
1.
The manufacturer of the machine identified as the LPKF ProtoMat 95s/II
is:
LPKF
Laser & Electronics AG
Osteriede 7
D-30827 Garbsen, Germany
2.
The machine identified as the LPKF ProtoMat 95s/II is a circuit board plotter intended
for the creation of circuit board prototypes and engraving films as well as for engraving
aluminium or plastic . The series number of this machine is 1E............(see also the
base plate).
Further information on the LPKF ProtoMat 95s/II may be obtained from the
accompanying manual.
3.
The LPKF ProtoMat 95s/II complies with the requirements of the EC Machinery
Directive 93/68 dated 22 July 1993, the EC Low Voltage Directive (73/23/EEC) and EC
EMC Directive (89/336/EEC).
4.
The LPKF ProtoMat 95s/II has been manufactured in accordance with the state of the
art and in accordance with recognised rules of safety. Existing DIN specifications have
also been applied in the manufacture of the LPKF ProtoMat 91s/HS.
5.
Authorized signatory to this declaration:
Herr Bernd Hackmann
Technischer Geschäftsführer LPKF
Osteriede 7
D-30827 Garbsen, Germany
Bernd Hackmann
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Manual
8.2 Konformitätserklärung für LPKF ProtoMat 95s/II
1.
Hersteller der mit LPKF ProtoMat 95s/II bezeichneten Maschine
ist die Firma:
LPKF
Laser & Electronics GmbH
Osteriede 7
D-30827 Garbsen
2.
Bei der mit LPKF ProtoMat 95s/II bezeichneten Maschine handelt es sich um einen
Fräsbohrplotter, der zum Erstellen von Leiterplattenprototypen und Gravurfilmen,
sowie zum Gravieren von Aluminium oder Kunststoff geeignet ist. Die Seriennummer
der vorstehenden Maschine ist 1E............(siehe auch Bodenplatte).
Weitere Angaben zum LPKF ProtoMat 95s/II sind dem beiliegenden Handbuch zu
entnehmen.
3.
Der LPKF ProtoMat 95s/II entspricht den Bestimmungen der EG-Maschinenrichtlinie
93 / 68 vom 22. Juli 93, der EG-Niederspannungsrichtlinie ( 73 / 23 / EWG ) und der
EG-Richtlinie EMV ( 89 / 336 / EWG ).
4.
Der LPKF ProtoMat 95s/II ist nach dem Stand der Technik und nach den anerkannten
sicherheitstechnischen Regeln gebaut worden. Bei der Erstellung fanden auch
bestehende DIN-Vorschriften Anwendung.
5.
Bevollmächtigter Unterzeichner dieser Erklärung ist
Herr Bernd Hackmann
Technischer Geschäftsführer LPKF
Osteriede 7
D-30827 Garbsen
Bernd Hackmann