ProtoTRAK EMX Self-Training Manual

ProtoTRAK EMX Self-Training Manual
CNC 1 Training
Getting Started
What You Need for This Training Program
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This manual
3
6”x 4”x 8”HDPE
3/8”, two flute, bottom cutting end mill, 1” Length of Cut (LOC).
#3 Center Drill
1/4” drill bit and drill chuck
1
12 " parallels (2)
3/8” Edge Finder
3/8” Collet
Deburring Tool – Swivel Type
6” Ruler
6” Caliper
What We Assume You Already Know
We assume you know how to run a knee mill, know how to read a blueprint, and have at
least a little experience inputting information into a device like a digital readout or a
computer.
NOTE: It is always good practice to run your program with a tool loaded ABOVE the
vise/part to verify that the tool will not hit the vise or mounting hardware.
Terminology
X, Y, Plus (+), Minus (-)
The ProtoTRAK EMX works in the Cartesian coordinate system. This is the common
number line system that we can use to plot the location of a point in two dimensions, X
and Y. Any given point may be located exactly by plotting its position on the X and Y
axes.
For example, point A below is at point X = 2, Y = 1, or (2, 1).
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The point where the X line and the Y line cross is the (0, 0) point. This is known as
Absolute 0.
To the right of the Absolute 0 is the X plus. To the left is X minus. That is true for points
whether or not they are actually on the X line or not.
Above the Absolute 0 is Y plus, below is Y minus. Again, that is true whether the point is
actually on the Y line or not.
Absolute (ABS) and Incremental (INC)
In the previous section we saw that the absolute dimension is the point at which both X
and Y are 0. Every part we make with a ProtoTRAK EMX will have an absolute zero that
you give it. We want to put the Absolute 0 where it will make it easy to define the other
points we need to machine, so a corner or the center of a circular pattern are usually the
best.
When we program, we need to tell the ProtoTRAK EMX what the reference point is for
the numbers we put in. When your reference point is the (0, 0) we call that an Absolute
Reference. That means that the number you put in is measured from (0, 0). There is
another way to define a point and that is with Incremental dimensions.
Incremental dimensions are simply dimensions measured from the previous point.
Some Rules for Incremental Reference Positions
In the section above, it was pretty clear what was meant by an incremental move. There
are times that this is not completely clear. This occurs when you want to use
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incremental references for the first X and Y dimensioned data in a new event and the
ending point of the previous event is not obvious. For example, with a circular pocket
the ending point is not defined, what does the INC SET reference mean when
programming the next event? Since this is not always completely clear, there are some
sensible rules for what the ProtoTRAK EMX looks at in the previous event when the first
dimensioned data is entered as an INC SET.*
* For events, such as Mill, that have an X, Y beginning and an X, Y end, the second set of
data are always referenced from the first.
If the event is a:
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DRILL, then an incremental move is from the X, Y programmed in that
previous event.
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BOLT HOLE, then an incremental move is from the X CENTER, Y CENTER
programmed in that event.
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MILL, then an incremental move is from the X END, Y END programmed in
that event.
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ARC, then an incremental move is from the X END, Y END programmed in
that event.
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CIRCLE POCKET or FRAME, then an incremental move is from the first or
X1, Y1 corner programmed in that event.
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REPEAT, then an incremental move is the same as for the event types
shown above, but shifted by the programmed OFFSET.
Tool Compensation
One of the things that makes the ProtoTRAK EMX so easy to use is that you get to
program the dimensions of the finished work piece that are right on the print, instead of
the centerline of the tool. Let’s say you programmed the square shape below shown as
the solid line.
The ProtoTRAK has no way of knowing whether you want to cut a pocket out of the
material, so you want your tool to follow Path A, or if you are squaring up a block so you
want your tool to follow Path B. This is what tool cutter compensation (or cutter comp) is
about.
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Tool cutter compensation is always specified as the tool either right or left of the work
piece while looking in the direction of the tool motion.
Examples of tool right are:
Examples of tool left are:
Tool center means no compensation either right or left. That is, the centerline of the tool
will be moved to the programmed points.
Conrad (Connecting or Corner Radius)
Conrad is another really nice feature of the ProtoTRAK EMX. In the example below you
could machine a straight line from Point A to B, then an ARC with radius R from B to D,
