Cura LulzBot Edition
FEED your mACHINE
LulzBot® Mini User Manual
PRO
OF
MINI
User Manual
Aleph Objects, Inc.
LulzBot® 3D printers are compatible with many different 3D printing
filaments; not only can you 3D print with ABS and PLA, but also with
metallic, stone-like, wooden, nylon, and even flexible materials. 3D
print with confidence knowing that each filament option has been
tested and integrated into Cura LulzBot Edition, the recommended
software for your LulzBot 3D printer.
LULZBOT.COM/FILAMENT
Content Type: Standard Color
Paper Type: STCO19 (Standard 50 White)
Page Count: 90
File type: Internal
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MINI
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User Manual
LulzBot Mini User Manual
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Aleph Objects, Inc.
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LulzBot® Mini User Manual
by Aleph Objects, Inc.
Copyright © 2016 Aleph Objects, Inc.
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).
Published by Aleph Objects, Inc., 626 West 66th Street, Loveland, Colorado,
80538 USA.
ISBN: 978-0-9893784-6-8
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For more information, call +1-970-377-1111 or go to LulzBot.com and
AlephObjects.com.
6.0-20161006
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Contents
WARNINGS
Safety Information ·
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Read Me First! · · · · · · · · · · · · · · · ·
Hazards and Warnings · · · · · · · · · · · · ·
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Regulatory Statements
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Regulatory Compliance Statement Class B
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Printer Software
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Software Overview · · · · · · ·
Software Types · · · · · · · ·
Installing Drivers · · · · · ·
CAD and 3D Modeling Software · ·
Alternative Printer Host Software
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1 3D
1.1
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2 Cura LulzBot Edition
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2.1 Cura LulzBot Edition · · ·
2.2 Quick Print Settings · · ·
2.3 View Options · · · · · · ·
2.4 Starting Your First Print ·
2.5 Removing Your First Print ·
2.6 Full Settings · · · · · ·
2.7 Basic Tab Options · · · · ·
2.8 Advanced Tab Options · · ·
2.9 Plugins · · · · · · · · ·
2.10 Start and End Gcode Settings
2.11 Expert Settings · · · · ·
2.12 Retraction · · · · · · ·
2.13 Skirt · · · · · · · · · ·
2.14 Cool · · · · · · · · · ·
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CONTENTS
Support · · · · · ·
Black Magic · · · ·
Brim · · · · · · ·
Raft · · · · · · ·
Fix Horrible · · · ·
3D Model Attribution
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3 Maintaining Your 3D Printer
3.1 Overview · · · · ·
3.2 Smooth Rods · · · ·
3.3 PEI Print Surface · ·
3.4 Hobbed Bolt · · · ·
3.5 Belts · · · · · · ·
3.6 Hot End · · · · · ·
3.7 Nozzle Wiping Pad · ·
3.8 Bed Leveling Washers
3.9 Cooling Fans · · · ·
3.10 Control Box · · · ·
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4 Advanced Usage
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4.1 Intro · · · · · · ·
4.2 Changing nozzles · ·
4.3 Firmware Flashing · ·
4.4 Z Offset · · · · · ·
4.5 Bed Adhesion · · · ·
4.6 Using 1.75mm filament
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7 Warranty Information
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7.2 Modification Warning · · · · · · · · · · ·
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8 Contact Information
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5 Hardware and Software Source Code
6 3D Printer Support
6.1 LulzBot · · ·
6.2 Support · · ·
6.3 Regional Phone
6.4 Community · ·
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CONTENTS
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8.2 Sales · · · · · · · · · · · · · · · · · ·
8.3 Regional Phone Numbers · · · · · · · · · · ·
8.4 Websites · · · · · · · · · · · · · · · ·
Index ·
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List of Figures
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Quick Print Settings · · ·
Options after selecting model
Rotating your Model · · ·
Scaling your Model · · ·
View in Normal Mode · ·
View in Overhang · · · ·
View in Ghost · · · · ·
View in Xray · · · · ·
View in Layers · · · · ·
Viewing Cumulative Layers
Viewing An Individual Layer
Control Screen · · · · ·
Transferring a Profile · ·
View in Full Settings · · ·
Differences in Layer Height
Support Types · · · · ·
View of Advanced Tab · ·
Cutoff Example · · · ·
View of Plugins · · · ·
View Expert Settings · ·
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2.1
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2.20
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WARNINGS
Safety Information
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WARNING!
Read Me First!
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READ THIS MANUAL COMPLETELY BEFORE UNPACKING AND
POWERING UP YOUR PRINTER.
Hazards and Warnings
Your LulzBot Mini 3D printer has motorized and heated parts. Always be
aware of possible hazards when the printer is operational.
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 printer. Allow the printer to discharge
for at least one minute.
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Burn Hazard
Never touch the hot end 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 20 minutes to completely cool. Never touch recently extruded plastic.
The plastic can stick to your skin and cause burns. The print surface can
reach high temperatures that are capable of causing burns.
Fire Hazard
Never place flammable materials or liquids on or near the printer when it
is powered on or operational. Liquid acetone, alcohol, or other chemicals
may release vapors that are extremely flammable.
Pinch Hazard
When the printer is operational take care to never put your fingers near
any moving parts including belts, pulleys, or gears. Tie back long hair or
clothing that can get caught in the moving parts of the printer.
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HAZARDS AND WARNINGS
Age Warning
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For users under the age of 18, adult supervision is recommended. Beware
of choking hazards around small children.
Modifications and Repairs Warning
At Aleph Objects, Inc., we respect your freedom to modify your LulzBot
desktop 3D printer. However any modifications or attempted repairs that
cause damage are not covered under the Warranty. Questions? Contact
Technical Support by emailing support@lulzbot.com, or by calling +1970-377-1111.
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Regulatory Statements
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Regulatory Statements
Regulatory Compliance Statement Class B
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Federal Communications Commission Statement
This device complies with part 15 class B of the FCC Rules. Operation is
subject to the following two conditions:
1. This device may not cause harmful interference and
2. This device must accept any interference received, including interference that may cause undesired operation.
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NOTE: This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
FCC Warning: Changes or modifications not approved by the party
responsible for compliance could void the users authority to operate the
equipment.
Industry Canada Statement
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CAN ICES-3 (B)/NMB-3(B) Cet appareil numérique de la classe B est
conforme à la norme ICES-003 du Canada. This device complies with
Canadian ICES-003 Class B.
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REGULATORY COMPLIANCE STATEMENT CLASS B
Australian Communications and Media Authority
Statement
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This device has been tested and found to comply with the limits for a
Class B digital device, pursuant to the Australian/New Zealand standard
AS/NZS CISPR 22:2009 + A1:2010.
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3D Printer Software
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3D Printer Software
1.1
Software Overview
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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.
Cura LulzBot Edition is the recommended software for your
LulzBot 3D printer. Download Cura LulzBot Edition by visiting
LulzBot.com/Cura.
All of the following Free/Libre Software packages are available for
GNU/Linux, Windows, and OS X. We highly recommend using these
programs on GNU/Linux.
1.2
Software Types
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Printer Hosts
Printer Host software is used to control the 3D printer. The program
not only allows you to manually move the printer along all the axes,
but set temperatures manually, send commands, and receive feedback/error messages from the onboard electronics. We recommend
that new users start with Cura LulzBot Edition as it includes a slicing
engine as well.
Slicers
These programs take the 3D model (typically STL/OBJ/etc) and
determine the 3D printer toolpath based on the options selected.
The slicing engine uses the nozzle diameter, movement speeds, layer
height, and other variables to determine the coordinates where it
needs to move, and the rates at which it will do so. This information
is exported out of the program as a GCODE file. The GCODE file
is a plain-text file with a series of text-based codes and a list of the
complete X,Y, and Z-axis coordinates used for printing the 3D model.
