EZ-MAKER USER MANUAL - EZ3
EZ- MAKER USER MANUAL
ES- 200 & ED- 200
EZ3- India
EZ- MAKER (ES- 200 & ED- 200) User Manual
by EZ3- India
Permission is granted to copy, distribute and/or modify this document
under the terms of the Creative Commons Attribution 4.0 International
Public License (CC BY- SA 4.0).
For more information, go to www.ez3.in
Contents
WARNINGS
Safety Information
Read Me First!
Hazards and Warnings
1 Setup Your Printer
2 3D Printer Software
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27
Table of Contents
Read Me First! ........................................................................................ 10
Hazards and Warnings ........................................................................... 10
Electric Shock Hazard ............................................................................... 10
Burn Hazard .............................................................................................. 10
Fire Hazard ................................................................................................ 10
Pinch Hazard ............................................................................................. 10
Static Charge ...............................................................................................1
Age Warning ................................................................................................1
2.1 Software Overview ............................................................................... 3
2.2 Drivers ................................................................................................... 3
2.3 Repetier-Host ......................................................................................... 3
Loading Configurations.................................................................................4
Loading STL files .........................................................................................5
Export Gcode files .......................................................................................5
More on Repetier ..........................................................................................5
2.4 Connect................................................................................................. 6
Connecting the Printer ................................................................................6
Printer Controls ............................................................................................7
Loading Print Files.......................................................................................9
2.5 CAD and 3D Modeling Software.................................................... 10
FreeCAD..................................................................................................... 10
Blender........................................................................................................ 10
Shapesmith.................................................................................................. 10
OpenSCAD .................................................................................................. 10
3.1 Intro ...................................................................................................... 12
Overview ..................................................................................................... 12
Goals & Philosophy .................................................................................... 12
Donating...................................................................................................... 12
3.2 Getting Slic3r ..................................................................................... 13
Downloading ............................................................................................... 13
3.3 First Slice ............................................................................................ 14
Configuration Wizard .................................................................................. 14
The Important First Layer ........................................................................ 19
Working with Models ................................................................................. 30
First Print ................................................................................................... 35
3.4 Expert Mode....................................................................................... 35
Speed........................................................................................................... 35
Infill Patterns and Density......................................................................... 37
Infill Optimization ...................................................................................... 42
Fighting Ooze ............................................................................................. 43
Skirt............................................................................................................. 45
Cooling ........................................................................................................ 46
Support Material ........................................................................................ 49
3.5 Configuration Organization .............................................................. 51
Exporting and Importing Configuration ................................................... 51
Profiles......................................................................................................... 52
4.1 Loading Print Material………………………………………………...…53
5.1 Your First Print ................................................................................... 92
Set Temperature…………………………………………………………………….92
Inserting Filament Into the Extruder .................................................. 92
Home Printer ....................................................................................... 92
Z Print Height ..................................................................................... 94
Remove Part......................................................................................... 95
6.1 Overview .............................................................................................. 98
Smooth Rods........................................................................................ 98
PET Sheets .......................................................................................... 98
Hobbed Bolt ......................................................................................... 99
Hot End ................................................................................................ 99
Electronics ............................................................................................. 99
7.1 Intro .................................................................................................... 102
Changing nozzles ................................................................................ 102
ABS/Acetone Glue ............................................................................ 103
8.1 Support .............................................................................................. 106
Community.......................................................................................... 106
Glossary ....................................................................................... 115
List of Figures
2.1
2.2
2.3
2.4
Repetier application, STL to Gcode generator ························· 29
Repetier application for 3D printer control ···························· 31
Repetier controls ······························································ 32
Repetier viewer ································································ 34
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
Configuration Wizard: Welcome Screen ································ 41
Configuration Wizard: Firmware Type ·································· 42
Configuration Wizard: Bed Size ··········································· 43
Configuration Wizard: Nozzle Diameter ································ 44
Configuration Wizard: Filament Diameter ····························· 45
Configuration Wizard: Extrusion Temperature ························ 46
Configuration Wizard: Bed Temperature ······························· 47
Configuration Wizard: End ················································ 48
Simple Mode: Print Settings. ·············································· 51
Creating a vase from a solid model. ······································ 52
An example of support material. ·········································· 53
List of Figures
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
3.23
3.24
3.25
3.26
3.27
3.28
3.29
3.30
3.31
3.32
3.33
3.34
3.35
3.36
3.37
3.38
3.39
3.40
3.41
3.42
An example of brim. ·······························································54
Simple Mode: Filament Settings. ··············································55
Simple Mode: Printer Settings. ················································· 57
Shapesmith online CAD tool. ··················································· 61
Virtual Bed ············································································62
EZ3 Logo model. ····································································63
STL file loaded.······································································63
Expert mode speed options. ·························································· 67
Infill pattern settings·························································· 69
Infill pattern: Line (344.51mm / 5m:20s) ··························· 69
Infill pattern: Rectilinear (350.57mm / 5m:23s) ··················· 69
Infill pattern: Concentric (351.80mm / 5m:30s) ··················· 70
Infill pattern: Honeycomb (362.73mm / 5m:39s) ·················· 70
Infill pattern: Hilbert Curve (332.82mm / 5m:28s) ················ 70
Infill pattern: Archimedean Chords (333.66mm / 5m:27s) · · · 70
Infill pattern: Octagram Spiral (318.63mm / 5m:15s) ············ 71
Infill pattern comparison in a complex object. Left to Right:
honeycomb, line ································································ 71
Infill patterns at varying densities.
Left to Right: ··· 72
Infill advanced settings ····························································73
Retraction settings. ·································································74
Skirt settings. ·········································································76
Cooling strategy. ···································································· 77
Cooling advanced settings. ···························································· 79
Support structure options. ························································80
Minimug model, tilted 45◦ . ··················································· 81
Support infill pattern: Rectilinear ··············································· 81
Support infill pattern: Rectilinear Grid ··································· 81
Support infill pattern: Honeycomb ······································· 82
Example of pattern angle rotated 45◦ . ········································82
Saving a profile. ·····································································84
Deleting a profile. ···································································84
4.1
4.2
4.3
4.4
5.1
5.2
Filament spool mount parts ················································ 88
Filament spool mount front ················································· 89
Filament spool mount back ····················································· 89
Filament run through the guide ············································ 90
Nozzle height ·············································································· 94
First layer adhesion ································································ 95
WARNINGS
Safety Information
WARNING!
Read Me First!
READ THIS MANUAL COMPLETELY BEFORE UNPACKING
AND POWERING UP YOUR PRINTER.
Hazards and Warnings
The EZ-MAKER printer has motorized and heated parts. When the
printer is in operation always be aware of possible hazards.
Electric Shock Hazard
Never open the electronics case when the printer is powered on. Before
removing the electronics case cover always power down the printer and
completely turn off and unplug the power supply and allow the power
supply to discharge for at least 1 minute.
Burn Hazard
Never touch the extruder nozzle or heater block without first turning off
the hot end and allowing it to completely cool down. The hot end can
take up to twenty minutes to completely cool. Also, never touch recently
extruded plastic. The plastic can stick to your skin and cause burns. Also
beware of the heated bed which can reach high temperatures capable of
causing burns.
Fire Hazard
Never place flammable materials or liquids on or near the printer when
powered or in operation. Liquid acetone and vapours are extremely
flammable.
Pinch Hazard
When the printer is in operation take care to never put your fingers in the
moving parts including the belts, pulleys, or gears. Also, tie back long hair
or clothing that can get caught in the moving parts of the printer.
HAZARDS AND WARNINGS
Static Charge
Make sure to ground yourself before touching the printer, especially the
electronics. Electrostatic charge can damage electronic components. To
ground yourself touch a grounded source.
Age Warning
For users under the age of 18, adult supervision is recommended.
Beware
of
choking
hazards
around
small
children
3D Printer Software
3D Printer Software
2.1
Software Overview
EZ3-India, the maker of the EZ-MAKER completely supports free/libre
hardware and software. it has been tested to work with 100% free software. To
operate your desktop 3D printer you will need to install a few software packages
onto your PC. You will need a 3D printer host, an .STL to .gcode generator, and
optional CAD or 3D modeling software.
All of the following free/libre software is available for GNU/Linux, Windows,
and Apple OS X..
The required software can be found in the Support/Downloads section at
http://www.ez3.in/. You will also find instructions there for installing each program
onto your PC. You can also find downloads specific to the EZ-MAKER on the
product page.
