Demo video https://youtube.com/shorts/_D_-_w1XRVI
I printed everything with a .2 layer height on a Prusa Mk3s, and have included the prusaslicer projects I used.
I used support on build plate for the core although it may be largely unnecessary outside of the bottom socket. Any way you do it that socket will probably need a little cleanout if you're trying not to bend your switch pins.
I had better luck printing the keycaps with the number facing up plus a brim and support only for the stem. When I printed them with the number face down I had some issues with getting perfect adhesion on the numbers themselves.
This is the most complex 3D modeling project I've ever shared so any feedback would be greatly appreciated, happy printing!
Assembly video
The author hasn't provided the model origin yet.