LulzBot Mini User Manual

3.5. HOBBED BOLT
3.5 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.
3.6 Software
LulzBot will release a new stable version of the software, typically every
quarter. It is best to update the software every time a new version is
released. The software is as important as the hardware in printing quality
parts. Each quarterly software update can bring advances in print quality.
The files are available at http://download.lulzbot.com/Mini/ . You can
also find updated software versions at LulzBot.com/downloads.
3.7 Belts
Over long periods or after extensive relocating of the printer you may need
to re-tighten the belts on the Mini 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 unneeded stress on the printer.
3.8 Hot End
The hot end should be kept clean of extruded plastic by removing melted
plastic strands with tweezers. If melted ABS plastic builds up on the hot
end nozzle you can clean it with a paper towel soaked with acetone. Make
sure the hot end is completely cool before attempting to clean the nozzle
with acetone.
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LulzBot Mini Specifications

General

Tweezers	Yes
Certification	CE, FCC, WEEE
Product color	Black, Green
Viewing window	No
Maximum print platform temperature	120 °C
Package weight	11330 g
AC input voltage	100/240 V
Power consumption (typical)	150 W
Print technology	-
Printing material	ABS, HIPS, Nylon, PVA, Polycarbonate (PC), Polylactic acid (PLA)
Layer thickness (max)	0.5 mm
Layer thickness (min)	0.05 mm
Maximum build size (WxDxH)	152 x 152 x 158 mm
Filament thickness supported	3 mm
Maximum vertical build speed	275 mm/sec
Printing compartment volume	3.65 L

Weight and Dimensions

Depth	435 mm
Width	340 mm
Height	385 mm
Weight	8550 g