then another straight line from D to E.
The problem is that the arc is not easy to program because you often don’t know where
point D or B, or the center of R is located. However, you may know where Point C is, or
you may be able to figure it out easily. In that case you can program the above part by
programming a straight line from A to C, tell the control when it asks that you have a
CONRAD equal to R, and then program another straight line from C to E. The
ProtoTRAK will automatically blend the connecting radius (CONRAD R) between the
two straight lines with no additional input.
For Rectangular Pockets or Frames, CONRAD stands for corner radius. You may input
any value that makes sense considering the size of the pocket and the diameter of the
tool.
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Basic Operation
Take this manual out to the machine.
Turn the ProtoTRAK EMX On
If you don’t use the ProtoTRAK for 20 minutes, its screen will go blank. This is the
screen saver. Press any key or turn the X or Y hand wheels and it will come on
immediately.
Screen Organization
Almost every screen is organized like the one below and divided into four sections. The
screen below will show a Z readout if purchased with that option.
The STATUS line is on the top. It tells you what mode of operation you are in, whether
you’re in inch or metric, if the servo motors are on, etc.
The INFORMATION area is below and is the largest part of the screen. It shows
information or data depending on what you’re doing. In DRO operation it shows the axis
readout; in Programming it shows the program; when you press LOOK in programming
it shows a picture of your part, etc.
The CONVERSATION line is below the information area. This is probably the most
important line because this is where you input all the data and this is where the
ProtoTRAK will prompt you for the information or activity that it wants.
The SOFT KEY definitions are shown in the 5 boxes on the right. These explain the
function of the 5 gray arrow keys directly to the right of each box. In this manual if we
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say press the JOG soft key, we mean press the gray arrow key to the right of the JOG
box on the screen.
Keyboard Organization
The keyboard is made up of three sections: the soft keys, the data input keys, and the
motion control keys.
The SOFT KEYS are the 5 unlabeled keys on the right side of the screen. Their function
is defined by what is written on the screen in line with the key. If there is nothing written,
then the key will not work.
The DATA INPUT keys are the number keys and the other keys close to them. The
operation of these keys is pretty obvious or will be explained in the next section. One
thing to note at this point is the difference between the INC SET and the ABS SET keys
directly above the number keys. If you are inputting an X or Y dimension it is important
to set or load this into the system with the correct key. If it is an absolute-referenced
number, press ABS SET; if it is an incremental number, press INC SET. If you are
inputting any value other than an X or Y, you may press either ABS SET or INC SET. In
this case the manual will simply say SET.
The MOTION CONTROL keys are located to the upper right of the screen and consist
of the GO, STOP and FEED keys. The FEED keys are the UP and DOWN arrows
above and below, respectively, of the soft keys.
Modes
Press the MODE function key. The screen will show:
This is how you change from one mode of operation to another. After you press the
MODE key, just press the soft key to the right of the box describing the mode of
operation you wish. If you ever get confused just press MODE to get back to this
beginning screen.
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Manual Operation
Now press the DRO soft key from the Select Mode screen above. The screen will once
again show:
Do the following:
1. Press X, ABS SET, Y, ABS SET, X INC SET, Y, INC SET. This will zero or reset
the absolute and incremental readouts.
2. Press the INC/ABS key above the 7 key. Notice the ABS on the screen changes
to INC.
3. Manually crank the X hand wheel so that the table moves left. Move the table so
that the readout is X 1.0000 INC.
4. Manually crank the Y hand wheel so that the saddle moves away from you.
Move the saddle so that the readout is Y -1.0000 INC.
5. Press X, INC SET and Y, INC SET to reset the X and Y incremental readout to
zero.
6. Move X another inch to 1.0000 INC and Y another inch to -1.0000 INC.
7. Press the INC/ABS function key to show your absolute position. That is, how far
you have moved from Step 1 above where you set absolute. X should read
2.0000 ABS, and Y -2.0000 ABS.
8. Press X, ABS SET, Y, and ABS SET to reset absolute to the position you’re at
now.
JOG
Do the following:
1. Fold up the X and Y hand wheels (pull out, and then fold up).
WARNING
Never operate the ProtoTRAK under servo motor control unless the handles are
folded into their safety position.
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2. Press the JOG soft key. The conversation line will say “Feed rate 100”. This
means the ProtoTRAK is ready to jog in the plus X or Y direction at 100 inches