We recommend that new users start with Cura LulzBot Edition as it
includes the printer host as well.
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1.3. INSTALLING DRIVERS
1.3
Installing Drivers
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GNU/Linux and OS X users will not need to install a driver to communicate
with the LulzBot Mini 3D printer. Windows users will need to install
the drivers. Using Cura LulzBot Edition as your printer host and slicing
software is recommended, as the drivers will automatically be installed
during the Cura installation process. Download Cura LulzBot Edition
by visiting LulzBot.com/Cura. The drivers can also be downloaded from
LulzBot.com/downloads. A visual guide showing the driver installation
process can be found in our download section as well.
1.4
CAD and 3D Modeling Software
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LulzBot is not distributing a CAD or 3D modeling software package.
However, multiple Free/Libre Software packages are 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. Cura requires .STL/.OBJ files
sized in millimeters. If an .STL/.OBJ with inches as units is loaded into
Cura, the model will be scaled much smaller than expected. You can scale
the model by 25.40 to compensate. The software listed below outputs
millimeters as the unit by default.
FreeCAD
Website: http://www.freecadweb.org/
Although still in development, contains 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 OS X. The latest development
version is recommended.
OpenSCAD
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Website: http://openscad.org
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3D Printer Software
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OpenSCAD is different than FreeCAD in that it is script based. Rather
than using a GUI to generate CAD designs, OpenSCAD CAD designs are
created using script based renderings. Users with programming experience
would find this useful. Also, OpenSCAD uses a simple script language that
is easy for users with little or no programming experience to learn.
Blender
Website: http://blender.org
The most widely used Free/Libre Software 3D modeling software,
Blender is well documented with tutorials available on the Blender.org
website as well as found online.
1.5
Alternative Printer Host Software
OctoPrint
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Website: http://octoprint.org/
Octoprint is a printer host that uses a web-based interface to access and
control your 3D printer. Added web-cam functionality allows for time-lapse
videos and a live stream. Octoprint will run on GNU/Linux, Windows, OS
X based computers and can even run well on a Beagle Bone Black or a
RaspberryPi (inexpensive business-card sized computers).
BotQueue
Website: https://www.botqueue.com/
BotQueue works well for those users wanting to have a web-based
multiple 3D printer operation running off a queuing system.
MatterControl
Website: http://www.mattercontrol.com/
MatterControl is another printer host that currently runs on
GNU/Linux, Windows, and OS X. It features 2D and 3D model viewing,
a print queue, and print file organization and searching.
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1.5. ALTERNATIVE PRINTER HOST SOFTWARE
Source Files
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Aleph Objects, Inc., the maker of the LulzBot Mini 3D printer, completely
supports Free Software, Libre Innovation, and Open Source Hardware.
Along with the LulzBot Mini 3D printer being a Free Software and Open
Source Hardware design, it has been tested to work with 100% Free/Libre
Software. Our source code and design files are hosted on:
LulzBot Download Server http://download.lulzbot.com
LulzBot Development Server http://devel.lulzbot.com
Aleph Objects Code Repository http://code.alephobjects.com
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Cura LulzBot Edition
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Cura LulzBot Edition
2.1
Cura LulzBot Edition
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Installation and Setup
Cura LulzBot Edition is available for download on our website at
LulzBot.com/Cura. Uninstall any previous versions of Cura you may
have been using when upgrading. Cura is designed for Fused Filament
Fabrication (FFF) 3D printers. Fused Filament Fabrication is the term for
the process of laying down successive layers of extruded filament to create
a 3 dimensional object. As each layer of molten plastic is extruded into
place, it fuses with the previous layer. When first opening Cura, you will
be prompted to go through the First run wizard. This will consist of
selecting your printer, hot end type, and tool head type.
It is important to select the correct printer, hot end, tool head, and
if asked, the nozzle diameter as Cura uses custom profiles and machine
settings based upon the selections made.
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• Download the appropriate installer for your computer operating system. Installation instructions for each operating system are available
at LulzBot.com/Cura.
• Install Cura by
LulzBot.com/Cura.
following
the
instructions
available
at
• Start Cura by launching it from your list of installed applications.
If this is the first time that Cura has been used the “Configuration
Wizard” window will open.
• Select LulzBot Mini.
• Select Standard LulzBot Mini Press Next.
• Select finish.
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2.2. QUICK PRINT SETTINGS
2.2
Quick Print Settings
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Figure 2.1: Quick Print Settings
After setting up Cura for the first time, you will be shown the main interface
screen. (Fig. 2.1, page 23):
Material Selection
We have the different filament types separated by Material ease of use.
From the Material ease of use drop down, select ``All'' to view all our
pre-loaded filament slicing profiles. The Mini ships with a filament sample
for the first print. Refer to the included Quick Start Guide for the proper
“First Run” settings.
Different Filament Manufacturers
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Different manufacturers have different formulations for their specific brand.
These different formulations may have different ideal settings. We typically
consume 6kg - 10kg of filament when developing these profile settings. We
highly recommend using the filament brands listed in Cura LulzBot Edition.
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Cura LulzBot Edition
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Beautiful 3D printed objects start with reliable and consistent filament.
Our profiles will be good starting points for other manufacturers but they
may not be ideal and may need updating on your part.
Selecting a Quick Print Profile
The print quality settings can be found in the top left-hand corner of the
window. For most filaments, there will be Standard, High Speed, and
High Detail options. Some of the more exotic filaments may have fewer
profiles.
High Detail
Designed to give greater detail and finer objects. This will have a
smaller layer height, which will make each layer thinner, so that curves
seem more natural and walls seem less noticeable. This setting will
also require more layers to be laid down, increasing overall print time.
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Standard
Designed to give a balanced resolution, by increasing the layer height
and print speeds. This will make the organic curves slightly more
step-like than the fine setting, but will reduce printing time.
High Speed
Designed for the fast prints, where overall model finish is not of
concern. Most commonly used for quick iteration of designs found
in rapid prototyping.
Printing Support Material
The LulzBot Mini 3D printer is able to print models that have angles
and overhangs, even without support material depending on the overhang
distance and angle. Turn this option on if sections of your model are
extending in mid air. This will build up material underneath the portion
extending in mid air, preventing gravity from making it droop.
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2.2. QUICK PRINT SETTINGS
Brim
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Brim is used to increase surface area of the part you’re printing, thereby
ensuring proper part adhesion. This will print a single layer high edge
around the base of the part, helping first layer adhesion and minimizing
warping.
Load Model File
Select the 3D model you would like to print. Either use the Load Model
button or select File > Load Model. Once the file has been loaded, you
will see a 3D rendering of your object on the build platform. Select the
model to see the various options.
Model Orientation
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Move your model to change where it is printed on the build plate. Do this
by left clicking on the model and dragging it to the desired location. The
black outlined corner of the 3D print bed view represents the front left
hand corner of the build plate on your printer. You can view your model
from different angles by holding down the right mouse button and dragging.
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Cura LulzBot Edition
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Figure 2.2: Options after selecting model
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Rotate
The Rotate button will give you the ability to orient your model in along
all three axes. Once you click the rotate button, three circles will surround
your model. The red circle will allow you to rotate around the Z-axis. The
Yellow circle will rotate around the Y-axis. The Green circle will rotate
around the X-axis. Cura defaults to 15 degree increments. Hold Shift to
rotate by One Degree Increments. (Fig. 2.3, page 27)
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2.2. QUICK PRINT SETTINGS
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Figure 2.3: Rotating your Model
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Lay Flat
The Lay Flat button will ensure that the flat portion of your print is
securely attached to the bed. It is highly recommended to use this option
after rotating your model in the Z direction, as it will help prevent potential
adhesion issues during the print.
Reset
The Reset button will return your model to the original orientation as
defined by the CAD program used to create the model.
