3D Printer - LulzBot Mini
Info
| 3D Printer - LulzBot Mini | ||
|---|---|---|
| [[Image:{{#arraymap:LulzBot-Mini.jpg}}|295px]] | ||
| Tool Stats | ||
| Type | 3D Printer | |
| Make | Lulzbot | |
| Location | ||
 | ||
| Needs Induction? | ||
| No | ||
| Ownership | ||
| 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
Overview
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.
Maintenance
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
Printing
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)
Electrical
Power Requirements: 100 - 240 VAC with auto-switching power supply
Temperature: Maximum operating temperature (Extruder), 300C
Temperature: Maximum operating temperature (Heated Bed), 120C