Lista stron z gotowymi modelami:
http://www.yeggi.com/
https://www.thingiverse.com/
https://cults3d.com/en
https://pinshape.com/
http://www.3dshook.com/
https://grabcad.com/
https://3dwarehouse.sketchup.com/?hl=en
https://www.stlfinder.com/
http://3dmdb.com/
https://www.3dspectratech.com/
https://www.luxxlabs.com/