Scale
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The Scale button displays the model dimensions, along with the ability
to scale along the X, Y, or Z axes. Anything below the number 1.0 will
reduce the objects size, while anything above the number 1.0 will increase
the objects size. As a default, it will be set to uniform scaling. This will
cause the X Y and Z axes to be scaled by the same amount when you make
a change to any of them. To disable this, select the lock in the lower section
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Cura LulzBot Edition
of the scaling window.
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Figure 2.4: Scaling your Model
2.3
View Options
Different modes allow you to view your model in a variety of ways. This
can be helpful for spotting issues before the print even starts.
Normal
This is the standard view and shows the solid outer surfaces of the model.
(Fig. 2.5, page 29):
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2.3. VIEW OPTIONS
PR
Figure 2.5: View in Normal Mode
Overhang
OO
Overhang mode shows where your model may need support material. In
Fig. 2.6, page 29 the red highlighted areas show overhangs and more severe
angles and areas where support material is recommended. The overhang
threshold can be defined in Expert Settings.
Figure 2.6: View in Overhang
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29
Cura LulzBot Edition
Ghost
PR
Ghost view mode makes the model translucent to allow you to see what is
behind it.
Figure 2.7: View in Ghost
OO
Xray
X-ray allows you to look inside of the object. This is helpful for detecting
any manifold errors or other possible issues with your model. Problem
areas will be highlighted in red. (Fig. 2.8, page 31)
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30
2.3. VIEW OPTIONS
PR
Figure 2.8: View in Xray
Layers
OO
To view the tool path of your print head and to ensure no skipped layers or
gaps use this option. Use the slide bar on the right hand side of the window
to move up and down through the tool path layers. Click the icon below
it to view an individual layer at a time. If the Print support structure
option is activated in Cura, support structure will be shown in blue.
Figure 2.9: View in Layers
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Cura LulzBot Edition
PR
Figure 2.10: Viewing Cumulative Layers
OO
Figure 2.11: Viewing An Individual Layer
2.4
Starting Your First Print
Once you have your model, profile, and filament loaded, it is time for your
first print! Refer to the Quick Start Guide included with your 3D printer.
A PDF version is available at LulzBot.com/downloads.
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2.4. STARTING YOUR FIRST PRINT
PR
Figure 2.12: Control Screen
OO
Pausing Mid-Print
You will notice after you click the print button through Cura, it will
change to a pause button. When activated, it will pause your print and
automatically move your print head away from your object. This will allow
color changes or material changes mid print.
Automatic Bed Leveling
F
Before each print your Mini will go through a wiping and a probing
procedure in order to determine the slope/tilt of your bed. If your nozzle is
dirty or not cleaned properly, this will prevent the printer from being able to
create an electrical contact with the corners. Your Mini will automatically
retry the wiping and probing procedure if this happens, up to a maximum of
three times. If three consecutive wipes and probes have failed, the printer
will stop and a warning will sound. If your Mini does not re-wipe after
a failed probe, update your firmware. Directions for updating firmware
can be found in section 4.3 on page 64. If probe failures are happening
consistently, you should replace the wiping pad and/or adjust your wiping
and probing temps for that specific filament. See section 2.10 on page 48
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Cura LulzBot Edition
for details on changing these temps.
PR
Recommended Temperatures
Different filaments have different ideal temperatures for extrusion, bed adhesion, and part removal. Your LulzBot Mini will have these automatically
set when using our recommended profiles. We have found that for certain
materials a glue stick is required for successful bed adhesion and/or part
release. Glue stick can also be added to help first layer adhesion on any
material, and may be helpful for objects with a larger surface area.
F
OO
34
2.4. STARTING YOUR FIRST PRINT
Bed Preparation
ABS
PLA
HIPS
Laywoo-D3
bambooFill
corkFill
woodFill
Linen
Silk
Laybrick
bronzeFill
copperFill
Magnetic Iron PLA
Stainless Steel PLA
Conductive PLA
High Temp PLA
nGen
t-glase
Flexible Filaments
Nylons
Polycarbonate
Polycarbonate + ABS
INOVA 1800
n-vent
PVA
PC-Max
colorFabb_HT
colorFabb_XT
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Clean PEI
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Glue stick
Hot End Temp Bed Temp Removal Temp
230-250
195-215
230-250
175-195
185-195
185-195
185-195
195-205
165-175
175-195
225-235
225-235
220-230
220-230
215-230
220-230
220-240
240-260
215-230
220-270
260-300
260-280
235-255
225-245
180-200
240-270
260-280
240-250
110
60
110
60
60
70
60
60
60
60
60
60
60
60
60
60
85
60
50
110
110
110
75
60
60
100
110
80
OO
PR
Filament Type
50
45
50
45
50
50
50
50
50
45
50
50
50
50
50
40
60
45
35
50
50
50
50
50
45
50
50
50
Table 2.1: Recommended Temperatures
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Cura LulzBot Edition
2.5
Removing Your First Print
PR
After your first print has finished, wait for the part to cool down. Your
parts will be easier to remove if you allow your heated print surface to cool
to the optimal temperature. This will allow the plastic to contract, making
it easier to remove. The Y-axis will move forward once it reaches
the ideal print removal temperature.
Once the heated print surface has cooled, use the blue handled knife
that was included with your toolkit to remove the item. Carefully insert
the blade of the knife between the print and print surface. Once underneath
the part rotate the blade- lifting with the sharp edge under the part, to
gently pop the print off.
2.6
Full Settings
F
OO
When you first switch to Full Settings, Cura will need to know what
filament, manufacturer, and quality you wish to use. It will automatically
transfer our quickprint settings over to allow adjustments if one is selected.
IF A QUICKPRINT PROFILE IS NOT AVAILABLE, YOU WILL NEED
TO MANUALLY LOAD ONE. As new filament is released for sale in the
LulzBot store tested profiles will be available here: LulzBot.com/Cura.
Download the profile that matches your filament and quality needs and
load the file into Cura by selecting File > Open Profile. This will
automatically update all of the Cura settings for that specific filament.
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2.6. FULL SETTINGS
PR
Figure 2.13: Transferring a Profile
OO
Once the switch has been made to full settings, you will now have
access to a wide variety of options. You will notice 4 new tabs: Basic,
Advanced, Plugins, Start/End-Gcode. In the following sections we will
describe each option, and how they will affect your prints.
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Cura LulzBot Edition
PR
Figure 2.14: View in Full Settings
OO
2.7
Basic Tab Options
Layer Height
The thickness of each printed layer is known as the “Layer Height”. The
smaller the layer height, the smoother curves will appear. Larger layer
heights are better for bridging and overhangs. Smaller layer heights will
also increase print time, as it will take more layers to complete the object.
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2.7. BASIC TAB OPTIONS
PR
Figure 2.15: Differences in Layer Height
OO
Shell Thickness
This defines the number of vertical walls that comprise the outside of your
model. We recommend keeping this set to multiples of your nozzle width.
Your LulzBot Mini 3D printer is equipped with a 0.5mm nozzle. A setting
of 1.0mm or 1.5mm is a sufficient for most prints.
Enable Retraction
Retraction pulls filament out of the hot end upon travel moves– when the
print head moves from one area of the print to another without laying
down filament. We recommend keeping this on for all filament types, and
adjusting the retraction length and speed for the specific filament.
Bottom/Top Thickness (mm)
F
Also known as “Surface Layers” this will determine how thick the top and
bottom layers are. A larger number here will create a thicker top and
bottom surface which can be helpful for strength, bridging, and quality
purposes. We recommend keeping this number as a multiple of your layer
height.
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Cura LulzBot Edition
Fill Density
PR
This number is expressed as a percentage. 0% will give a completely hollow
print, while 100% will give you a completely solid object. We have found
that 20% to 40% fill density is functional for most prints.