per minute (since you are in INCH mode).
3. Press and hold X. The table moves to the left at 100 ipm. Release the X key to
stop.
4. Press and hold Y. The table moves towards you. Release.
5. Press the +/- key. Notice the “Feed rate 100” in the conversation line changes to
“Feed rate -100”.
6. Press and hold X. The table now moves right. Release.
7. Press and hold Y. The saddle now moves away. Release.
8. Press the DOWN arrow key. Notice the “Feed rate -100” changes to “Feed rate 90”. Press the DOWN arrow key several more times.
9. Press and hold X. Notice the table moves slower. Release.
10. Press the UP arrow key several times until you are back to “Feed rate -100”
11. Press number key 9 and ABS SET. Notice that the conversation line now says
“Feed rate -9.0”. It took 9% of the current federate displayed.
12. Press either X or Y. The table or saddle now moves at 9 ipm. This is the way to
get low feed rates for power feeding straight cuts in X or Y.
13. If you press the X or Y key on the DRO and simultaneously press the start button
of the remote you can let go of the DRO button and the table will continue to
move until you release the remote button.
14. Press the RETURN soft key to exit jog operation and go back to manual.
Return to Absolute Zero
Do the following:
1. Make sure the readout is displaying absolute (ABS). If not, press the INC/ABS
key.
2. Move the hand wheels to make sure you’re not at zero.
3. Press the RETURN ABS 0 soft key.
4. Press GO. The table and saddle will automatically move to the absolute zero
you set earlier.
Teach
Teach allows you to machine a part by hand and command the ProtoTRAK EMX to
remember the tool positions. This “taught” program can then be run for subsequent
parts.
Imagine you have this simple job:
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Drill the 2 1/4 inch holes
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Mill 1/4 inch slot
1. Set ABS 0 over the bottom left
corner and make sure the table in
X and Y is positioned so they are
near the center of their travel.
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2. Press TEACH.
3. Press INC/ABS (or not) to get into ABS readout.
4. Using the hand wheels, move the table to X=1.0000 abs, Y=1.0000 abs. This is
the position of the first hole.
5. Press POSN DRILL.
6. Move the table to X=2.0000 abs, Y=1.0000 abs. This is the second hole.
7. Press POSN DRILL.
8. Move the table to X=1.0000 abs, Y=2.0000 abs. This is the beginning of the slot.
9. Press MILL BEGIN.
10. Move the table to X=2.0000 abs, Y = 2.0000 abs. This is the end of the slot.
11. Press MILL END.
12. You have now “taught” the program.
13. Press END TEACH. The events that you “taught” are now in the current
program. To edit the events (which is required to select the tool numbers and set
the feed rate of the mill event) press MODE and then PROG. To go to the
beginning of the current program, press GO TO BEGIN.
14. Press DELETE EVENT until TEACH POSN is the title of EVENT 1 (if there was
no program already loaded, this will not have to be done).
15. Press the DOWN ARROW until TOOL # is selected. Press ABS SET to give it
the default number (or if you had a specific tool number, input it here).
16. With the TOOL DIA selected, press ABS SET to give it the default value (since
this a position event, no offsets are required).
17. The second position event should now appear in the right window pane. Press
the DOWN ARROW until TOOL # is highlighted. Press ABS SET. Press ABS
SET again to give the TOOL DIA the default value.
18. The mill event should now appear in the right window pane.
19. Press the DOWN ARROW to select TOOL OFFSET.
20. Press 0 for CENTER, ABS SET. You have now told the program that the
programmed locations are for the center of the cutter.
21. Press 6 to change the feed rate, and press ABS SET.
22. Press 2, ABS SET to change the tool number.
23. Press ABS SET again to give TOOL DIA the default value (since the OFFSET is
CENTER, no actual offset will be calculated).
24. Press 2, ABS SET to say that the mill event does not continue.
25. You have now given the program enough information to run.
26. Press MODE.
27. Press RUN, START, and GO. The conversation line will tell you to load the
specific tool number and to start the spindle. At this point, the X and Y hand
wheels are under servo motor control and cannot be moved by hand.
28. Press GO and the table will move to the first hole position and the conversation
line will read “SET Z”. This is where you lower the quill in order to drill the
desired hole.
29. Press GO. The table moves to the second hole position.
30. Pres GO. The table moves to the beginning of the slot. The conversation line
will then prompt you to change your tool (this is where you load your end mill)
and SET Z.
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31. Press GO. The table moves to the end of the slot at 6 inches per minute.
32. Press GO and the conversation line will read RUN OVER at which point the CNC
program has reached its end.
33. Press MODE to exit out of the CNC mode and regain manual control over the X
and Y hand wheels.
Sample Part 1
The purpose of this sample is to demonstrate most of the various event types or canned
geometry’s that can be programmed. Also to give you practice inputting data and
