This is a rack system that I designed to be used in my home lab. It is intended for use as a 10" half rack, but can be used with full size rack mounted items as well. It comes in 2, 3, or 4u and can be stacked.

For the complete system you will need to print:

2 Tops

2 Bottoms

2 L Rails

2 R Rails

It uses m5 hardware for assembly and attaching trays and panels.