Where can I find these .stl and other files to cut out chess pieces and other files to cut out 3D objects
There’s an example here:
My son found the files on Thingiverse:
The community has links to plans and sources for projects and generators at: https://wiki.shapeoko.com/index.php/Online_resources#Plans_for_Projects — we’d be glad of more to add.
A new resource is https://cutrocket.com/