running an actual\
NOTE: It is always good practice to run your program with a tool loaded ABOVE the
vise/part to verify that the tool will not hit the vise or mounting hardware.
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Program Strategy
If you wish to place the part in the vise before programming consult section Set up the
Part Reference. Before programming a part, it’s important to figure out what you want
to do and what order you want to do it.
The strategy for programming a ProtoTRAK EMX is pretty straightforward:
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Identify the geometry you want to machine from the print
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Select it on the control
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Answer the questions
Our plan for Sample Part 1 is:
1. Decide that the lower left corner of the part will be our absolute zero or absolute
reference and enter the absolute zero location.
2. Drill the left most hole in the row using a Drill Event.
3. Drill the next 3 holes using a Repeat Event.
4. Drill the 8-hole bolt circle pattern using a Bolt Hole Event.
5. Mill the diagonal in the upper left corner using a Mill Event.
6. Mill the arc in the lower left corner using an Arc Event.
7. Mill the circular pocket with a Pocket Event.
8. Mill the through rectangle with a Frame Event.
Making and Inputting the Program
Press MODE and then press PROG soft key to enter the Program Mode.
The Program Part Number
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The conversation display says, “Program Name”. Input 123, SET (INC SET or
ABS SET). If there is a program already in the current memory, you can erase
it by pressing Erase in the Prog In/Out Mode before entering the program
number.
Event 1 – Center Drill the First Hole
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The conversation says, “Select an Event”. You press POSN/DRILL soft key.
Now, press ONE to select the single hole.
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The right side of the information area shows that Event 1 is a Position/Drill
and it lists what data is required. But keep your eye on the conversation line.
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Conversation says, “X END”. You press 2.75, ABS SET. Remember the lower
left corner is our Absolute zero.
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“Y END”. You press .75, ABS SET.
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“TOOL #”. You press 1, ABS SET.
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Tool number 1 is the center drill, so diameter is not important, press ABS
SET.
Event 2 – The Next 3 Holes
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“Select an Event”. You press the SUB soft key, and then the REPEAT soft
key for Event 2 to make the next 3 holes in the row.
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Event 2 is a Repeat Event and the data needed is shown on the right of the
information area. Notice Event 1 has shifted to the left.
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“First Event #”. You press 1, ABS SET because we want to repeat Event 1.
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“Last Event #”. You press 1, ABS SET because the only event we want to
repeat is Event 1.
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“X Offset”. You press .75, INC SET because that’s the distance between the
holes in the X direction.
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“Y Offset”. You press 0, INC SET because the other holes are not shifted in
the Y direction.
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“# Repeats”. You press 3, ABS SET because we want 3 more holes each
offset .75 inch.
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“Tool #”. You press 1, ABS SET because we’re using the same tool.
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"Tool Dia". You press ABS SET because we don't want to change the
diameter for this tool.
Event 3 – The Bolt Hole Pattern
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“Select an Event.” You press POSN DRILL, then the BOLT HOLE soft key for
Event 3.
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Event 2 has shifted to the left and the data you need to input is shown on the
right.
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“# Holes”. You press 8, ABS SET because there are 8 holes.
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“X CENTER”. You press 1.5, ABS SET.
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“Y CENTER”. You press 2.5, ABS SET.
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“Radius”. You press 1., ABS SET because the radius of the bolt hole pattern
is 1.000 inch.
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“Angle”. You press 90., ABS SET. This is the angle measured in the
counterclockwise direction from 3:00 o’clock to the first hole you want to drill.
We could have input 0 and then we would drill the right most hole first.
Instead we are going to drill the top/highest hole first.
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“Tool #”. You press ABS SET. We’re still using tool number 1, but notice we
didn’t press the 1. If you don’t input a number, the ProtoTRAK assumes the