Perimeters Before Infill
This option will change the order in which the infill and perimeters will be
printed. We recommend leaving this on.
Print Speed (mm/s)
Your overall printing speed can be adjusted here. This setting will be
overridden in certain parts of the print based upon your Advanced Speed
Settings. If no speeds are determined in the advanced settings tab, your
printer will default to this setting.
OO
Printing Temperature
This is where you will set the hot end temperature for your specific
material and manufacturer. It will be preset when using the recommended
quickprint profiles. This can be adjusted for fine tuning of different filament
manufacturers to help layer adhesion or stringing. See Recommended
Temperatures Table on page 35. Your hot end is capable of reaching a
maximum temperature of 300°C.
Bed Temperature
This setting controls the print surface temperature for your specific material.
These will be preset when using the recommended quickprint profiles. This
can be adjusted for fine tuning printed object adhesion and release from
different filament manufacturers. See the Recommended Temperatures
Table on page 35. The print surface is capable of reaching a maximum
temperature of 135°C.
Support Type
F
Some models will require support material in order to print properly. This
will usually occur when an object has an angle in relation to the build plate
40
2.7. BASIC TAB OPTIONS
between 0 to 45 degrees. It is highly recommended to orient or design your
object so that it minimizes or eliminates the need for support.
PR
Touching Buildplate
This causes the support material to build up between the heated bed and
the object. The red example is Touching Buildplate. (Fig. 2.16, page 41)
Everywhere
This prints support material between the heated bed and object as well as
between the object and itself. The green example is Support Everywhere.
(Fig. 2.16, page 41)
OO
Figure 2.16: Support Types
Platform Adhesion Type
F
Some models have a small surface area contacting the plate. This can
create adhesion issues causing your part to pop off at some point during
the print. To fix this, use either Brim or Raft. Raft is better used when a
model has small heated bed contact points and overhangs.
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Cura LulzBot Edition
Brim
PR
Brim will create a single layer of filament, contacting and surrounding your
model. This will increase the surface area of the part contacting the build
platform thereby preventing it from popping off the heated bed. Brim will
also help in situations where you are seeing corner lift. Brim settings can
be adjusted in the Expert Settings options.
Raft
Raft will generate a layer (or more) of material underneath your object.
Raft was more often used before the addition of heated plates to increase
surface area and reduce warp. Raft settings can be adjusted in the Expert
Settings options.
Filament Diameter
OO
The filament diameter setting is one of the more important settings. Make
sure that you update this value periodically with your average filament
diameter. While your filament may be referred to as 3mm, it is more
likely going to be near 2.85mm +/- 0.1mm. You will want this to be an
accurate average, as it will allow your printer to correctly calculate how
much filament it is pulling into the hot end. The default value should be
set to 2.85mm.
Filament Flow %
This controls how much filament your printer is extruding in relation to
speed. This setting is mainly used to adjust for filament density variations.
This may need to be changed when switching between different manufacturers or types of filament to adjust for die swell. It is recommended to
make small adjustments between prints for fine tuning.
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2.8. ADVANCED TAB OPTIONS
2.8
Advanced Tab Options
OO
PR
Figure 2.17: View of Advanced Tab
Nozzle Size (mm)
This defines your nozzle size. The slicing engine uses this value combined
with your other settings to determine how quickly to feed filament into
your hot end, and how to generate the tool path. The Mini ships with
a 0.5mm nozzle.
Retraction Speed (mm/s)
Retraction Speed determines the speed at which your filament is reversed
out of the hot end for travel moves and when changing direction during
printing. We recommend keeping this set to less than 25mm/s to help
protect the gears.
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Cura LulzBot Edition
Retraction Distance
PR
Retraction Distance determines how much filament is pulled out of your hot
end on travel moves and when changing direction. You will want to adjust
this depending on temperature settings and filament type. Higher thermal
retaining filaments such as PLA behave better with a longer retraction
distance. We have found anywhere from 1mm to 3mm is a good starting
range.
Initial Layer Thickness
OO
This will control how thick your first printed layer height is printed onto
the heated bed. A larger initial layer height is more forgiving and will help
first layer adhesion. All of our standard profiles have a 0.425mm initial
layer height. This eliminates the need for adjustments when switching
between filaments. Your LulzBot Mini automatic bed leveling system could
be affected if you change this from the standard profiles. Adjust at your
own risk. If you want to change first layer “squish” see Z Offset 4.4, page
65
Initial Layer Line Width
This will control how wide your first extruded filament path is for the initial
layer. A wider line width will help with bed adhesion. We have found 125%
to be a good starting place. For models with moving, printed in place
parts, a smaller initial layer line width is recommended. Your LulzBot
Mini automatic bed leveling system could be affected if you change this
from the standard profiles. Adjust at your own risk. If you want to change
how much your first few layers “squish” to the sides, see Z Offset 4.4, on
page 65
Cut Off Object Bottom (mm)
F
This setting is used to help print models that were not specifically designed
for FFF printing. In particular, it is for models that do not have a flat
surface to adhere to the plate. It will sink your object Xmm into the build
plate, creating a nice flat surface to begin your print. You can also use this
option to remove the lower portion of your model, or if carefully measured,
44
2.8. ADVANCED TAB OPTIONS
cut your part in half for printing one object as two (or more) pieces. (Fig.
2.18, page 45)
OO
PR
Figure 2.18: Cutoff Example
Dual Extrusion Overlap
This will determine how far your Dual Extruders will overlap when laying
down material. This will help adhesion between the two different colors or
types of filament. This setting is only used when a printer is equipped with
two hot ends and two extruders.
Travel Speed
This setting will determine how fast your print head moves while not
extruding filament. A normal travel speed of 125mm/s - 175mm/s is
recommended.
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Cura LulzBot Edition
Bottom Layer Speed
PR
This will control your initial layer speed. In general, a slower initial layer
speed will help with first layer adhesion.
Infill Speed
This is how fast your print head speed will be while laying down the interior
portion of your model. Faster speeds are usually tolerable here, as none of
the infill will be visible from the outside of your object. If you go too fast
compared to your inner and outer shells, you can have adhesion issues or
globs of filament left behind from the print head.
Outer Shell Speed
OO
This will be the outermost surface of the model. This is the most important
speed setting, as it controls the speed of your print head on the visible layers.
As a general rule of thumb, the slower you go the better looking print you
will get.
Inner Shell Speed
This affects vertical walls that are in between the outer shell and infill. This
will not be visible but will help support the outer shell and the infill. We
recommend keeping this speed setting between your infill speed and your
outer shell speed.
Minimal Layer Time
This will determine a minimum amount of time your printer will spend
laying down each layer. If your layer print time falls below this your printer
will automatically slow down to reach this time before moving onto the next
layer. Tweaking this can help get cleaner, crisper prints. If the tool head
moves too slowly and lingers over the object, it can cause those areas to
droop from excess heat, reducing final quality and finish.
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46
2.9. PLUGINS
Enable Cooling Fan
PR
Enables operation of your extruder active cooling fan. The fan settings can
be adjusted in the Expert Settings options. See section 2.14 on page 52
for details. In general, smaller parts will require more cooling for proper
results.
2.9
Plugins
OO
Plugins are custom settings which will alter your print at specific
points. The two that come preloaded with Cura are Tweak at Z, and
Pause at Height. More plugins and information can be found here:
http://wiki.ultimaker.com/Category:CuraPlugin To activate one of
these highlight the desired plugin and click the drop-down arrow directly
below the Plugins box. These plugins affect how GCODE is generated. Use
at your own risk. Be sure to turn these off before switching back
to quick print mode. They will affect quickprint settings if
left on.
Figure 2.19: View of Plugins
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Cura LulzBot Edition
Tweak at Z
PR
Make basic changes at specified Z heights. You can define the Z height or
layer count at which you want to make a change. Then choose how you
would like to change your settings. You can alter temperatures, fan speeds,
and print speeds. Fine tuning these for specific STL files, can produce
cleaner prints.
