24V Server Power Supply Case

thingiverse

Overview ======= This is a case to build a pretty 24V power supply out of cheap 12V server power supplys. It has a build in power meter (this is absolutly not neccessary and useless, but it's cool :D ) and is designed for 4 XT60 female connectors. Prerequisite ========= Both power supply need two pads bridged with a resistor to start when you plug AC power in. Also the high side power supply needs to be modded to isolate the AC ground from the DC ground (otherwise you will get a short circuit over the AC ground). I used the guide by Philipp Seidel to do this (german) : https://blog.seidel-philipp.de/hp-dps-1200fb-netzteil-umbauen-fuer-ein-lipo-ladegeraet/ WARNING: This mod is dangerous as you can touch parts with AC voltage if you don't know what your doing! Part List ====== (some link are german stores) 2x Server PSU (known working types are the HP DPS-1200FB and similar types (also availabe in 750W and 460W - they work all the same just different output power). You can get the 750W version under 10€ at eBay. 1x "Kaltgerätestecker" Y-Cable (don't know the english name of this :D ) https://www.amazon.de/gp/product/B071X19V98/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 Otherwise you can use any two cables, but I wanted a single wall plug. 1x 150A power meter https://www.banggood.com/G_T_Power-150A-High-Precision-Battery-Walt-Meter-And-Power-Analyzer-p-1005954.html?p=A418101362674201503X 4x XT60H Amass female plug (you need these rounded types, not the one with edges) https://www.banggood.com/Amass-XT60H-Plug-Connector-Black-With-Sheath-Housing-Male-Female-1-Pair-p-1181883.html?p=A418101362674201503X Assembly ======== The 3D printed parts should be a tight fit, so just press the power supplys in. The screw holes are design for regular M3 screws without additional inserts.