last tool is used again.
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"Tool Dia". You press ABS SET.
Event 4- Sub Repeat to drill holes after center drilling
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“Select an Event”. You press the SUB soft key, and then the REPEAT soft
key for Event 4 to drill all the holes you have just center drilled.
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“First Event #”. You press 1, ABS SET because we want to repeat Event 1.
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“Last Event #”. You press 3, ABS SET because the only event we want to drill
all the holes we have center drilled.
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“X Offset”. You press 0, INC SET because the holes to be drilled are in the
same position.
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“Y Offset”. You press 0, INC SET because the other holes are not shifted in
the Y direction.
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“# Repeats”. You press 1, ABS SET. If you wanted to countersink the holes
you are drilling press 2, ABS SET. This would enable all the holes drilled to
be immediately countersunk as well.
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“Tool #”. You press 2, ABS SET because we’re using a different tool.
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"Tool Dia". You press .25 ABS SET since the diameter of the drill bit is ¼.”
Event 5 – The Upper Left Diagonal
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“Select Event”. You press MILL soft key for Event 5.
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“X Begin”. You press 0, ABS SET to define the beginning of the milling cut at
its lower left point on the diagonal.
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“Y Begin”. You press 3.25, ABS SET to define the beginning of the milling cut.
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“X End”. You press .5, ABS SET to define the end of the milling cut.
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“Y End”. You press .75, INC SET to define the end of the milling cut. Notice
we defined this as an incremental change of .75 inch from the beginning. We
could have also input 4.0, ABS SET to also define the end point. Think about
this and make sure you understand.
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“CONRAD”. You press ABS SET because we don’t want to blend this mill cut
into another cut.
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“Tool Offset”. You press 2, ABS SET because you’re selecting that the tool is
to the left of the work piece as it moves from beginning to end.
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“Feed rate”. You press 5. , ABS SET to mill at 5 inches per minute.
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“Tool #”. You input 3, ABS SET because we’re calling the 3/8 end mill tool
number 3.
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"Tool Dia." You press .375 ABS SET.
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“Continue”. You input 2, ABS SET because this is not continuous path milling.
Event 6 – The Lower Left Radius
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“Select Event”. You input soft key ARC for Event 6.
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“X Begin”. You input 0, ABS SET because we’re going to start at the top and
mill down and to the right.
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“Y Begin”. You input .5, ABS SET.
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“X End”. You input .5, ABS SET.
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“Y End”. You input 0, ABS SET.
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“X Center”. You input .5, ABS SET, or we could have input 0, INC SET since
the X Center is the same as the X End.
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“Y Center”. You input .5, ABS SET.
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“CONRAD”. You input 0, ABS SET.
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“Direction”. You input 2, ABS SET because we are milling in a
counterclockwise direction.
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“Tool Offset”. You input 1, ABS SET because looking from beginning towards
end (the direction of the tool cut) the tool is to the right of the work piece.
Think about this to be sure you understand.
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“Feed rate”. You input 5., ABS SET.
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“Tool #”. You input 3, ABS SET because that’s still our tool.
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"Tool Dia". You input .375 ABS SET (or ABS SET).
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“Continue”. You input 2, ABS SET because this is not a continuous milling
path.
Event 7 – The Circular Pocket
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“Select Event”. You press POCKET FRAME soft key for Event 7.
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“Select”. You press CIRCLE PCKT soft key because our pocket is circular.
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“X Center”. You press 1.5, ABS SET.
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“Y Center”. You press 2.5, ABS SET.