Pause at Z Height
Pause your print at a specified height. You can also specify where to
move the print head and how much filament to retract. This will prevent
“blobs” from accumulating on your print while paused. This setting is most
commonly used when switching colors of filaments in the middle of a print.
2.10
Start and End Gcode Settings
OO
Custom Gcode allows for complex automatic printer movements and operations. By adding custom Gcode into the start or end of your file, you
can alter how it prints. A comprehensive list of Gcode commands can be
found here: http://reprap.org/wiki/G-code We recommend new users
to leave this as provided in the profiles at LulzBot.com/download
Mini Specific Considerations
Please be cautious when changing any of these start and end GCODE
settings. This is where your automatic bed leveling commands are stored.
If improperly altered, your printer will no longer automatically compensate
for the heated bed position and can potentially damage components on
the printer. If you are uncertain of the change you are trying to make
to start/end GCODE, please contact us at Support@LulzBot.com beforehand.
Changing Wiping and Probing Temperatures
F
We have set wiping and probing temperatures that we have found work well
with specific types of filament and filament manufacturers. If you are
using a type and/or manufacturer of filament not listed in the
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2.11. EXPERT SETTINGS
PR
quickprint settings, you may need to adjust these temperatures
for optimal probing. In the start GCODE section, there will be three
separate temperatures you can adjust. What these GCODE lines do will
be described in the green text to the right of the command. The ones you
will want to adjust are:
• M109 SXXX ; soften filament for z homing
• M104 SYYY ; wipe temp
• M109 SZZZ ; heat to probe temp
By changing the variables (XXX, YYY, ZZZ), you can change what
temperature your printer will soften, wipe, and probe. Our temperatures
for softening, wiping, and probing will be a good starting point for other
manufacturer’s filament. When making adjustments, we recommend +/5°C changes at a time. Be sure to watch the probing sequence when
experimenting with new temperatures.
OO
2.11
Expert Settings
Expert settings will give you more specific options for your retraction, skirt,
active cooling, infill, support, brim, raft, and special settings. To gain
access to this section you go to Expert > Open Full Settings or on your
keyboard press Control + E.
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Cura LulzBot Edition
PR
Figure 2.20: View Expert Settings
OO
2.12
Retraction
Retraction pulls filament out of your nozzle when it is not extruding to
prevent your print head from dripping on your object. This section is
where you will control how your extruder retracts its filament.
Minimum Travel
This sets the minimum travel distance of your print head in order to retract.
If your print head is not moving at least this far during travel moves, it
will not retract.
Combing
F
This option prevents your print head from traveling over holes in the
X/Y plane when printing. This will slightly increase print time, but will
prevent strings from getting caught on the holes during travel moves. We
recommend keeping this setting on.
50
2.13. SKIRT
Minimal Extrusion Before Retracting
PR
This will prevent a retraction move, if your extruder has input X mm of
filament into the hot end. This is length of filament input into the hot end,
not length extruded.
Z Hop When Retracting
This will raise your print head Xmm while retracting. This setting helps
prevent ooze and strings from being deposited on your print.
2.13
Skirt
Skirt creates a line around the outside of your object. This is used to prime
the extruder, in order to prevent missed filament at the beginning of a print.
Leave this setting on. Turning this setting off will allow for utilizing the
full build volume.
OO
Line Count
This will define the number of loops the Skirt creates around the outside
of your object. Smaller models will require more loops to properly prime
the extruder.
Start Distance
This will define the distance away from your model that the skirt will
be created. The distance from the model will consume a portion of the
maximum build volume in the X/Y plane.
Minimal Length
This will define the minimum extruded line length for the skirt. This will
override your line count, producing as many lines as required to reach the
minimal length.
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Cura LulzBot Edition
2.14
Cool
PR
This section will define how your extruder cooling fan will operate during
the print. If your print speeds are slowed down due to minimal layer time,
the fan will run between minimum and maximum speed based upon how
much the layer is slowed down.
Fan on at Full Height
This is your Z height where your fan will be turned on to its minimum
percentage setting. Especially helpful with high temperature retaining
filaments such as PLA. This will be scaled between 0%, and your minimum
fan speed based upon layer height; with it being disabled for the first layer.
Fan Speed Min
OO
This will be the speed your fan runs when enabled at full height. Once the
Z height is reached for Fan on at Full Height, this will be the speed your
fan runs at.
Fan Speed Max
This is the fastest speed at which your fan will ever run. When your print
speed is slowed down due to minimal layer time, your fan will run between
minimum and maximum speed. The maximum fan speed is reached when
your printer must be slowed by 50% or greater.
2.15
Support
You define how your support material is generated here. You must have
some form of support turned on in the basic settings in order for these
settings to have an effect.
Structure Type
F
You can choose between a Grid or a Line pattern for your support material.
The grid will be a checkerboard pattern in the X and Y direction. The
52
2.16. BLACK MAGIC
PR
line option will produce lines in along the Y-axis for support. The grid
will provide stronger support than the line option, but will be harder to
remove.
Overhang Angle for Support
This will determine where support material is generated. In general you
will be able to print a model with 45 to 90 degree angles in relation to the
bed without support. A conservative setting for this is 45 degrees.
Fill Amount
This will determine how dense your support material is printed, similar to
Infill Percentage. The higher the percentage, the better support, but it will
be harder to remove the support material, will use more material, and will
lead to a longer total printing time.
OO
Distance X/Y
This will determine how far away from your object in the X/Y plane that
the support material is being placed. A larger distance entered here can
make the material easier to remove, but it will not support as well.
Distance Z
This will determine how far away your support material is from your object
in the vertical direction. A smaller number here makes for better support,
but makes it harder to remove.
2.16
Black Magic
This section allows you to transform your model into a hollow shell, a single
layer thick.
Spiralize the Outer Contour
F
This causes your Z-axis to be constantly moving upward as printing your
single outer wall shell. The results are no layer change lines, giving a much
53
Cura LulzBot Edition
smoother surface. This setting is typically only used for artistic objects as
they will be fragile.
PR
Only Follow Mesh Surface
This will cause your print to follow the outside of your model, building it
completely hollow with a single wall outer shell. This will also ignore the
base layer, and the top layer. The difference between this and Spiralize, is
that the Z-axis moves regularly. That is, it prints a layer and then moves
up vertically to begin the next one.
2.17
Brim
OO
Brim circles the base of the print while making contact, helping adhere the
print to the heated plate. This is only one layer thick, and easily removed
post-print. The distance around the base of the object will consume some
of the maximum build volume in the X/Y plane. This section defines how
the brim is formed when brim is activated in basic settings.
Brim Line Amount
This will determine the distance the brim will cover around the outside of
your object. The more brim used, the better your part will adhere to the
plate.
2.18
Raft
Raft is a platform built underneath your object, designed to help adhesion
and prevent warping. It will lay down support material, and then a
platform on top of the supports. Your model will be built on top of this
platform. The bottom surface of your printed part will not be as clean or
as even when using this option. Raft is typically not required.
Extra Margin
F
This determines the distance around the outside of your object that the
raft is created. Can be helpful for ensuring no warping of the lower layers.
54
2.18. RAFT
Line Spacing
PR
This will determine the spacing between “support” lines for the raft. A
small spacing makes the support structures closer together improving
strength of the raft, but uses more material.
Base Thickness
This defines the raft thickness.
Base Line Width
This will define how wide your “support” material is for the raft. This
setting will determine how well the surface layers of the raft print.
Interface Thickness
OO
This will determine how thick the surface layers of the raft are. The surface
layers are the platform that is built upon the supports.
Interface Line Width
This determines the width of the top layers of the support platform. In
general, you can keep this set to your nozzle size, as surface quality of the
removable raft is not important.