2.2
Drivers
You will need to install device drivers in order for your Windows computer to
communicate with the EZ-MAKER.
If you are using your 3D Printer on a Linux/Apple OS X based computer
you will not need any drivers- support is already built into the operating system.
Windows Driver Downloads: www.ez3.in/downloads
2.3
Repetier-Host
Website: http://www.repetier.com/
Repetier-Host software is the first tool in the chain of 3D printing software(Fig.
2.1).
Repetier-Host uses commonly used .STL files to create .gcode files. Gcode files
contain instructions for the 3D printer on where, when, and how fast to make
movements. However, Gcode programming is not very suitable for CAD and 3D
design. This is where Repetier-Host and the .STL file comes into use. The .STL
file is a 3D model file that can be exported by all common CAD
2.3. REPETIER
Figure 2.1: Repetier-Host application, STL to Gcode generator
and 3D modeling software. The Repetier-Host software then slices the
.STL 3D model into layers and print paths to create a 3D printable .gcode
file.
Repetier-Host includes very simple settings that allow you to easily refine
prints. You can create multiple configurations for changing printer setups
including nozzle sizes and desired print resolution. For ease of use we have
pre-defined Repetier-Host profiles available in the Downloads section
Download the configurations to your Repetier-Host directory. We highly
recommend starting with our pre-defined profiles for your first couple prints
atleast.
Loading Configurations
To load configurations press the Load Config... button. In the file
browser that opens, locate the downloaded configuration files. Select
the configuration file that matches the nozzle size currently installed on
3D Printer Software
the printer (0.4mm nozzle is installed by default). Press Open and the
pre-defined configuration will load into Repetier-Host. You can also save
custom configurations for yourself by pressing the Export Config...
button. A file browser will open that allows you to define a name and
save your custom configuration.
Loading STL files
To load an .STL 3D model file into Repetier, activate the Object
Placemet tab and click the Add... button. In the file browser navigate to
the .STL you wish to load and click Open. The silhouette of the model
will appear in the viewer. To print more than one copy of the model at a
time select the model name from the list and click the More button. With
each press of the More button an additional copy of the model will be
added. To remove a copy of the model select the model name again and
click Less. To completely remove the model from viewer select the
model name and click Delete.
Export Gcode files
Once you have finished setting your part(s), you can generate the
Gcode by clicking Slicer > Start Slicing.... In the file browser navigate to
where you would like to save the .gcode file and list a name to save the
file as. Click Save and Repetier will begin generating the .gcode file.
When Slicer is finished you will receive a prompt. If you have created a
plate with multiple model designs you can also use the Export STL...
function to save an
.STL file for quickly reproducing the same plate of models.
More on Repetier
The above is a summarized explanation to quickly get you started slicing
models and printing. For more in depth information on Repetier-Host
including specific installation instructions see the chapter, Slic3r in
Depth.
2.4. Connection
2.4
Connect
The host software, Repetier-Host, is used to start up and control your
3D printer (Fig. 2.2). It has the Slic3r inbuilt to generate the gcode.
Figure 2.2: Repetier application for 3D printer control
The host controls include: setting the extruderand print surface
temperatures, manual control of each axis, and manual extrusion. The
host is also where you will push print files (.gcode) to the 3D printer for
printing out model designs.
To launch Repetier, navigate to the Repetier directory and launch the
exe. On GNU/Linux operating systems you may need to set the
Repetier file as executable.
On other operating systems the file may be called Repetier.exe.
Connecting the Printer
To start up the printer, first you will need to connect to the printer with
Repetier. Make sure you have connected the USB cable from your PC to the
printer before launching Repetier. If not, close Repetier, connect the USB
cable, and relaunch Repetier. In the top “Config” pull down menu select the
correct port for the printer. On other operating systems the port may be
named such as COM1 or tty.usbserial-USB-ID. If you only have one
printer connected there will only be one port available to select.
3D Printer Software
Now, to connect to the printer click the Connect button. In the text output
window you will see multiple return lines. If you see Printer is now online
you have successfully connected to the printer. The printer control
buttons (Manual Control TAB) on the right will also darken and become
click-able after connecting. When you need to disconnect the printer
simply press the Disconnect button.
Printer Controls
All of the printer controls can be found on the right side of the Repetier
interface (Fig. 2.3). To set the hot end and print surface
Figure 2.3: Repetier controls
temperature use the input funtions. The printer temperature bars and
graph are under “Temparature Curve” TAB. The hot end and print
surface controls are labeled Extruder and Bed. Select the temperature
setting by using the pull down menu for pre-defined temperature settings.
You can also set custom temperature settings by typing into the
temperature box.
To turn on the hot end and/or printer surface click the respective buttons.
The Set button will highlight orange when the temperature is set to ON
for that component. When the hot end or print surface is set to ON you
will see the temperature bar and graph display the set temperature and
the current temperature. When both components have reached the
correct temperature, the printer is ready for printing.
Above the temperature controls are the manual extrusion controls. There
you can manually extrude plastic through the hot end and retract the
plastic filament from the hot end. The Extrude button will feed the
amount of plastic, set to the right in mm, through the hot end. The rate at
which the plastic is fed is set below the extrusion length (mm/min). The
Reverse button will perform the opposite of Extrude, pulling the plastic
filament back out of the hot end.
The large pattern of buttons above the temperature controls are the axes
manual controls. These functions allows you to manually move each of
the three axes of the printer. The circular pattern of four quadrants
controls the X and Y axes. The top and bottom quadrants move the Y
axis; the top in the positive direction (forward) and the bottom in the
negative direction (back). The left and right quadrants move the X axis;
the left in the negative direction (left) and the right in the positive
direction (right).
Each quadrant is split into four sections that control the length of
movement of 0.1mm, 1mm, 10mm, or 100mm. The innermost section
moves the axis 0.1mm with each section outwards a larger movement
with the outside section moving the axis 100mm.
The linear control bar to the right controls the Z axis. The Z axis is also
separated into multiple movement lengths; 0.1mm, 1mm, and 10mm.
The upper three buttons move the Z axis up and away from the printer
surface; the three lower buttons move the Z axis closer to the print
surface.
The four triangular buttons around the circular pattern are the axes
home buttons. Each home button will move that axis in the negative
direction until the end stop is activated. There is a home button for the X,
Y, and Z axes. There is also a white home all button that homes all of
the axes at once.
The Motors off button will deactivate all motors allowing all of the axes to
be moved by hand.
Caution: when homing, the axis will continue to move in the negative
direction until the end stop switch is activated. If the printer is ever
3D Printer Software
Transported make sure the end stop switches are clear before resuming
printing. If an axis has missed an end stop and is continuing to try to
move in the negative direction, immediately turn the power switch to the
off position. If a print file was running, after turning the power switch to
off, Clear whatever is blocking the end stop and try homing again.
Loading Print Files
To load a .gcode file into Repetier click the Load file button. Navigate to
the .stl/gcode file in the file browser and click Open. You will now see a
3D image of your model design in the viewer (Fig. 2.4). Click the
“Preview” viewer window to see a more detailed version
Figure 2.4: Repetier Viewer
of the sliced model. In the Gcode viewer you can zoom in using the
mouse scroll wheel and flip through layers with the up and down arrow
keys. To pan within the window left-click and drag to move around the
work plane. The lines shown in the Gcode viewer represent the path the
extrusion nozzle will follow to print the model.
2.4. CAD AND 3D MODELING SOFTWARE
2.5
CAD and 3D Modeling Software
Currently EZ3-India is not distributing a CAD or 3D modeling software
package. However, there are multiple free/libre software packages available.
Other common non-free CAD and 3D modeling software are also capable of
exporting the required .STL files.
On some CAD and 3D modeling software you will need to select
millimeters as the output unit. If possible it is best to build your 3D
design in metric units rather than imperial units. Repetier requires .STL
files sized in millimeters. If an .STL with inches as units is loaded into the
Repetier, the model will be scaled much smaller than expected. The
software listed below outputs millimeters as the unit by default.
FreeCAD
Website: http://free-cad.sourceforge.net
FreeCAD is a great free/libre CAD application. Containing a full GUI for
building CAD models, FreeCAD is capable of creating simple to complex
designs. STL files can also easily be exported for use with 3D printing.
FreeCAD is available for GNU/Linux, Windows, and Mac. The latest
development version is recommended.
