ATX Power Supply

thingiverse

With this fast design and print, I was able to repurpose an old ATX Power unit as a Desktop power supply, which you can see in the photos wasn't ideal with a 0.25 layer choice. No big trick here. I simply cut off the connectors and soldered the wires to 4mm single connectors. Color coding is next. Green connects to Black with a switch, and the Power supply starts up. Black is Ground. Orange leads to 3.3V, so I connected my LED using a 220Ohm resistor. Red links to 5V, where I hooked up my LED using a 270Ohm resistor. Yellow goes to 12V, and I connected my LED with a 680Ohm resistor. Blue is -12V; since it's negative voltage, I had to connect the LED the opposite way around, with the Katode going to Blue and Anode to Black. That's all there is to it – quick and easy power for future projects.