AC and DC Power Box

thingiverse

I wanted a way to supply power to my 220VAC heat bed and also deliver DC +5, +12, and GND to my RAMPS1.4 and limit switches. I figured out a solution and now I'm excited to share it with you. Check out this short video so you can see exactly how it works and get an idea of safe usage practices. The plugs for AC and DC voltage will be color-coded/talked, making sure they fit perfectly at the same spot and avoiding any issues that could arise from putting a 220VAC plug into the wrong socket. I'm using a computer power supply to generate +12DC, +5VDC, and GND. To differentiate between AC and DC plugs, I color-coded them as follows: for DC, top pin is GND, left pin is +5VDC, and right pin is +12VDC. The plug itself will be marked with red tape along with a downwards-facing arrow on the DC socket side. Now let's take a closer look at the AC end: since the power-supply won't ever be plugged into a non-live side (for the sake of avoiding damage), top and right pins are left disconnected from any connection points as indicated below. If we go to check if all current stops on printer’s end by looking into above picture for safe touch without Power Supply connected ,you will notice that both live ends are actually open-ended as demonstrated by image given,meaning the pins at bottom are fully empty with no electrical connection at all ! And don’t even think about trying to insert it incorrectly because then you can never reach those unreachabe female terminals either