Blender
Website: http://blender.org
The most widely used Free/Libre 3D modeling software, Blender is well
documented with tutorials available on the Blender.org website. Numerous
video tutorials can be also found online.
Shapesmith
Website: http://shapesmith.net
Shapesmith is a web based 3D modeling software. This means there is no
required software to get started designing models. Shapesmith is also a
great choice for anyone just starting out in CAD/ 3D modeling.
OpenSCAD
Website: http://openscad.orgpesmith.net
OpenSCAD is another free/libre CAD software; however, different than
FreeCAD, it is script based. Rather than using a GUI to generate CAD
designs, OpenSCAD CAD designs are created using script based
renderings.
Slic3r in Depth
Slic3r in Depth
3.1
Intro
Overview
Slic3r is a tool which translates digital 3D models into instructions that are
understood by a 3D printer. It slices the model into horizontal layers and
generates suitable paths to fill them.
Slic3r is already bundled with the many of the most well-known host
software packages: Pronterface, Repetier-Host, ReplicatorG, and can be
used as a standalone program.
This manual will provide guidance on how to install, configure and utilize
Slic3r + Repetier in order to produce excellent prints.
Goals & Philosophy
Slic3r is an original project started in 2011 by Alessandro Ranellucci (aka.
Sound), who used his considerable knowledge of the Perl language to create a
fast and easy to use application. Readability and maintainability of the
code are among the design goals.
The program is under constant refinement, from Alessandro and the other
contributors to the project, with new features and bug fixes being
released on a regular basis.
Donating
Slic3r started as a one-man job, developed solely by Alessandro in his
spare time, and as a freelance developer this has a direct cost for him. By
generously releasing Slic3r to the public as open source software, under the
GPL license, he has enabled many to benefit from his work.
The opportunity to say thank you via a donation exists. More details can
be found at: http://slic3r.org/donations.
3.2. GETTING SLIC3R
3.2
Getting Slic3r
Slic3r is Free Software, and is licensed under the GNU Affero General Public
License, version 3.
Downloading
Slic3r can be downloaded directly from: http://slic3r.org/download.
Pre-compiled packages are available for GNU/Linux, Mac OS X and
Windows. GNU/Linux and Windows users can choose between 32 and 64 bit
versions to match their system.
Repetier can be downloaded from http://www.repetier.com/downloads/.
Source
The source code is available via github: https://github.com/alexrj/Slic3r
Slic3r in Depth
3.3
First Slice
EZ3-India provides ready-made Slic3r profiles for immediate use to get
printing quickly.
Once you have become familiar with your printer and the software you
may want to make your own profiles with slight adjustments for particular
designs.
Configuration Wizard
Slic3r has two features to aid newcomers: the configuration wizard, and
simple mode.
Sometimes it is nice to have a helping hand when starting out with new
software. The configuration wizard asks a series of questions and creates
a configuration for Slic3r to start with.
1. Firmware Type
The gcode produced by Slic3r is tailored to particular types of firmware.
The first step prompts for the firmware that the printer uses. This has
been specified when the printer was built.The EZ-MAKER uses the
RepRap (Marlin/Sprinter) gcode type.
Figure 3.2: Configuration Wizard: Firmware Type
3.3. FIRST SLICE
2. Bed Size
This setting defines the maximum distance the extruder may travel along
the X and Y axis.
The dimensions for EZ-MAKER are 200x200.
Figure 3.3: Configuration Wizard: Bed Size
3. Nozzle Diameter
The diameter of the hot-end nozzle is 0.4 mm for the EZ-MAKER.
.
Figure 3.4: Configuration Wizard: Nozzle Diameter
3.3. FIRST SLICE
4. Filament Diameter
For Slic3r to produce accurate results it must know as accurately as
possible how much material is pushed through the extruder. Therefore it
is vital to give it as precise a value as possible for the filament diameter.
Although the filament used in FDM printers is sold as being either 3mm
or 1.75mm this is only a general guide. The diameter can vary between
manufacturers and even between batches. Therefore it is highly
recommended to take multiple measurements from along a length of the
filament and use the average. For example, measurements of 2.89,
2.88, 2.90 and 2.91 would yield an average of 2.895, and so this would
be used.
Figure 3.5: Configuration Wizard: Filament Diameter
Slic3r in Depth
5. Extrusion Temperature
The extrusion temperature will depend on the material, and most can
operate over a range of temperatures. The supplier should provide
guidance as to which temperatures are suitable. A very general rule of
thumb is that PLA lies between 160◦C and 200◦C, and ABS lies between
215◦C and 250◦C. More exotic materials will have a different range.
This is one parameter which you will want to fine tune when you start
producing prints. The optimal temperature can vary even between
colours of the same material. Another factor which may affect the
chosen temperature is how fast the extrusion is, where generally faster
extrusion runs hotter.
Note: One may choose to control the extruder temperature manually
from the printer controller. In this case the temperature can be set to
zero.
Figure 3.6: Configuration Wizard: Extrusion Temperature
3.3. FIRST SLICE
6. Bed Temperature
As with the extruder temperature, the value will depend on the material
used. A rule of thumb is that PLA requires 60◦C and ABS requires 85◦C.
Note: One may choose to control the bed temperature manually from the
printer controller. In this case the temperature can be set to zero.
Figure 3.7: Configuration Wizard: Bed Temperature
At this stage the wizard is complete and the basic configuration is
defined.
Figure 3.8: Configuration Wizard: End
Slic3r in Depth
The Important First Layer
Before delving into producing the first print it is worthwhile taking a little
detour to talk about the importance of getting the first layer right. As
many have found through trial and error, if the first layer is not the best it
can be then it can lead to complete failure, parts detaching, and
warping. There are several techniques and recommendations one can
heed in order to minimise the chance of this happening.
Level bed
Having a level bed is critical. If the distance between the nozzle tip and
the bed deviates by even a small amount it can result in either the
material not lying down on the bed (because the nozzle is too close and
scrapes the bed instead), or the material lying too high from the bed and
not adhering correctly.
Higher temperature
The extruder hot-end and bed, if it is heated, can be made hotter for
the first layer, thus increasing the viscosity of the material being printed.
As a rule of thumb, an additonal 5◦ is recommended.
Lower speeds
Slowing down the extruder for the first layer reduces the forces applied
to the molten material as it emerges, reducing the chances of it being
stretched too much and not adhering correctly. 30% or 50% of the
normal speed is recommended.
Correctly calibrated extrusion rates
If too much material is laid down then the nozzle may drag through it on
the second pass, causing it to lift off the bed (particularly if the material
has cooled). Too little material may result in the first layer coming loose
later in the print, leading either to detached objects or warping. For these
reasons it is important to have a well-calibrated extrusion rate.
First layer height
A thicker layer height will provide more flow, and consequently more
heat, making the extrusion adhere to the bed more. It also gives the
benefit of giving more tolerance for the levelness of the bed. It is
recommended to raise the first layer height to match the diameter of the
nozzle, e.g. a first layer height of 0.4mm for a 0.4mm nozzle. Note: The
first layer height is set this way automatically in simple mode.
3.3. FIRST SLICE
Wider extrusion width
The more material touching the bed, the better the object will adhere to it,
and this can be achieved by increasing the extrusion width of the first
layer, either by a percentage or a fixed amount. Any spaces between the
extrusions are adjusted accordingly.
A value of approximately 200% is usually recommended, but note that the
value is calculated from the layer height and so the value should only be
set if the layer height is the highest possible. For example, if the layer
height is 0.1mm, and the extrusion width is set to 200%, then the actual
extruded width will only be 0.2mm, which is smaller than the nozzle. This
would cause poor flow and lead to a failed print. It is therefore highly
recommended to combine the high first layer height technique recommended
above with this one. Setting the first layer height to 0.4mm and the first
extrusion width to 200% would result in a nice fat extrusion 0.4mm wide.
Bed material
Many options exist for the material to use for the bed, and preparing the
right surface can vastly improve first layer adhesion.
PLA is more forgiving and works well on PET, Kapton, or blue painters
tape. ABS usually needs more cajoling and, whilst it can print well on
PET and Kapton, there are reports that people have success by applying an
ABS slurry (made from dissolving some ABS in Acetone) thinly, can also
help keep the print attached.
