At this point, I’m just compiling 3D design and printing resources to read and share with others who are interested. The list is bound to grow!

Blog with news and resources for 3D printing:
https://all3dp.com

Sites offering free STL files:
https://all3dp.com/best-sites-free-stl-files-3d-printing/

Software (Thanks, Mark!)

3D Design & Printing Resources