Champaign-Urbana Community Fab Lab

Last updated 07.29.2014

Policy

The CU Community Fab Lab provides 3D printers as a service during open hours. Lab rental is available as an option for people who need consultants to make 3D designs for them.

If a print fails due to machine problems (filament tangle, power loss, extruder clog, etc...) we will reprint it for you free of charge. If a print fails due to inproper support, structural design or poor choice of material we will print it again for the regular charge.

Printer Capacities

UP! Mini 3D Printers (3)

• $2 base charge for use
• 4.5x4.5x4.5 inches (120x120x120 mm)
• Can use ABS and HIPS

TAZ 3D printers (2)

• $5 base charge for use for prints under 36 hours
• $8 base charge for prints over 36 hours, not eligible for free reprints due to failures
• 12x11x10 inches (300x275x250 mm)
• Can use all material types

Materials

Acrylonitrile Butadiene Styrene (ABS) - $0.10 per gram - strong/flexible, warps a lot with heavy infill or for large prints

High Impact Polystyrene (HIPS) - $0.10 per gram - strong/brittle, no warping

Polylactic Acid (PLA) - $0.10 per gram - weak/brittle, low-warping, environmentally friendly, low temperature tolerance, translucent types available

Ninjaflex (Thermoplastic Elastomer TPE) - $0.25 per gram - soft and flexible, no support structure possible

Nylon - $0.25 per gram - flexible, low-warping on garolite sheet, can be dyed to various colors or spectrums

T-glase - $0.25 per gram - semi-strong/semi-brittle, low-warping, environmentally friendly, FDA approved for food containers, , translucent

PolyMax - $0.25 per gram - strong/flexible, low-warping, environmentally friendly

Resources

http://devel.lulzbot.com/filament/Filament_Testing/polymakr_testing_notes.pdf

http://www.lulzbot.com/sites/all/themes/lulzbot/images//LulzBot_3D_Printing_Filament_Guide.pdf

https://docs.google.com/document/d/1m8-aZDcGMtZxNn4-fTotntcJsv9VbOAHotueydUMJG0/edit#