Power Supply Build for Router CNC

[EddyCurrent]

I tried a bleed resistor and it's surprising how much heat 1watt gives off but in reality it's not required because the stepper drives drain the capacitor quite quickly.




Traditionally it's mounted on an aluminium plate about 3mm thick which allows it to be bent quite easily and obviously with enough space to fit everything else on. The vertical part protects the transformer from mechanical knocks which could easily damage it. The capacitor I used was mounted vertically as it had a one bolt fixing at the bottom, the rectifier is bolted to the aluminium with a little heatsink compound added, terminals and fuses are whatever you decide but I found a 4 way one of these to be useful and compact, it's 12volt rated but I decided it would be fine for my 60v supply, you need to decide yourself. 2/4/6/8/10/12 WAY + HEAVY DUTY AUTO FUSE BOX/HOLDER 12V VOLT STANDARD BLADE | eBay