No cooling
Directly related with the above, it makes no sense to increase the
temperature of the first layer and still have a fan or other cooling
mechanism at work. Keeping the fan turned off for the first few layers is
generally recommended. Of course, some models may need direct cooling
due to their size, but this would be an exception
Slic3r in Depth
Print Settings
The Print Settings tab provides the opportunity to change settings related
to the actual print. Whereas the other tabs are changed rarely, the settings
on this tab will be modified regularly, possibly for each model printed.
Layer height is the thickness of each layer, and it is the step along the
vertical axis taken before extruding a new layer atop the previous one.
There are several factors that influence how high each layer should be:

Desired resolution - Lower layer height should result in prints
with less noticeable ribs or bands, as each layer is smaller.
Aesthetics plays a role here, but also the type of model, for example,
a mechanical part may not need such a high resolution finish,
whereas a presentation piece may do so.

Print speed - Shorter layers will result in smoother prints but
each print will take longer, simply because the extruder must
trace the pattern more times. A later goal will be to strike a
balance between layer height, the speed of the printer, and the
quality of the resulting print.
Perimeters defines the minimum number of vertical shells (i.e. walls) a
print will have. Unless the model requires single width walls it is generally
recommended to have a minimum of two perimeters as this gives some
insurance that if a section of the perimeter is not printed correctly then the
second perimeter will help cover it.
The upper and lowermost layers that sandwich the model are filled with a
Solid layers pattern. For the bottom layers the important factor to
consider is how the surface will look should there be a mistake whilst laying
down the first layer, and for this reason it is recommended to have at least
two bottom layers.
A similar consideration is required for the top layers. Because the
intermediate layers are likely to be filled with a pattern set less than 100%
then the covering layers will have to bridge this pattern and this can require
more than one pass to cover completely.
3.3. FIRST SLICE
Figure 3.9: Simple Mode: Print Settings.
Slic3r in Depth
Another tip to consider: Setting the top solid layer to zero, and setting the
infill also to zero, will result in a hollow receptacle, ideal for turning
models into vases2 for example. Here manipulating the settings within Slic3r
can be used to generate different kinds of prints, and not only be used to
control surface accuracy.
Figure 3.10: Creating a vase from a solid model.
Infill
Fill density is defined on a scale of between 0 and 1, where 1 is 100%
and 0.4 would be 40%. For the majority of cases it makes no sense to 100%
fill the model with plastic, this would be a waste of material and take a long
time. Instead, most models can be filled with less material which is then
sandwiched between layers filled at 100% (see Solid layers above).
2 http://slic3r.org/blog/tip-printing-vases
3.3. FIRST SLICE
A density value of 0.4 is enough to give almost all models good mechanical
strength. A value of 0.2 is usually the minimum required to support flat
ceilings.
Slic3r offers several fill patterns which will be discussed in more depth in
section 3.4 - Infill Choices. Choosing a pattern will depend on the kind of
model, the desired structural strength, print speed, and personal taste. The
more exotic fill methods are usually too slow and unnecessarily complex
for most use cases, and so most of the time the infill pattern is either
rectilinear, line, or honeycomb. Honeycomb gives the most strength
but is slower than both rectilinear or line.
Support material. Printing a model from the bottom up, as with FDM,
means that any significant overhangs will be printed in the air, and most
likely droop or not print correctly. Choosing support material will add
additional structures around the model which will build up to then support
the overhanging part. The Pattern spacing option determines how dense
the support material is printed.
Figure 3.11: An example of support material.
Tip: It is sometimes worth considering altering the orientation of the
model in order to possibly reduce overhangs.
Raft layers will add additional layers underneath the model and stems
from the early days of 3D printing. It can help with prints without a heated
Slic3r in Depth
bed, or where the bed is not very flat, but it is usually not required and is
not recommended. The raft also requires post-processing to remove it.
Speed
In simple mode there are only three speed settings to consider:

PERIMETER- The outline of the model may benefit from being
printed slightly slower so that the outside skin of the print has fewer
blemishes.

INFILL As the infill is hidden this can be extruded a little
faster. Take care though not to go too fast as higher speeds results
in thinner extrusions, and this may affect how the extrusions bond.

TRAVEL- The jump between the end of one extrusion and the
next should usually be performed as quickly as the printer will
allow in order to minimise any mess caused by material oozing from
the nozzle.
Brim
Brim is used to add more perimeters to the first layer, as a base flange,
in order to provide more surface area for the print to stick to the bed with
in order to reduce warping (see §3.3). The brim is then cut away once the
print is finished and removed from the bed.
Figure 3.12: An example of brim.
Sequential printing. When printing several objects at once it can be
useful to print each one separately as this will minimise oozing and strings
running between the prints. Care has to be taken that the nozzle and
extruder does not interfere with already printed parts.
3.3. FIRST SLICE
This is the reason for the Extruder clearance parameters:

Radius - The clearance that should be given around the
extruder. Take care if the extruder is not mounted centrally - take
the largest safe value.

Height - The vertical distance between the nozzle tip and the X
axis rods, or lowest part which may interfere with a finished print.
Filament Settings
The Filament Settings will normally be used infrequently, for example
on receipt of a new roll of filament.
Figure 3.13: Simple Mode: Filament Settings.
Slic3r in Depth
Filament
The Diameter setting will already have been filled from the value given
during the wizard, but can be updated here.
The Extrusion multiplier setting allows the fine tuning of the extrusion
flow rate, and is is given as a factor, e.g. 1 means 100%, 1.5 would mean
150%. Whilst the value should ideally be set in the firmware it can be
useful to test slight changes to the rate by altering this value. It varies the
amount of plastic proportionally and should be changed in very small
steps (e.g. +/- 0.05) as the effects are very visible.
Temperature
These values are also filled from the wizard, but here the opportunity
exists to set the temperature for the first layer.
Printer Settings
The Printer Settings will be updated the least, unless Slic3r is going to
be used for many printers, for example, in a 3D printer farm.
3.3. FIRST SLICE
Figure 3.14: Simple Mode: Printer Settings.
Size and coordinates
The Bed size setting is taken from the wizard (see p.43) and is only used
for previewing the model in the viewer.
The Print center is the point around which the print will be centered. A
Bed size of 200mmx200mm and a Print center of 100mmx100mm
would sit the print in the middle. Should it be desired to print away from
the center, because of a scratch in the glass perhaps, then this option should
be used.
Slic3r in Depth
Z offset can be used to compensate for an incorrectly calibrated Z
end-stop. If the nozzle stops slightly too far from the bed, then adding a
negative value will offset all layers by that amount. The correct solution
however is to fix the end-stop itself.
The optimal Z endstop position is where the nozzle tip barely touches the
surface of the bed when homed. A sheet of paper makes a good gauge for
this very small distance. It is not recommended to use this setting to try
and improve layer adhesion, by ”squashing” the bottom layer into the bed,
instead look at the suggestions in section 3.3.
Retraction
Unless the material being extruded has a very high viscosity it may ooze
between extrusions due to gravity. This can be remedied by actively
retracting the filament between extrusions. Setting the Length parameter
to a positive value will cause the filament to be reversed by that many
millimeters before travel. The retraction will then be compensated for by the
same amount after the travel move, before starting the new extrusion path.
A value of between 1 and 2mm is usually recommended.
Setting the Lift Z parameter to a positive value will raise the entire
extruder on the Z axis by that many millimeters during each travel. This
can be useful to ensure the nozzle will not catch on any already laid filament,
however it is usually not necessary and will slow the print speed. A value
of 0.1mm is usually sufficient.
Start, End and Layer Chance G-codes. Custom G-code commands
can be run before a print starts, after a print finishes, and between each
layer change.
3.3. FIRST SLICE
Placeholders can be inserted in the G-code commands3. For example
[next extruder] would return the index of the next extruder.
The RepRap wiki is a good resource to learn about the variety of Gcodes available:
http://reprap.org/wiki/G-code.
Note: Be sure to check that a given G-code is valid for your firmware.
Some common G-codes to use before the print starts are:
• G28 - Homes all the axes.
• M104 S0 - Sets the extruder temperature to zero.
• M140 S0 - Sets the heated bed temperature to zero.
• G28 X0 - Home the X axis.
• M84 - Disables the motors.
Working with Models
Yet another step lies between now and the first print - a model has to found
and then sliced.
Model Formats
Slic3r accepts the following file types.
STereoLithography (STL) files can come from a wide variety of sources and
are now a de facto standard in 3D printing. The files simply describe
the surface geometry of a 3D object without any additional information
(such as colour or material), and it is this simplicity that has probably
made the format ubiquitous.