Airgap
This will define the distance between your raft and your print. A larger
gap will make your part easier to remove, but will make the bottom of your
print look worse.
Surface Layers
This will determine the number of layers that create the “platform” of your
raft. If you have a wide line spacing, you may want to increase this number
to ensure a solid platform.
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Cura LulzBot Edition
2.19
Fix Horrible
PR
These are some of the more advanced and experimental options. They are
designed to help repair models with errors to make them suitable for 3D
printing. They do not always work. Please be cautious when using these
options as they can have unintended effects on your print quality.
Combine Everything (Type-A)
This will attempt to fix all external mesh errors, while keeping internal
holes intact. This can accidentaly fill in intentional internal holes.
Combine Everything (Type-B)
This will ignore all internal holes of the model and only focus on the external
holes. This is helpful when only the outside finish of the model is important.
OO
Keep Open Faces
This will ignore all manifold errors in the object. It can create issues
generating the GCODE as Cura does not know how to interpret the open
holes. This option should only be used if you are sure that the holes in the
mesh are intended. In general, you should not use this option.
Extensive Stitching
This causes Cura to automatically add triangle meshes in an attempt to fix
manifold errors. This algorithm will greatly increase GCODE generation
time and may end up adding in un-intended meshes. It is recommended
that you repair your model through MeshLab, FreeCAD or your preferred
CAD program before attempting this option.
2.20
3D Model Attribution
Octopus_v04.stl
F
Octopus_v04.stl by yeoldebrian was used under the CC BY-SA license
thingiverse.com/thing:7900
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2.20. 3D MODEL ATTRIBUTION
Rocktopus.stl
PR
Rocktopus by Kent Johnson is licensed under CC BY-SA 4.0 and derived
from work by dietz1 and yeoldebrian. LulzBot.com/rocktopus
Support.stl
Support Model by Aleph Objects, Inc is licensed under CC BY-SA 4.0
license.
Overhang_test.stl
Make: 2015 3D Printer Shoot Out Test Models by MAKE was used under
the CC BY-SA license. thingiverse.com/thing:533472
X_end_idler_Mini_v2.6.stl
F
OO
X_end_idler_Mini_v2.6.stl by Aleph Objects, Inc is licensed under CC
BY-SA 4.0 license.
57
F
OO
PR
PR
Maintaining Your 3D Printer
F
OO
Maintaining Your 3D Printer
3.1
Overview
PR
Little maintenance is required keep your LulzBot Mini 3D printer running.
Depending on your rate of use you will want to perform a quick check of
your printer every 2 to 4 weeks. The following maintenance guidelines will
keep your printer printing quality parts.
3.2
Smooth Rods
Wipe the smooth steel rods with a green scrub pad, clean cloth, or paper
towel. The linear bushings leave a solid lubricant that builds up over time.
Squeaking noises while the printer is in operation is likely a sign that the
smooth rods need to be cleaned. NOTE: Never apply any lubricant
or cleaning agent to the smooth rods as the bushings are
self-lubricating.
PEI Print Surface
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3.3
The PEI print surface is the key to well-balanced part adhesion and release.
While long-lived, it will need to be replaced periodically and is considered
a consumable item. To clean the PEI print surface, wipe clean with
watered-down Isopropyl Alcohol 10:1 IPA to water ratio and a clean
cloth. If you encounter prints lifting from the PEI surface, use fine grit
sandpaper, typically 2000-2500 grit to clean the PEI print surface. We
do not recommend printing on bare glass, as it can lead to glass bed
damage or failure. Never use acetone to clean the PEI print surface as
doing so can damage the film. You can find our maintenance and guides
here: LulzBot.com/learn
3.4
Hobbed Bolt
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Filament is pulled through the extruder by a hobbed (or toothed) bolt.
After repeated use, the teeth of the hobbed bolt can become filled with
plastic. Using the dental 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.
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3.5. BELTS
3.5
Belts
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Over long periods or after extensive relocating of the printer you may need
to re-tighten the belts on your 3D printer. For the X-axis, using the 2.5mm
hex driver, loosen one of the belt clamps. The belts clamps are located on
the X-axis carriage. To loosen the belt clamp, loosen the M3 screws on the
clamp. Using the needle nose pliers, pull the belt tight. While holding the
belt tight, tighten down the M3 screw. The Y-axis belt can be tightened
using the same steps as the X-axis using the belt clamps found on the
bottom of the Y-axis plate. Make sure not to over tighten the belts as this
can cause binding and prevent full movement.
3.6
Hot End
3.7
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The hot end should be kept clean of extruded plastic by removing melted
plastic strands with tweezers. If melted plastic builds up on the hot end
nozzle you can clean it by raising the head off the build plate, and heating
to extrusion temperature. Using a thick leather glove and a blue shop towel,
carefully wipe off the outside of the hot end. Never use a metal wire brush
on your hot end as it can potentially short the control board.
Nozzle Wiping Pad
Over time the nozzle wiping pad will become filled with plastic residue. The
pad can be flipped over once and will need to be replaced when both sides
are covered in plastic. Replacement nozzle wiping pads are available in our
online store at http://LulzBot.com. Do not attempt to use a plastic or
polymer based wiping pad as it can melt, rather than clean the nozzle. A
metal wiping pad should never be used, as it can cause electrical shorts. If
the nozzle is not clean during the bed-level calibration, it process will fail.
3.8
Bed Leveling Washers
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Keep the washers mounted on each corner of the print surface clean and
dust free by wiping them periodically with Isopropyl Alcohol (IPA), or a
clean dry cloth. If the bed leveling washers are not clean during the bed
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Maintaining Your 3D Printer
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calibration process the print surface or tool head may be damaged. Never
attempt to clean the bed leveling washers during the probing sequence as
it may lead to personal injury.
3.9
Cooling Fans
Every 2-4 weeks carefully clean your hot end cooling fans by powering off
the 3D printer and unplugging the tool head from the extruder harness.
Gently blow any dust away with short bursts with a can of compressed air.
3.10
Control Box
If dust is evident on the control box vents, unplug the printer and use short
bursts of compressed air to blow out any dust.
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Advanced Usage
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Advanced Usage
4.1
Intro
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After you become familiar with printing using the default settings, a few
advanced techniques may help in getting better and more consistent prints
from the LulzBot Mini 3D printer. Some of these instructions are items
and materials not included with the Mini. With any of these additional
items or materials, follow safety and usage guidelines as instructed by the
manufacturer.
4.2
Changing nozzles
4.3
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Hot end related issues will not be covered under warranty after nozzle
changes.
Your hot end is equipped with a 0.50mm nozzle. This nozzle diameter
will print faster than a 0.35mm nozzle. Purchase a tool head from
LulzBot.com with an alternate nozzle diameter for quick, easy, and simple
changes.
Due to the specific torque of 30 inch pounds required to tighten the
nozzle when removed, removing the nozzle is not recommended. Failure to
properly tighten the nozzle to the specific recommended torque may lead
to leaks or damage if over-tightened.
Firmware Flashing
We include the latest version of 3D printer firmware with each update of
Cura LulzBot Edition. In order to update your firmware:
• Download the latest version of Cura LulzBot Edition from
LulzBot.com/Cura.
• Install Cura by following the specific instructions for your operating
system.
• Start Cura by launching it from your list of installed applications.
• Add a new machine by selecting Machine > Add New Machine.
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• Select LulzBot Mini.
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4.4. Z OFFSET
• Select the appropriate tool head.
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• Install the latest stable firmware by selecting Machine > Install
Default Firmware.
4.4 Z Offset
Your LulzBot Mini 3D printer has the ability to change the first layer
height (Z offset) directly through Cura. In the lower right hand corner of
the Control Window in Cura, enter the following commands. (The green
text explains the command, do not enter it.)
