Some of the many sites offering printable downloads
From Annapolis Makerspace Wiki
- Thingiverse
- Thangs
- Sketchfab
- [www.tinkercad.com/things Tinkercad]
- [www.shapeways.com Shapeways]
- [www.treatstock.com/3d-printable-models Treatstock]
- Instructbales
- All3dp
- NASA models
