You can search for pre-existing models on the Internet to print as they are, or to modify using 3D modeling software.
Creating a Model
You can also design your own object in any 3D modeling software. The Library does not currently provide access to 3D modeling software, but there are many free software programs available.
All files must be submitted as stereolithography (.stl) files.
File Naming Protocol
Please use the following naming scheme when submitting your file: lastname_firstname_modelname.stl (eg: doe_john_mystuff.stl)
Maximum size is 152 x 152 x 279 mm (6 x 6 x 11 in). Layers must be at least 0.1 mm thick (0.020 in).
The standard resolution is .3 mm per layer, with 5% infill. You can specify a different quality level by making a note under "Special Instructions" on the submission form.
If your model includes multiple parts, make each as a separate STL file. You will need to submit each file as a separate request.
The surface of your 3D model must be watertight. This means all faces of the object must construct one or more closed volume entities. Gaps or holes in the model will cause it to print incorrectly.
See Rhino's How do I Make a Solid Model.
Your final model should not contain any 2D elements, as they can cause naked edge problems. Delete any 2D elements that were used to create sweeps, lofts, or other complex shapes.
Check your design for holes, gaps, or other problems before submission. Numerous third party tools can help you fix geometry problems, including:
Shapeways offers a tutorial for fixing and repairing 3D models using these services.
This project has been funded in whole or in part with Federal funds from the National Library of Medicine, National Institutes of Health, under Contract No. HHSN-276-2011-00007-C with the Houston Academy of Medicine-Texas Medical Center Library.