• M851 ; This will report your current Z offset
• M851 ZXXX ; This will update your Z offset to XXX
• M500 ; Save new offset
4.5
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To decrease the Z-offset between your nozzle tip and the print surface
(decreasing the gap,) subtract from your current offset when changing
XXX. To increase the Z-offset between the nozzle tip and the print surface
(increasing the gap,) add to your current offset when changing XXX. When
updating your offset, be sure to make small changes between prints. We
recommend making changes using small, 0.1 mm increments at a time.
Bed Adhesion
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You may find that during printing, printed objects lift off the print surface
on the corners. Activate the Brim setting in Cura to help increase the
surface area of the first layer of the print to improve part adhesion. If
the corners of the printed object still lift, clean the PEI surface with
IPA/ Isopropyl Alcohol and sand the surface with fine 2000-3000 grit
sandpaper. While almost all 3D printing filaments will adhere well to
the PEI print surface, some materials may need an application of a
PVA glue solution/gluestick for improved print adhesion. These materials
include nylon- and polycarbonate-based filament. Flexible materials such
as Ninjaflex, SemiFlex, and some co-polyester-based filaments can adhere
too well and can be released easier from the PEI print surface with an
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Advanced Usage
application of a PVA glue solution/glue stick to the heated bed prior to
starting the printing process.
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ABS/Acetone Glue
Acetone is not included or required with the LulzBot Mini 3D printer.
Acetone and ABS solution is NOT recommended anymore, as the PEI
print surface works well without it.
Glue stick/PVA Glue solution
4.6
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While almost all 3D printing filaments will adhere well to the PEI print
surface, Nylon-, Polyester-, polycarbonate-, and Amphora™ -based filament
print adhesion can be improved with the application of an unscented PVAbased glue solution/glue stick. Flexible filaments such as NinjaFlex® and
SemiFlex™ can adhere too well and require an application of PVA-based
glue to the print surface for easy print removal. Failure to properly treat
the print surface can lead to a permanent bond to the PEI print surface
and will require replacement which may not be covered under warranty.
Using 1.75mm filament
Your LulzBot Mini 3D printer is set up to use 3mm plastic filament by
default and may be capable of printing 1.75mm filament with no hardware
modification. While many of our advanced users are able to do so, your
results may vary. More information can be found in our User Forums at:
https://forum.lulzbot.com/viewtopic.php?f=16&t=1923
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Hardware and Software Source Code
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Hardware and Software Source Code
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The LulzBot Mini 3D printer is a Free Software and Open
Source Hardware design.
All of the source files are available at
http://download.lulzbot.com/Mini including:
• The latest version of this document, with LATEX source code.
• 3D models and print files for all of the printed parts in .stl, .gcode,
and other original source files.
• 3D calibration objects and random novelties.
• Design files for all electronics and machined parts.
– LulzBot Hexagon Hot End
– RAMBo electronics
– Various spec sheets
• Bill of materials including every part needed to build the printer.
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– Mini
– LulzBot Hexagon Hot End
• Drawings of components.
– Aluminum extrusions
– LulzBot Hexagon Hot End
– Bed plate
• Software binaries and source code for GNU/Linux and others.
– Cura LulzBot Edition
– Marlin
• Cura LulzBot Edition Print Profiles (vendor- and filament-specific
configuration files).
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– LulzBot.com/Cura
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3D Printer Support
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3D Printer Support
6.1
LulzBot
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For common technical support questions for your LulzBot Mini 3D printer
please visit LulzBot.com/support. Also, visit Forum.LulzBot.com for
support and tips from the LulzBot 3D printer community. If you have further questions, e-mail our support team at Support@LulzBot.com. Please
completely read this manual before contacting for support questions or
help. The latest version of this information guide is also available at
LulzBot.com/Download. You can also find more information including images, videos, and updated versions of this manual at LulzBot.com/Support.
6.2
Support
Email: Support@LulzBot.com
Phone: +1-970-377-1111 x610
Regional Phone Numbers
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6.3
The full list of regional phone numbers is available at
LulzBot.com/contact-us A brief list can be found in this guide in
Section 8.3.
6.4
Community
Community Support and Resources
• LulzBot 3D printer forum: Forum.LulzBot.com
• LulzBot Online Community: LulzBot.com/community
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Warranty Information
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Warranty Information
7.1
Warranty
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Warranty information for your LulzBot Mini 3D printer can be found at
https://www.lulzbot.com/support/warranty
Extended Warranty
Optional extended warranty terms are available for purchase at
https://www.lulzbot.com/store/parts/lulzbot-mini-extended-warranty.
7.2
Modification Warning
WARNING: At Aleph Objects, Inc., we respect your freedom to modify your
LulzBot desktop 3D printer. However, any modifications or attempted
repairs that cause damage are not covered under the Warranty.
Questions? Contact Technical Support by emailing Support@LulzBot.com
or by calling +1-970-377-1111.
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Contact Information
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Contact Information
8.1
Support
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Email: Support@LulzBot.com
Phone: +1-970-377-1111 x610
8.2
Sales
Email: Sales@LulzBot.com
Phone: +1-970-377-1111 x600
8.3
Regional Phone Numbers
A complete list of regional
LulzBot.com/contact-us.
phone
numbers
is
available
at
• Australia (Sydney): +61-280730598
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• Canada (Toronto): +1-647-560-0006
• China (Shenzhen): +86-75586243890
• Great Britain (London): +44-2036033166
• Mexico (Mexico City): +52-5541708259
• Netherlands (Amsterdam): +31-208004975
• Spain (Madrid): +34-912901413
• Switzerland (Zurich): +41-445087565
• United States (Loveland): +1-970-377-1111
8.4
Websites
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Aleph Objects, Inc., makers of the LulzBot brand of 3D Printers:
AlephObjects.com
LulzBot 3D Printers and parts:
LulzBot.com
Forum.LulzBot.com
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Index
Symbols
bill of materials, 68
Black Magic, 53
Blender, 18
blowers, 62
BotQueue, 18
bottle, 65
Bottom Layer Speed, 46
Bottom Thickness, 39
Brim, 25, 42, 54
brim, 65
burns, viii
bushings, 60
.gco, 16
.gcode, 16
1.75mm filament, 66
3D models, 25
A
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ABL, 33
ABS, 66
acetone, 61, 66
address, 74
Adhesion Type, 41
Advanced Options, 43
advanced techniques, 64
Airgap, 55
aluminum extrusions, 68
AMF, 25
Australia, xiii
auto-leveling, 61
Automatic Bed Leveling, 33
F
B
Base Line Width, 55
Base Thickness, 55
Basic Options, 38
bed adhesion, 66
bed plate, 68
bed temperature, 40
belts, 61
C
CAD, 17
calibration, 68
Combine Type-A, 56
Combine Type-B, 56
Combing, 50
community support, 70
configs, 68
contact, 74
contact info, 74
Cooling, 52
Cura, 22
Cura LulzBot Edition, 22, 68
Cura Plugins, 47
Custom Gcode, 48
Cut Off Object, 44
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INDEX
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D
damage, 72
download, 16, 68
driver, 16
Dual Extrusion Overlap, 45
E
electronics, viii, 62, 68
Enabling Cooling Fan, 47
End Gcode, 48
Expert Settings, 49
extended warranty, 72
extensive stitching, 56
Extra Margin, 54
extruder, viii
extruder jam, 60
H
hardware, 68
hazards, viii
heater block, viii
Hexagon, 68
hexagon, 68
High Detail, 24
high resolution, 64
High speed, 24
hobbed bolt, 60
hot end, 61, 64
