2) https://www.tinkercad.com
3) https://www.blockscad3d.com/community
4) https://www.thingiverse.com/
5) https://www.myminifactory.com/ (TODELLA HYVÄ)
6) https://www.autodesk.com/products/fusion-360/overview
7) https://www.sketchup.com/
8) https://printcloud.dremel.com/myfiles