Wavefront OBJ files are an open format originally used in an animation
application from Wavefront Technologies, but has since been adopted by the
wider 3D modelling community. It is similar to the STL format.
3 https://github.com/alexrj/Slic3r/wiki/FAQ#what-placeholders-can-i-use-in-
code
custom-g-
Slic3r in Depth
Additive Manufacturing File Format (AMF) was developed in response to the
limited nature of the STL format. In addition to describing the geometry of
the 3D model it can also describe colours and materials, as well as more
complex attributes, such as gradient mixes and multiple object
arrangements (constellations). Whilst the format is deemed a standard it
has yet to be widely adopted in the 3D maker community.
Finding Models
The 3D model files may come from an online repository, such as Thingiverse4
or GrabCAD5 or be created from a CAD program, such as FreeCAD6 ,
OpenSCAD7 , or an online CAD tool such as Shapesmith8 .
You may wish to view the files before slicing and there are many free
applications available: Meshlab9 or FreeCAD which can both be used to
import, view, and repair STL models.
4 http://www.thingiverse.com
5 http://grabcad.com
6 http://sourceforge.net/projects/free-cad
7 http://www.openscad.org
8 http://shapesmith.net
9 http://www.meshlab.org
3.3. FIRST SLICE
Figure 3.15: Shapesmith online CAD tool.
Working with Repetier
It allows one or more models to be loaded and arranged before being
sliced.
Slic3r in Depth
Once you have acquired a model, drag it onto the window (or use the
Add button below the file list) to load it. In the figure below, EZ3-India’s
logo is loaded, and is viewed from above. The border around the model
is a skirt - a single perimeter, several millimeters away from the model,
which is extruded first. This is useful in making sure the plastic is flowing
smoothly from the nozzle when the model is starting to be printed.
Figure 3.17: LOGO model.
Figure 3.18: STL file loaded.
3.3. FIRST SLICE
The model can be repositioned by dragging the representation of it on the
left of the screen around the bed. Note that the dimensions of the bed
should match your printer, as given during the initial configuration above.
On the right-hand side is the list of currently loaded files. The buttons
along the top of the file list allow you to arrange the models.
• Rotate - Rotate the selected model around the Z axis, either in 45◦
increments clockwise or counter-clockwise, or by a given amount.
• Scale - Increase or decrease the size of the printed model.
• Split - Divides a model which consists of more than one part into it’s
constituent parts, allowing each one to be arranged individually.
The buttons along the bottom of the file list allow you to add, remove,
auto- arrange, or export the models.
• Add - Opens a file dialog to add a model , as an alternative to
dropping a file directly.
• Delete/Delete All - Remove one or all models from the plater.
• Autoarrange - Attempt to arrange the models to give the optimal
layout.
• Export G-code - Starts slicing the model and produces a G-Code
file.
• Export STL - Save the current set of models as a single STL file.
Slic3r in Depth
First Print
At this stage Slic3r has been configured and a model has been
acquired, sliced and made ready for print. Now would be the time to fire
up the printer and try it out.
A variety of host software is available to send the G-code to the printer.
The following sections will cover the options available in expert mode,
and look at advanced printing techniques, including special cases and
troubleshooting.
3.4
Expert Mode
Speed
Once the printer is reliably producing good quality prints it may be
desirable to increase the speed. Doing this provides several benefits,
the most obvious of which is that the results are produced quicker, but
also faster print times can be utilised in producing more layers, i.e. lower
layer height, thus improving perceived print quality. An additional benefit
is that a faster travel movement, between extrusions, can reduce the
effects of oozing.
The best approach is to increment the various speed parameters in
small steps and observe the effect each change has on print quality.
Travel speed is a safe starting point, and it is not unrealistic to attain
speeds of up to 250mm/s (if your printer can handle it). Adjusting the
speed of perimeters, infill is available in simple mode, and the general
rule is to have the perimeter go a little slower than the infill in order to
reduce possible blemishes on the surface (infill can be faster because
slight gaps will not matter as much).
Expert mode offers more parameters to fine tune printer speeds. Differentiation between external, small and other perimeters, infill locations,
,bridges and gaps are available, as well as the ability to slow down for
the first layer.
3.3. EXPERT MODE
Figure 3.19: Expert mode speed options.
Where indicated a value can be given in percentage. This is in relation to
the preceding value, e.g. 50% solid infill would be half of the value
defined for infill.
A few general guidelines for each option:
• Perimeters - In expert mode this parameter can be increased slightly
as the External perimeters option can be used to ensure blemish
free external faces.
• Small perimeters - Meant for holes, islands and fine details, a slower
speed here is recommended.
• External perimeters - A slightly slower value may ensure cleaner
surfaces.
• Infill - As fast as you can without compromising the integrity of the
fill structure. Faster extrusions can break and result in weak spots.
• Solid infill- The bottom of the model, and any additional solid
layers is usually slightly slower than infill but faster than perimeters.
Slic3r in Depth
• Top solid i n f i l l - Allow time for the extrusion to cleanly cover the
previous top layers and result in a tidy top surface. the last few layers
should have bridged the infill structure nicely, preparing the way for
a neat finish.
• Support material - Generally support structures are quick and dirty,
and so long as the base is adequately supported they can be built as
quickly as they can.
• Bridges - Having the extrusion span distances depends on the material
and cooling. Going too slow will result in sagging, too fast will result
in broken strands. Experimentation is the key here, but generally
bridging runs slower than perimeters.
• Gap f i l l - Filling in small gaps results in the extruder quickly
oscillating and the resulting shaking and resonance could have a
detrimental affect on the printer. A smaller value here can guard
against this. A setting of zero disables gap filling completely.
• Travel - As fast as your printer will allow in order to minimise ooze.
• First layer speed - As mentioned in section 3.3, the first layer is
important to lay down correctly, and a slower pace helps enormously.
Setting a value of 50%, or even less, can really help.
Acceleration control is an advanced setting allowing acceleration settings
for perimeters, infill, bridge, as well as a default setting, to be made. Deciding
which values to set depends on the capabilities of the machine. Any settings
within the firmware may be a good starting point.
Take into account any restrictions enforced by the firmware as many
have settings for the maximum safe speed of each axis.
Infill Patterns and Density
There are several considerations when choosing an infill pattern: object
strength, time and material, personal preference. It can be inferred that a
more complex pattern will require more moves, and hence take more time
and material.
3.4. EXPERT MODE
Figure 3.20: Infill pattern settings.
Slic3r offers several infill patterns, four regular, and three more exotic
flavours. The numbers given in brackets below each figure are a rough
estimate of material used and time taken for a simple 20mm cube
model14. Note that this is only indicative, as model complexity and other
factors will affect time and material.
Figure 3.21: Infill pattern: Line (344.51mm / 5m:20s)
Figure 3.22: Infill pattern: Rectilinear (350.57mm / 5m:23s)
14 Taken
from http://gcode.ws
Slic3r in Depth
Figure 3.23: Infill pattern: Concentric (351.80mm / 5m:30s)
Figure 3.24: Infill pattern: Honeycomb (362.73mm / 5m:39s)
Figure 3.25: Infill pattern: Hilbert Curve (332.82mm / 5m:28s)
Figure 3.26: Infill pattern: Archimedean Chords (333.66mm / 5m:27s)
3.4. EXPERT MODE
Figure 3.27: Infill pattern: Octagram Spiral (318.63mm / 5m:15s)
Certain model types are more suited for a particular pattern, for example
organic versus mechanical types. Figure 3.29 shows how a honeycomb fill
may suit this mechanical part better because each hexagon bonds with the
same underlying pattern each layer, forming a strong vertical structure.
Figure 3.28: Infill pattern comparison in a complex object. Left to Right:
honeycomb, line
Most models require only a low density infill, as providing more than, say,
50% will produce a very tightly packed model which uses more material than
required. For this reason a common range of patterns is between 10%
and 30%, however the requirements of the model will determine which
density is best. Figure 3.30 shows how the patterns change as the density
increases.
Slic3r in Depth
Figure 3.29: Infill patterns at varying densities.
Left to Right: 20%, 40%, 60%, 80%.
Top to Bottom: Honeycomb, Concentric, Line, Recti- linear, Hilbert Curve,
Archimedean Chords, Octagram Spiral
3.4. EXPERT MODE
Infill Optimization
Slic3r contains several advanced infill settings which can help produce better
extrusions.
Figure 3.30: Infill advanced settings.