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F
failed repair, 72
fan, 62
Fan Settings, 52
Fans, 52
FCC, xii
filament, 23
Filament Diameter, 42
filament vendors, 23
Fill Amount, 53
Fill Density, 40
first layer height, 65
First Print, 32
Fix Horrible, 56
Flow Rate, 42
Follow Mesh Surface, 54
forums, 70
FreeCAD, 17
Freenode, 70
Full Settings, 36, 49
G
g-code, 16
GCODE, 16
gcode, 68
Ghost View, 30
glass, 60, 61
glue stick, 66
GNU/Linux, 16–18
I
ICES, xii
Infill Speed, 46
Initial Layer, 44
Initial Layer Width, 44
Inner Shell Speed, 46
installation, 22
Interface Line Width, 55
Interface Thickness, 55
IPA, 65
IRC, 70
Isopropyl Alcohol, 60
Isopropyl alcohol, 65
L
F
latex, 68
Layer Height, 38
layer height, 24
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INDEX
Overhang Angle, 53
Overhang View, 29
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layers view, 31
leveling, 61
Line Count, 51
Line Spacing, 55
Load Model, 25
load model, 25
lubricant, 60
P
Pause at Z Height, 48
pause print, 33
pausing in the printing process, 33
PEI, 65
PEI surface, 60
phone number, 74
Polycarbonate, 65
power supply, viii
print cooling fan, 62
print profiles, 68
Print Speed, 40
printed parts, 68
printer host, 18
printer hosts, 16
printing temperature, 40
probe, 61
probing, 61
probing temperature, 48
PVA, 66
M
maintenance, 60
Marlin, 68
material selection, 23
MatterControl, 18
Minimal Layer Time, 46
Minimum Travel, 50
Minmal Length, 51
modification, 72
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N
New Zealand, xiii
NinjaFlex, 65
normal view, 28
novelties, 68
nozzle, 61, 64
nozzle cooling fan, 62
Nozzle Diameter, 43
Nozzle Size, 43
nozzle wipe, 61
Nylon, 65, 66
Q
quick print profile, 24
Quick Print Settings, 23
R
Raft, 42, 54
RAMBo, 62, 68
Removing a Print, 36
RepRap, 70
resolution, 24
Retraction, 39, 50
Retraction Distance, 44
Retraction Speed, 43
Rotating Model File, 26
O
F
OBL, 25
OctoPrint, 18
Open Faces, 56
OpenSCAD, 17
operating system, 16
orientation, 25
OS X, 16–18
Outer Shell Speed, 46
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INDEX
V
Vase Mode, 53
View Options, 28
W
warnings, viii
warping, 65
warranty, 72
white glue, 66
Windows, 16–18
wiping pad, 61
wiping temperature, 48
wires, viii
X
X-ray View, 30
Z
Z hop, 51
Z offset, 65
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S
school glue, 66
SemiFlex, 65
Shell Thickness, 39
Skirt, 51
slicers, 16
slicing, 16
slicing profiles, 68
smooth rods, 60
software, 16, 18, 68
Source Code, 68
source files, 19
Spiralize, 53
Standard, 24
Start Distance, 51
Start Gcode, 48
STL, 17, 18, 25, 68
Stringing, 50
Support, 53
support density, 53
support infill, 53
Support Material, 24, 52
Support Settings, 52
Support Type, 40
Support X/Y, 53
Surface Layers, 55
T
F
t-glase, 65
technical support, 70
temperature, viii
Temperatures, 34
terms and conditions, 72
threaded extension, 64
Top Thickness, 39
Travel Speed, 45
Tweak at Z Height, 48
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Glossary
.GCODE The file extension for G-Code files
Cura Cura LulzBot Edition is a cross-platform software package that
combines a slicing engine with a printer host interface.
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.
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ABS Acrylonitrile butadiene styrene thermoplastic. Usually extrudes at
230°C with the Budaschnozzle and 240°C - 250°C with the LulzBot
Hexagon Hot End.
Acetone A colorless, volatile, flammable liquid ketone, (CH3)2CO, used as
a solvent for ABS.
CAD Computer Aided Design
FFF Fused Filament Fabrication– the process of laying down successive
layers of extruded filament to create a 3 dimensional object. As each layer
of molten plastic is extruded into place, it fuses with the previous layer.
Filament Plastic material in a “string” like form, as it is fed to the printer.
Free Software Free Software (or Free/Libre Software) can be thought of as
“free as in free speech, not just free as in free beer”, although most Free
Software is available for no cost. Free Software can be copied, modified and
is freely available for download.
GCODE The common name for the most widely used CNC programming
language.
F
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.
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GLOSSARY
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Heater resistor A special type of resistor that is used to apply heat in a
small area.
HIPS High-impact polystyrene. Usually extrudes at 230°C with the
Budaschnozzle and 230°C with the LulzBot Hexagon Hot End
Hot end The hot end is the whole part where the plastic melts, including
the nozzle, heater block, thermistor, and heat sink. The LulzBot Hexagon
Hot End comes standard on the Mini.
Layer height The thickness of each individual deposited layer of the threedimensional model when cut with a slicing program.
Laywoo-D3 Wooden filament similar to PLA. Forty percent of its content
consists of recycled wood. Usually prints at 180°C to 210°C. Color can
be changed by varying the extrusion temperature.
Libre Innovation Aleph Objects uses Free/Libre Software to build and
improve Open Source Hardware so that everything we create is free to
be viewed, copied, and/or modified by anyone.
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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.
Open Source Hardware Open source hardware is hardware whose design
is made publicly available so that anyone can study, modify, distribute,
make, and sell the design or hardware based on that design. The
hardware source, the design from which it is made, is available in the
preferred format for making modifications to it. For more information
visit http://www.oshwa.org/definition/.
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PLA Polylactic acid is a corn-based biodegradable polymer. Usually
extrudes at 185°C with the Budaschnozzle and 205°C with the LulzBot
Hexagon Hot End.
Polycarbonate A strong and impact-resistant thermoplastic. Usually extrudes at 300°C.
PTFE Polytetrafluoroethylene is a synthetic fluoropolymer used in the
Budaschnozzle for it’s low coefficient of friction. This limits the TAZ 14 Budaschnozzle top extrusion temperature to 250°C. The LulzBot Mini
does not use a hot end with a PTFE insert and can reach a 300°C extrusion
temperatuere.
PVA Polyvinyl acetate is the main ingrediant in white glue, wood glue and
the common school glue stick.
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GLOSSARY
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RAMBo [R]epRap [A)]duino-[M]ega compatible [M]other [Bo]ard. Designed
by Joynnyr of UltiMachine.
Resolution In general terms, the resolution you print at can be determined
by the layer height you use. The LulzBot Mini can print at a layer heights
of 0.05mm to 0.50mm with the standard tool head.
Slic3r Slic3r is a cross-platform 3D model slicing engine used to process
a 3 dimensional model into the GCODE (tool path) needed to physically
generate the print.
Spool Plastic filament coiled and stored on a plastic reel. 3mm filament is
referred over 1.75mm filament due to improved feeding and better mounting
options.
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Thermistor A special type of resistor that changes resistance based on
temperature. It is used to measure temperature on the nozzle and the
heated bed.
Threaded extension Used to separate the heater block and nozzle from
the PEEK insulator. The plastic filament passes through the threaded
extension into the melting chamber.
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Notes
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Use the following pages to record notes and any personal preferences or
tweaks you make to your LulzBot 3D printer for future reference.
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NOTES
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87
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Colophon
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Created with 100% Free/Libre Software
GNU/Linux
LATEX Memoir
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,!7IA9I9-dhiegi!
LULZBOT.COM/FILAMENT
MINI
User Manual
Aleph Objects, Inc.
LulzBot® 3D printers are compatible with many different 3D printing
filaments; not only can you 3D print with ABS and PLA, but also with
metallic, stone-like, wooden, nylon, and even flexible materials. 3D
print with confidence knowing that each filament option has been
tested and integrated into Cura LulzBot Edition, the recommended
software for your LulzBot 3D printer.
LulzBot® Mini User Manual
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