PSU plug for UM2/3

youmagine

I MUST WARN YOU THAT THIS PROJECT REQUIRES WORKING WITH HIGH AMPERAGE ELECTRICITY AND THE RISK OF FIRE IS EXTREMELY HIGH! DO NOT ATTEMPT UNLESS YOU ABSOLUTELY KNOW WHAT YOU ARE DOING! I HAVE A MODIFIED UM2 PRINTER, EQUIPPED WITH AN OLSSON EXTRUDER, A MEDUZA ROBER FEEDER, AND A 1.75MM CONVERSION, WHICH HAS BEEN WORKING FLAWLESSLY FOR ABOUT 4 YEARS. A MONTH OR SO AGO, MY POWER SUPPLY SUDDENLY STOPPED FUNCTIONING, SHOWING ZERO VOLTS AND NO BLUE LIGHT. MIRACULOUSLY, THE PRINTER CONTINUED TO PRINT WHEN I PLUGGED IN MY UM3 PSU. I NEEDED TO KEEP PRINTING AND FORTUNATELY HAD A HIGH AMP 24V POWER SUPPLY SET ASIDE FOR A CNC PROJECT. AFTER DISASSEMBLING THE BRICK AND DETERMINING THAT IT COULDN'T BE REPAIRED, I REMOVED THE OUTPUT WIRES AND CABLE, SOLDERED LEADS TO THE END, AND CONNECTED THEM TO MY POWER SUPPLY. MAINLY BECAUSE THE REPLACEMENT WAS EXPENSIVE AND THE NEW SUPPLY WAS WORKING FLAWLESSLY, I DECIDED NOT TO ORDER A NEW ONE. THE ONLY DRAWBACKS WERE THAT THE NEW POWER SUPPLY WASN'T VERY PORTABLE AND WAS EXTREMELY LOUD DUE TO ITS FAN. DURING THIS TIME, @GR5 TOLD ME THAT THESE SUPPLIES OFTEN RETURN TO LIFE WHEN YOU LET THEM SIT OVER NIGHT. SURE ENOUGH, I PLUGGED THE BRICK BACK IN AND IT STARTED WORKING AGAIN. I DIDN'T TRUST IT ENOUGH TO REVERSE MY "BORROWING" OF THE CORD SO I CAME UP WITH A DIFFERENT SOLUTION: INSTALLING A FEMALE BARREL JACK IN BOTH THE BRICK AND THE NEW POWER SUPPLY. BY PUTTING A PLUG ON THE CORD, I COULD SWAP BACK AND FORTH AS I SEE FIT. I DESIGNED THE ADAPTER IN AUTODESK FUSION360 (IT WAS PRETTY SIMPLE)