Rackstack

Rackstack is a 3d-printable modular rack mount system for smaller homelabs. It got some traction on reddit a while back. (Geez it's been 3 years!) The GitHub repo also got pretty popular. It was at 1.5k stars last item I checked.

Here's a 3d rendering I made in Blender a while back for possible configurations:

And yes! It will totally look like this when you actually print it!

All the geometry was hand-rolled with OpenSCAD, which I continue to have a love-hate relationship with. If you know you know. ¯\_(ツ)_/¯