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“Radius”. You press .75, ABS SET defining the radius of the pocket.
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“Direction”. You press 1, ABS SET to select clockwise tool motion. We could
have just as easily selected counterclockwise.
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“Fin Cut”. You press .02, ABS SET to select a finish cut of .020 inches. When
machining, the program will hog out the pocket .020 undersized then make a
finish cut pass to the proper size.
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“Feed rate”. You press 8., ABS SET.
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“Fin Feed rate”. You press 8., ABS SET (the finishing feed rate doesn’t have
to be the same as the roughing feed rate).
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“Tool #”. You press ABS SET.
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"Tool Dia". You press ABS SET.
Event 8 – The Through Rectangle
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“Select Event”. You press POCKET FRAME soft key for Event 8.
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“Select”. You press RECT PROFILE soft key for the rectangular frame.
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“X1”. You press 3.75, ABS SET which is the distance to corner number 1,
which we will say is the lower left corner of the frame.
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“Y1”. You press 1.75, ABS SET.
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“X 3”. You press 1.5, INC SET because corner number 3 is the diagonal
corner and it is 1.5 inches in the plus X direction from X1.
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“Y3”. You press 1.25, INC SET.
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“CONRAD”. You press .3, ABS SET because the corner radius of the frame is
.300 inch.
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“Direction”. You press 2, ABS SET to choose counterclockwise.
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“Tool Offset.” You press 2, ABS SET because when the tool moves
counterclockwise around the inside of the rectangle frame, it is to the left of
the work piece.
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“Fin Cut”. You press .03, ABS SET to select a .030 inch finish cut.
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“Feed rate.” You press 5., ABS SET.
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“Fin Feed rate.” You press 5., ABS SET.
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“Tool #”. You press ABS SET because we’re still using tool number 3.
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"Tool Dia". You press ABS SET.
Look at the Program
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Press the LOOK hard key to see what your program looks like. You don't
have to finish the programming to see what you've done so far. Any time you
see the SELECT EVENT prompt in the Program Mode, you can look at the
part graphics.
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The drawn part should look like this:
If your part draw doesn’t look like this, don’t panic. See if you can figure out what piece
of geometry, and therefore what event looks wrong. Go back to that part of your
program and check your inputs against these instructions.
If the ProtoTRAK refused to draw your part and indicated a data error, read the
explanation and solution and it will suggest the way to resolve the problem.
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Press RETURN. The program is complete
Program In/Out Mode
Now that we have a good program we want to save it. If you turn the ProtoTRAK off
now the program will be lost. To prevent this, we will save it on the system’s hard drive
where it will stay (even without power) until you consciously erase it.
Do the following:
1. Press the MODE and select the PROG IN/OUT soft key.
2. Put in a part number you will remember at this time. You press SAVE soft key
and wait a few seconds until it’s complete. Notice your new part number is now in
the list.
3. Also notice that the current program name is listed at the top of the screen in the
status bar.
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Program Run Preparation
Setup the Work piece
Take a piece of 6” x 4” x 3/8” HDPE and lock it into the vise as shown below. Use step
jaws or parallels. Make sure the material sticks out to the left of the vise by about 1 1/2
inches.
Set up the Part Reference
1. Press MODE and select DRO soft key.
2. Press INC/ABS to be sure the display reads the absolute position (ABS).
3. X and Y ABS SET should be used to zero the DRO. Use the edge finder to
position the center of the spindle over the lower left corner of your part. Run
the edge finder at 600 – 800 rpms.
4. The read out should display X 0.0000 ABS and Y 0.0000 ABS when the
spindle is over the lower left corner.
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Program Run
NOTE: It is always good practice to run your program with a tool loaded ABOVE the
vise/part to verify that the tool will not hit the vise or mounting hardware.
This is where we make the part. Do the following:
Enter the Run Mode

