Due to the lack off industrial solutions to place electronic boards in places like electrical cabinets, the below standoff plates are created.
In this pictures, the plates are made of 2mm stainless steel. It was laser cut, so it care a minimal work to be finish. Only needs to be bended on the alignment marks and open thread on the correspondent holes.
For the PCB fixation, the holes are 2.75mm in diameter, so a 6/32 tap should be used to plate a motherboard standoff spacer.
The design provides a way plates can be easily fixed by M4 screws.
Support plate to use with Mesa 7i77 board
with mesa 7i77 board placed:
With spacers mounted:
4 back holes makes possible use zip ties to fix Ioni drives