I wanted something stronger for my heavy BeamCase ATX PC. I could have used t-slot nuts, but like the original creator, I wanted to keep the necessary materials to a minimum.
Requires 6 M3x16mm countersunk screws and 6 M3 nuts (both of which you probably already have in your leftover pile from your BeamCase build).
Built in Onshape. I imported the original STL and reconstructed it into a parametric model.
Link: https://cad.onshape.com/documents/b2edad1d055f2b509435b830/w/83b7c2e0d1b8865f67895722/e/cd92c961b8f3d7ec5a429113?renderMode=0&uiState=6712b73453007318d1a9f3f9
The author remixed this model.
Differences from original model:
* 30mm in length versus the original 15mm.
* It uses 6 M3x16mm screws per handle instead of the original 2 per handle.