Press MODE and select RUN soft key.

The conversation line says, “Select”. You press START soft key. The START
EVENT # soft key allows you to start in the middle of a program, but we don’t
want to do that.

Press GO, and the saddle will move to the first hole location.
Center Drill the Holes

“Load Tool 1”. You should load the center drill in the spindle, then start the
spindle, and adjust the RPM.

X and Y readouts should read zero ABS. Beneath them the actual federate
(now zero), and the feed rate override percent (now 100%) are shown.

Press GO. The tool will move (actually the table moves) to the first hole in the
row.

“Set Z”. You move the quill and center drill the hole. After every drilling
operation always make sure the tool is up to clear the work piece.

Press GO and drill the remaining holes and in the bolt hole pattern each time
the conversation line says “Set Z”.
Drill the Holes

“Load Tool 2 Dia .25” You should load the .25” Drill in the chuck, then start
the spindle, and adjust the RPM.

Press GO. The tool will move (actually the table moves) to the first hole in the
row.

“Set Z”. You move the quill and drill the hole to a depth of 0.125”. After every
drilling operation always make sure the tool is up to clear the work piece.

Press GO and drill the remaining holes and in the bolt hole pattern each time
the conversation line says “Set Z”.
18
Mill the Upper Left Diagonal

When the last hole is drilled the conversation line says, “Load Tool 3 Dia
.375”. You should stop the spindle, load the 3/8 end mill, start the spindle and
adjust the RPM.

Press GO. The tool will move to the upper left edge of the part where the
diagonal cut begins.

“Set Z”. You move the quill so the tool is 0.125” below the top of the work
piece. Do this by setting the quill stop within 1-2” of the top, bring the quill
down on top of the stop, and lock the quill at this position. Touch off the end
mill on top of the piece by making a chip. Set the Z to 0, and then move the Z
axis until you are -.125”.

Press GO. The tool will move at 5 ipm and cut the diagonal.

“Check Z”. This is a warning to raise the quill because the next move will be
at rapid speed (100 ipm). You should raise the tool.
Mill the Lower Left Radius

Press GO. The tool will rapid to the beginning position for the Arc cut.

“Set Z”. Lower the tool to 0.125” and lock the quill.

Press GO. The tool will move at 5 ipm and cut the arc.

“Check Z”. You should raise the tool.
Mill the Circular Pocket

Press GO. The tool will rapid to about the center of the pocket.

“Set Z.” Bring the tool down (or the knee up) to .125” below the top of the part
and lock the quill.

Press GO. The tool will move at 8 ipm to machine the pocket. Press the
FEED - and FEED + keys while cutting the pocket to see how you can adjust
the speed while you’re cutting. When the pocket is roughed out a little
undersized, the cutter will automatically make the program .020 finish cut.

“Check Z”. You should raise the tool.
Mill the Rectangle

Press GO. The tool will rapidly move to the beginning point to machine the
rectangular frame thru.

“Set Z”. Move the quill down so that the tool is 0.125” below the top of the
piece. Lock the quill.

Press GO. The tool will move at 5 ipm (if you left the feed rate override at
100% when you adjusted FEED - and FEED ¯ ) to machine the rectangle and
make the finish pass.
19

“Run Over”. The part is finished. If you were making a second part and could
locate it in the vise in the same place, you could now press the NEXT PART
soft key and the whole program would be repeated.

Press MODE to exit Run. Congratulations. You made your first part!
20
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