• Infill every n layers - Will produce sparse vertical infill by
skipping a set number of layers. This can be used to speed up print
times where the missing infill is acceptable.
• Only infill where needed - Slic3r will analyse the model and choose
where infill is required in order to support internal ceilings and
overhangs. Useful for reducing time and materials.
• Solid Infill every n layers - Forces a solid fill pattern on the
specified layers. Zero will disable this option.
• Fill angle - By default the infill pattern runs at 45◦ to the model to
provide the best adhesion to wall structures. Infill extrusions that run
adjacent to perimeters are liable to de-laminate under stress. Some
models may benefit from rotating the fill angle to ensure the optimal
direction of the extrusion.
• Solid Infill threshold area - Small areas within the model are
usually best off being filled completely to provide structural integrity.
This will however take more time and material, and can result in parts
being unnecessarily solid. Adjust this option to balance these needs.
Slic3r in Depth
• Only retract when crossing perimeters - Retracting, to prevent
ooze, is unnecessary if the extruder remains within the boundaries of
the model. Care should be taken if the print material oozes excessively,
as not retracting may result in enough material loss to affect the
quality of the subsequent extrusion. However, most modern printers
and materials rarely suffer from such extreme ooze problems.
• before perimeters - Reverses the order in which the layer is
printed. Usually the perimeter is laid down initially, followed by
the infill, and this is usually the preferable as the perimeter acts as a
wall containing the infill.
Fighting Ooze
Unless the material being extruded has a very high viscosity it will ooze
from the nozzle in between extrusions. There are several settings in Slic3r
to which can help to remedy this.
The retraction settings, found in the Printer tab, tell the printer to pull
back the filament between extrusion moves. This can alleviate the pressure
in the nozzle, thus reducing ooze. After the subsequent travel move the
retraction is reversed to prepare the extruder for the next extrusion.
Figure 3.31: Retraction settings.
• Length - The number of millimeters to retract. Note that the
measurement is taken from the raw filament entering the extruder.
A value between 1 and 2mm is usually recommended
• Lift Z - Raises the entire extruder on the Z axis by that many
millimeters during each travel. This can be useful to ensure the nozzle
will not catch on any already laid filament, however it is usually not
necessary and will slow the print speed. A value of 0.1mm is usually
sufficient.
• Speed - The speed at which the extruder motor will pull back the
filament. The value should be set to as quick as the extruder can
handle without skipping steps, and it is worth experimenting with
this value to find the quickest retraction possible.
• Extra length on restart - Adds an extra length of filament after
the retraction is compensated after the travel move. This setting
is rarely used, however should the print show signs of not having
enough material after travel moves then it may be useful to add a
small amount of additional material.
• Minimum travel after retraction - Triggering a retraction after
very short moves is usually unnecessary as the amount of ooze is usually
insignificant and it slows down the print times. Set the number of
millimeters minimum distance the nozzle must move before considering
a retraction. If the printer handles ooze well this can be increased to
5 or 6mm.
• Retract on layer change - Movement along the Z axis must also
be considered when dealing with oozing, otherwise blobs may occur.
It is recommended to leave this setting on.
Additionally there are several settings in the Print tab which can help
control oozing.
• Only retract when crossing perimeters (Infill) - Tells Slic3r to
only retract if the nozzle will cross the threshold of the current island
being extruded. Slight ooze within the walls of a part are not seen
and can usually be accepted.
Slic3r in Depth
• Avoid crossing perimeters (Layers and perimeters - Advanced)
- Will force the nozzle to follow perimeters as much as possible to
minimise the number of times it must cross them when moving around,
and between, islands. This has a negative impact on both G-code
generation and print times.
• Randomize starting points (Layers and perimeters - Vertical shells)
- As the extruder moves up to the start of the next layer any ooze can
result in blobs. If the same start point is used for every layer then a
seam can form the length of the object. This setting will move the
start point to a difference location for each layer.
Skirt
The Skirt setting adds an extrusion a short distance away from the perimeter
of the object. This can ensure that the material is flowing smoothly from
the extruder before it starts on the model proper.
Figure 3.32: Skirt settings.
• Loops - How many circuits should be completed before starting on
the model? One loop is usually sufficient.
• Distance from object - The millimeters between the object and the
skirt. a default of 6mm is usually sufficient.
• Skirt height - The number of layers to lay down a skirt for. For
ensuring the material is flowing smoothly, one layer is sufficient,
however the skirt function can also be used to build walls around the
object in case it should be protected from drafts.
3.4. EXPERT MODE
• Minimum extrusion length - Dictates a minimum number of
millimeters that the skirt should be, should the loop around the
object not be enough.
Cooling
Temperature plays a key part in determining print quality. Too hot and
the material deforms, too cool and layer adhesion may be problematic.
Applying cooling will allow the freshly deposited material to solidify
enough to provide a good base for the next layer, helping with
overhangs, small details and bridges.
There are two main techniques for cooling: adding a fan and slowing
down the print speed. Slic3r may choose to use techniques, using a fan
first, and then slowing down the print if the layer time is too fast.
Figure 3.33: Cooling strategy.
Figure 3.34 shows the strategy adopted by Slic3r. Reading from right to
left, when the minimum fan threshold (#2) is reached the fan is turned
Slic3r in Depth
On. This increases in intensity as the layer time decreases. The print
speed remains constant until the estimated print time drops below a
certain threshold (#1); this is when the print speed is reduced until it
reaches its minimum value.
Fans
These can then be instructed with G-code, from Slic3r, to turn on or off as
the model requires, and to rotate at different speeds.
Slowing Down
Slic3r can tell the printer to slow down if the estimated layer time is above a
certain threshold.
Care must be taken as the intended effect could be mitigated by the
nozzle not moving far enough away from the fresh extrusion, a problem
with small, detailed layers. For this reason it is usually recommended to
use a fan where possible.
Configuring
In simple mode Slic3r will attempt to choose the optimal settings for both
fans and speed. Expert mode gives more granular options.
3.4. EXPERT MODE
Figure 3.34: Cooling advanced settings.
• Fan speed - Determines the minimum and maximum speeds - useful
for fans that run too fast by default.
• Bridges fan speed - As the material stretches over wide gaps, it
makes sense to try and cool it as much as possible, therefore a full fan
speed is recommended.
• Disable fan for first x layers - Section 3.3 detailed how
important the first layer is, and so it makes sense not to apply the
fan until sure the print is securely attached to the bed. Keeping the
fan turned off for the first two or three layers is a good idea.
• Keep fan always on - Overrides any other choices and has the fan
run continuously, at least at the minimum speed setting. This can be
useful when printing with PLA, but is not recommended for ABS.
• Enable fan if print time is below t seconds - T r i g g e r s t h e
fan if the layer will be completed within the given number of seconds.
• Slow down if layer print time is below t seconds - Slows
down the print if the layer will be completed within the given number
of seconds.
• Min print speed - A lower limit on how slowly a layer can be printed.
Slic3r in Depth
Support Material
Generally, most 3D models will print with overhanging parts by up to a
certain degree. The angle is determined by several factors, most notably
layer height and extrusion width, and is usually around 45◦ . For models
with larger overhangs a support structure may have to be printed below it.
This incurs the use of more material, longer print times, and post printing
clean-up.
Figure 3.35: Support structure options.
The first thing to do is activate the support material option. Providing a
value of zero to the Overhang threshold parameter tells Slic3r to detect
places to provide support automatically, otherwise the degrees given will be
used. Support generation is a relatively complex topic, and there are several
aspects which determine the optimal support, it is strongly recommended to
set the threshold to zero and allow Slic3r to determine the support required.
Small models, and those with small footprints, can sometimes break or
detach from the bed. Therefore the Enforce support option will cause
support structures to be printed for the given number of layers, regardless
of the angle threshold value.
To demonstrate the infill patterns the minimum model was tilted by 45◦
Along the x axis, as shown in figure 3.37.
3.4. EXPERT MODE
Figure 3.36: Minimum model, tilted 45◦ .
As with infill, there are several patterns available for the support
structure.
Figure 3.37: Support infill pattern: Rectilinear
Figure 3.38: Support infill pattern: Rectilinear Grid
Slic3r in Depth
Figure 3.39: Support infill pattern: Honeycomb
Pattern Spacing determines the distance between support lines, and is
akin to infill density apart from being defined only in mm. If changing
this attribute take into account the width of the support extrusion and the
amount of support material that will adhere to the object.
