I was recently revising the code for the Coax Relay Driver to use a PIC16F1827 chip, and thought a good improvement would be a board that held the prototype electronics and the pulse latching relay together as an assembly.
Above is the design from Fusion360 to be cut from 3mm clear PVC sheet on the CNC router.
Above is the cut piece with four M3 heat melt threaded inserts for the electronics.
Above is the completed prototype assembly. The white cable to the left is an ICSP connection for programming / in circuit debugging of the code.
Whilst I used a CNC router do cut the board out, it could easily be done with a jigsaw and drill.