Any time I have a nice piece of flat cardboard left over from something now I stash it for exactly this purpose. The best instant prototype sanity check material!Ok, so did a quick lasercut on cardboard of the PCB to make sure it lines up with the psu, pretty good for the 1st try.
Looks great!OK, I think I'm good to order the PCBs, these are as simple as they are gonna get.
If you don't need the voltmeter it can be left out along with the switch
I have a few different ones on order for the voltmeter to see how they fit.
If anyone has any requests or changes they would like to see please let me know.