Care should be taken to choose a support pattern which matches the
model, where the support material attaches perpendicularly to the wall
of the object, rather than in parallel, so it will be easy to remove. If the
support structure does run along the length of a wall then the Pattern
Angle option allows the direction of the support lines to be rotated.
Figure 3.40: Example of pattern angle rotated 45◦.
3.5
Configuration Organization
There are two ways to organize the configuration settings: exporting and
importing the configuration settings, and profiles. The former is available in
both simple and expert mode, whereas profiles is only available in expert
mode.
Exporting and Importing Configuration
The current set of configuration options can be simply exported via the
Export Config File menu option. This saves all the values into a text file
3.5. CONFIGURATION ORGANIZATION
with a .ini extension. Previously saved files can be loaded with the Load
Config menu option.
This gives a rudimentary means to store different configuration settings for
different needs. For example a set with slightly faster print speeds, or a
different infill pattern. However this way of organizing things will quickly
become frustrating, as each minor change to a parameter may have to be
duplicated across many configurations. For this reason, profiles are a more
suitable way of managing multiple configurations.
This method also allows configuration to be transferred between machines, or stored remotely.
Profiles
After a few prints it will become apparent that it is worth having a set of
configuration options to choose from, and that some parameters change
at different rates as others. In expert mode, profiles can be created for
Print, Filament and Printer settings, with the expectation that the printer
settings change least often, filament rarely, and the print settings could be
changed for each model. These different profiles can be mixed and matched
as desired, and can be selected either in their respective tabs, or directly
from the platter.
Creating Profiles
Open the desired tab and change the settings as necessary. Once
satisfied, click the save icon to the left above the setting titles, and give
a suitable name when prompted.
Figure 3.41: Saving a profile.
Loading Print Material
Loading Print Material
Before you start printing you will need to load a reel of filament on to the
reel holder. If mounted correctly the reel holder will keep the filament reel
rotating smoothly. The reel holder is meant to work with 1kg and 5lb
plastic filament reels but can be modified the work with other reel and spool
types.
1. Locate the filament reel spindle and unthread and remove the wing
nut and washer (fig. 4.1,). Set the filament reel on to the rear reel
mount with the filament feeding clockwise. Insert the reel spindle
into the plastic filament reel.
Figure 4.1: Filament spool mount parts
2. Thread the reel spindle through the reel into the rear reel mount on
the lower left hand side of the Printer (fig. 4.2). Turn the spindle
handle clockwise until it snugs up against the reel and then turn it
back one quarter of a turn. This will allow the reel to easily turn
but not turn too freely that it would allow the filament to unravel.
3. Slide the washer onto the end of the spindle on the back of the reel
mount. Thread the wing nut onto the spindle end and loosely up
Figure 4.2: Filament spool mount front
Figure 4.3: Filament spool mount back
Loading Print Material
against the nut on the back of the reel mount (fig. 4.3). While holding
the reel spindle handle in place tighten the wing nut against the nut
on the back of the reel mount. This will keep the tension you set at
the handle in place. If you need to adjust the tension, loosen the
wingnut, adjust the handle tension, and retighten the wingnut.
4. Feed the end of the filament through the filament feed tube.
Tube can be removed from the extruder by gently pressing the
blue holder that sits on top of extruder. The Filament should now be
threaded through the PTFE sleeve and exiting near the extruder (fig.
4.4).
Figure 4.4: Filament run through the guide
5. When changing filament, slide the opposite end of the filament through
one of the holes in hub of the filament reel. This will keep the filament
from
unwinding
from
the
reel
Your First 3D Print
Your First 3D Print
5.1
Set Temperature
Make sure to first read the instructions for using the Repetier software.
Connect to the printer as described in the Repetier software section. Set
the hot end and print surface for ABS or PLA plastic and turn both on. The
temperature settings for ABS should be set at 230◦ C for the hot end and
85◦ C for print surface; for PLA they should be set at 180◦ C-185◦ C for the
hot end and 60◦ C for print surface.
5.2
Inserting Filament into the Extruder
Once the hot end is heated to the correct temperature you will now need to
load the plastic filament into the extruder. Raise both the idler clip and the 2
screws adding tension to release the hinged idler. It can be loosened if
necessary. (Fig. 5.1). Gently pull both the idler screws and the plastic clip
can push the filament through the extruder by slowly pushing the
filament down into the hot end.
Once the filament extrudes a small amount out of the nozzle raise the idler
and slide the two idler bolts and plate back into place. Tighten the two
idler bolts if you previously loosened them or if you need additional
clearance. Now use the Extrude button in Printrun to test that the extruder
is working properly. You may need to extrude 30-60mm to fully prime the
hot end.
5.3
Home Printer
Use the home buttons to home the X axis and then the Y axis. Next home
the Z axis. When the Z axis is at home the nozzle tip should be sitting right
against the glass (Fig. 5.3). The image to the right, in figure 5.3, is the
correct nozzle height. The nozzle should not be pushing down on the print
surface. To lower or raise the Z home height adjust the Z end stop
5.3. HOME PRINTER
Your First 3D Print
Figure 5.1: Nozzle height
trigger. The red end stop trigger is on the far left of the printer mounted on the
X-axis motor mount. (Fig. 5.4). The Z home position can be raised by turning
the Z end stop trigger clockwise and lowered by turning counter-clockwise.
Once you have homed the axes and the hot end and bed have reached the
correct temperature it is time to print!
5.4
Z Print Height
(Bed Level)
The .gcode pattern should appear in the G-Code viewer. Press the Print
button to begin the print. When the print starts make sure the first layer is
not printing too close or too far from the print bed. Note Figure 5.5, as an
example of a good first layer adhesion. From left to right:
Figure 5.2: First layer adhesion
Very Low, Low, Perfect, High, Very High
If the first layer is too high or low you can pause the print by pressing the
Pause button. Adjust the Z end stop trigger (Fig 5.3). Turn it Clockwise to
go from Very Low to Perfect, Counter-Clockwise to go from Very High to
Perfect. After making adjustments you can home the axes and press Restart
to restart the print.
Figure 5.3 Z-Stop Trigger
Your First 3D Print
5.5
Remove Part
After the part is finished printing, the heated bed will automatically cool
down to room temp. Once the bed cools you can pop the finished part off
of the printed surface. To remove the printed part, use the spatula included
in your printer kit. Leather gloves are suggested to protect your hands from
the clam knife blade. It is also safe practice to not place your hand behind
the direction you are pushing the clam knife. Using the side of the clam
knife blade pry up one side of the printed part. If your part is large you
may need to pry at multiple points to pop the part off of the print surface.
When removing parts take caution not to damage the PET film. If the film
is cut or ripped it will peel from the glass and need to be replaced. Make
sure to reset the heated bed to the correct temperature and allow it to heat
up to the needed temperature before starting the next print.
Maintaining Your 3D Printer
Maintaining Your 3D Printer
6.1
Overview
There is little maintenance needed in keeping your EZ-MAKER printer
running. Depending on your rate of use you will want to perform a quick
check of your printer every 2-4 weeks. The following maintenance guide
lines will keep your printer printing quality parts.
6.2
Smooth Rods
Wipe the smooth steel rods with a clean rag or paper towel. The linear
bushings leave a solid lubricant that builds up over time. If you begin
hearing squeaking noises while the printer is printing, this is likely a sign
that the smooth rods need to be cleaned. NOTE: never apply any lubricant
or cleaning agent to the smooth rods; the bushings are self-lubricating.
6.3
PET Sheets
After repeated use, the PET sheet print surface will begin to wear.
Replacement PET sheets are available. To replace the PET print
surface it is best to remove the glass and heater assembly from the bed
mount. Place the assembly on a flat clean surface. Take caution to never
push down hard on the glass as this can cause the glass bed to crack.
Peel off the worn PET sheet from the glass print surface. If there is any
glue or plastic residue left on the glass surface, clean it with acetone or
an alcohol based glass cleaner. Peel a corner of the clear plastic away
from the green PET sheet and apply the corner of the PET to the corner of
the glass. Align the PET sheet onto the glass. Using a paper towel begin
slowly smoothing/applying the PET onto the glass while pulling back the
clear sheet from underneath the PET. You can also spray glass cleaner
onto the paper towel or the top side of the PET for a smoother application.
After applying the PET sheet to the glass any bubbles can be pushed out
or smoothed down using a credit card or stiff and dull piece of plastic.
