Preparing for 3D printing in Rhino (McNeel Wiki page)
Lynda.com tutorials on preparing Rhino designs for 3D printing:
- Preparing a model for prototyping
 - Shelling your model automatically
 - Shelling your model manually
 - Exporting for 3D printing
 - * Note: logon to Lynda with your Bucknell account by following this link *
 
Simplify3D troubleshooting guide
Preform software download and user info
Make Magazine’s guide to finishing 3d prints