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3D Printing

The Marriott Library 3D printers are available for student, staff, and faculty use per the policy found here.


Lulzbot TAZ 6/Workhorse (12 printers):
Build volume / Printable Area: 280 x 280 x 250 mm (11.02 x 11.02 x 9.8 in)
Filament: 3mm (2.85mm) PLA or PLA+

Gigabot 3+ (1 printer):
Build volume / Printable Area: 590 x 600 x 600 mm (23.2 x 23.6 x 23.6 in)
Filament: 3mm (2.85mm) PLA or PLA+

Users may print with their own 3mm/2.85mm PLA filament, or reimburse the Library for materials used in a print.

Ready to get started? We're here to help! Schedule a consultation or ask a question on our email list:

Starting a 3D Print

Log into the 3D printing Mac computer using your uNID and CIS password.
1. Launch Slic3r from the dock.
2. Import a design file in .STL format by clicking "Add..." or drag your model in. Slic3r imports in millimeters, so you may need to scale your model accordingly. Make sure to rotate, scale, and position your design so that the "flat" side is down.
Optional: If the model has no obvious "flat" side, generating support material may help. Select "Everywhere" from the Support dropdown.
Optional: You may also want to increase the infill percentage to create a stronger part.
3. Click "Export G-code..." to save your file.
4. Select the SD card from the printer as the location to save your file and click save.
5. Insert SD card with pins facing you.
6. Click in button to open main menu.
7. Scroll down to "Print from SD"
8. Scroll down to, and select your part by clicking in the button.
Observe the first layer of the print to ensure that the first layer is properly sticking to the print surface.
If using Library filament (labeled with a "Marriott Library" tag on the spool), weigh your completed print and fill out a 3D printing receipt. You will pay for it at the Knowledge Commons desk.

Frequently Asked Questions

How do I load filament? Set a temperature of ~200 C using the LCD control panel on the printer. Loosen the idler screws on the extruder toolhead, open the filament clamp assembly, remove old filament, insert new filament, close the filament clamp assembly, and tighten the idler screws. Watch a video demonstration here:
The LCD on the printer says "Err: Reslice for PLA" What does it mean? This error occurs when the wrong material is selected in Cura. Step 5 in the instructions above details the correct material selection. Note: this error does not clear automatically. Turn the printer off, then on again, to make the error go away.
Why can't I print with ABS, Ninjaflex, or other high-temp plastics?
Because our printers are not externally ventilated, we only print with low-UFP emitting materials.
Where can I find 3D models? Thingiverse, NIH 3D Print Exchange, ShapeWays, YouMagine, and Yeggi all have 3D models available for download, though some of them do have associated costs.
Why can't I print with ABS or flexible filaments? ABS and other high-temp filaments produce toxic fumes which cannot be vented safely.
What filament should I buy? Recommended Filament: eSUN 3mm PLA PRO (PLA+) 3D Printer Filament 1KG Spool. Other colors are available, just be sure the type (PLA+) and diameter (3mm/2.85mm) are correct.


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Phone: 801-585-5921

 Last Modified 7/3/19