Once the new PET sheet is in on, place the glass and heater assembly
back into the bed mount. With the glass assembly back in place, turn the
bed finger clamps back onto the corners of the glass sheet to lock it in place.
Reconnect the two connectors to the left of the print bed.
6.4. HOBBED BOLT
6.4
Hobbed Bolt
The plastic filament is pulled through the extruder by a hobbed bolt. After
repeated use, the teeth of the hobbed bolt can become filled with plastic.
Using the brush or pick from the printer kit, clean out the hobbed bolt
teeth. If an extruder jam ever occurs, remove the plastic filament from the
extruder and clean out the hobbed bolt.
6.5
Hot End
The hot end should be kept clean of extruded plastic by removing melted
plastic strands with the tweezers. If melted plastic builds up on the hot end
nozzle it can be cleaned with a paper towel soaked with acetone. Make sure
the hot end is completely cool before attempting to clean the nozzle with
acetone.
6.6
Electronics
The electronics case holding the board may need to have dust blown out
occasionally. Power down the printer and use the 2.5mm driver to remove the
4 M3 screws holding the lid to the enclosure. The fan is mounted to the lid
and connected to the board. Be careful with the fan cable during removal.
Once removed use short bursts of compressed air to blow out any dust or
debris. Plug in the lid fan paying attention to polarity and reattach the lid.
Advanced Usage
Advanced Usage
7.1
Intro
After becoming familiar with printing with t h e printer with the default
settings there are a few advanced techniques that may help in getting better
and more consistent prints. Some of these instructions include items and
materials not included with the EZ-MAKER. With any of these additional
items or materials, follow safety and usage guidelines as instructed by the
manufacturer.
7.2
Changing nozzles
The EZ-MAKER printer ships with a standard 0.4mm nozzle which allows
small layer resolution and up to 0.4mm layers. Although the 0.4mm
nozzle will be perfect for most printing applications we also offer
smaller and larger nozzle sizes.
If you have already printed with your nozzle you will need to loosen the
nozzle after the hot end has reached 160C. Unless heated past 160◦ C, any
ABS/PLA on the threads will influence how easily the items can be moved.
Removing the nozzle with the hot end cold, with the presence of plastic on
the threads can potentially damage the nozzle threads/threaded extension
When re-installing the nozzle, slightly thread the nozzle onto the threaded
extension, only one thread then set the hot end temperature to 160C. Once
the hot end has reached 160C finish installing the nozzle. Take extreme
caution when handling the hot end when at high temperatures; when at
160C the hot end can cause severe burns. Use a pair of pliers or thick leather
gloves when handling the hot end when at extrusion/melt temperatures. If
your hot end has not been used the nozzle can be removed with the hot end
at room temperature.
To change the nozzle you will need an 18mm and 13mm wrench. Slide the
18mm wrench onto the rectangular aluminum heater block away from the
heater resistor and thermistor wires.
Using the 13mm wrench turn the nozzle counter clock-wise. Make sure the
nozzle is turning off of the threaded aluminum extension that runs up
through the heater block. Do not allow the heater block to turn. This can
put strain on and possibly damage the wiring.
7.3. ABS/ACETONE GLUE
Once you have removed the nozzle you can then thread on the other
nozzle size you would like to use. Make sure the nozzle has threaded correctly
onto the threaded extension before trying to turn it with the wrench. Turn
the nozzle clock-wise until it tightens against the heater block.
After installing the new nozzle you may need to adjust your Z home
trigger setting before printing again. Refer to the Printing Your First Print
section for calibrating the Z home trigger setting.
If you will be changing nozzles frequently we suggest reapplying a small
amount of high temperate anti-seize to the inside threads of the nozzles.
You will need an anti-seize capable of temperature of at least 250◦ C.
7.3
ABS/Acetone Glue
Acetone is not included or required with the printer. An acetone safety
label is included for the HDPE bottle.
Acetone can cause skin irritation when prolonged skin contact occurs. It is
recommended to use acetone safe gloves when applying the ABS/acetone
glue. Use the ABS/acetone glue in a well- ventilated space. Leave the
mixture bottle closed except when applying a small amount to the wiping
towel. Acetone liquid and vapors are highly flammable. Keep acetone away
from open flames and high temperature sources, including the 3D printer.
Read the warnings label on your purchased acetone packaging for additional
warnings.
You may find that during printing, printed parts lift off of the print
surface on the corners. If you are seeing this problem you can make an
ABS/acetone glue to apply to the print surface. Using the HDPE acetone
safe bottle included in the printer kit, fill the bottle 3/4 full with acetone.
Now cut eight, 75mm lengths of ABS filament and put them in the bottle
with the acetone. Allow the ABS filament to dissolve for 4-6 hours.
When applying the acetone/ABS mixture it will work best when the bed
temperature is below 60C. To apply the acetone/ABS mixture put a small
amount onto a paper towel. Now, rub the towel onto the cool PET print
surface to apply a thin layer of ABS. Generally only one thin layer of the
acetone/ABS solution is needed. However, if needed you can apply
multiple coats.
3D Printer Support
3D Printer Support
9.1
Support
For common technical support questions for your 3D printer please visit
ez3.in. If you have further questions, e-mail our support team at
[email protected] Please completely read this manual before contacting
for support questions or help. You can also find more information
including images, videos, and updated versions of this manual in the
Download section of ez3.in.
9.2
Community
Community Support and Resources
• IRC chat rooms on the irc.freenode.net server.
– #reprap: Highly active community chat room where help can
easily be found
– #slic3r: Slic3r chat room where Slic3r developers and users can
give help
• RepRap.org forums: forums.reprap.org
Contact Information
Contact Information
10.1
Support
Email: [email protected]
Phone: +91-903-684-5667
10.2
Website
EZ 3D Printers and parts:
www.ez3.in
Glossary
.gcode The file extension for G-Code files
3D Printer Also referred to as additive manufacturing, is the process of
fabricating objects from 3D model data, through the deposition of a material
in accumulative layers.
ABS Acrylonitrile Butadiene Styrene thermoplastic. Usually extrudes at
230C.
Acetone A colorless, volatile, flammable liquid ketone, (CH3)2CO, used as
a solvent for ABS.
Baud Rate Refers to the speed at which the host controller communicates
with the 3d Printer electronics.
CAD Computer Aided Design
End stops Mechanical or optical switches that are used to mark the 3 home
(zero) positions.
Filament Plastic material in string like form, as is fed to the printer.
free/libre Free/Libre hardware and software can be thought of as free as
in free speech, not just free as in free beer, although most free/libre software
is available for no cost. Libre hardware designs can be copied, modified and
are usually available for download. Free/Libre software can be used in a
similar fashion.
GCODE The common name for the most widely used CNC programming
language.
HDPE High Density Polyethylene.
Heater block Machined from Aluminum, the heater block generates heat
with a heater resistor and uses a thermistor to measure the temperature.
Hotend
he hot
end is the whole part where the plastic melts, including the
nozzle, heater block, thermistor, and heat sink.
Idler Refers to parts using a bearing (usually a 608ZZ) to add tension in
belts or to add pressure against a rolling surface.
Layer height The thickness of each individual deposited layer of the three
dimensional model when cut with a slicing program.
Laywoo-D3 Wooden filament similar to PLA. Contains 40 percent recycled
wood. Usually prints at 180C- 210C. Color can be changed by varying the
extrusion temperature.
Nozzle The metal tip at the bottom of the hot end. It has a small hole
where the plastic filament comes out of the printer.
PEEK Polyether ether ketone- an organic polymer used to insulate the hot
end due to its mechanical properties at elevated temperatures.
PET Polyethylene terephthalate.
PLA Polylactic Acid is a corn-based biodegradable polymer. Usually extrudes
at 185C.
Polycarbonate A strong and impact resistant thermoplastic. Usually
extrudes at 300C.
RAMBo [R]epRap [A)]duino-[M]ega compatible [M]other [Bo]ard. Designed
by Joynnyr of Ultimachine.
Spool Plastic Filament coiled and stored on a plastic reel. Preferred due to
improved feeding and better mounting options.
STL Stereolithography file, also known as Standard Tessellation Language,
and STL file is the common 3D model file format.
Thermistor A special type of resistor that changes resistance based on
temperature. It is used to measure temperature on the nozzle and the be
Heater resistor A special type of resistor that is used to apply heat in a
small area.
HIPS High Impact Polystyrene.
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