3D Printer - LulzBot Mini


3D Printer - LulzBot Mini
Tool Stats
Type 3D Printer
Make Lulzbot
Test Map
Needs Induction?
Status Ok
Owned by So Make It

IMPORTANT - Please read before using the minis

Most of the minis have some form of issue following the extreme extended use as a face shield factory for Cov-19 PPE production
All the rigid filiment minis are currently (as of 25/08/2020) fitted with a 1.0mm nozzle. When slicing this needs to be 
accounted for as the factory default is 0.5mm (in cura this is changed in the machine settings).

Mini 4 is not traversing in the positive Y direction. The stepper has been checked and manual G1 codes have been issued. 
It is unlikely to be a hardware issue as when the printer homes the Y-axis, it performs a small (about 10mm) positive backoff 
movement after hitting the Y-min endstop.

Other minis are lacking their PEI sheet and will need glue stick or hairspray to allow filament to adhere to the bed 
(currently out of stock in the space).

Flexy-struder mini is fully operational but needs glue stick
These issues are being worked on as time permits. The intention is to have some fitted with fine (0.2 or 0.3mm) nozzles and/or 
1.75mm filament mods to allow a wider range of print capabilities however the focus now is getting as many printers back to 
operational normal as quickly as possible


So Make It has five Lulzbot Minis donated variously by Lulzbot and James. One is currently non-function and awaiting repair or use as spares for the others. One is setup with a Flexystruder for prinding flexible filaments like Ninjaflex and TPU. The rest are best used to print ABS and PLA.

The build surfaces are a mixture of bare glass, and PEI. Please be aware of the differences surrounding printing different materials on different surfaces. {TODO}

How to Use

How To Print

The Minis don't have an on board card reader/file system so must be driven externally via USB from an external computer

Follow the guide Printing with Cura or Printing with Octoprint (coming soon)

If you need to stop The Printer

If printing directly from either Cura or Octoprint, press the Cancel button on the print control panel.

In the event this has no effect or you are unsure, just turn the Power Supply off and look for someone who can help. Don't leave the hot nozzle touching the bed if you can avoid it - turning it back on should cause the print head to return to its home position.


There is a monthly maintenance check-list printed in the space, source is here: https://github.com/somakeit/operations/raw/master/Printer%20Service%20Schedules/LulzBot%20Mini%20Service%20Schedule.ods

if the print surface is changed (i.e. PEI sheet is swapped for buildtak or removed entirely for bare glass) then the Z-axis offset will need to be recalibrated: https://ohai.lulzbot.com/project/z-axis-offset-adjustment-LulzBot-Mini/

Machine specifications


Print Surface: Heated Borosilicate glass bed optionally covered with PEI sheet

Print Area: 152mm x 152mm x 158mm (6in x 6in x 6.2in)

Print Volume: 3,650 cm3 (223 in3) of usable space

Top Print Speed: 275mm/sec (10.8in/sec) at 0.18 layer height

Print Tolerance: 0.1mm (0.0039in) in X and Y axes. Z axis is dependent on layer thickness

Layer Thickness: From 0.05mm to 0.50mm (0.002in - 0.020in)

Supported Materials: ABS, PLA, HIPS..

Usable Filament Sizes: standard 3mm (0.1in)

Physical Dimensions

Overall Dimensions: 435mm x 340mm x 385mm (17.1in x 13.4in x 15.2in)

Weight: 8.55kg (18.85lbs)


Power Requirements: 100 - 240 VAC with auto-switching power supply

Temperature: Maximum operating temperature (Extruder), 300C

Temperature: Maximum operating temperature (Heated Bed), 120C

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