Mini Lab Bench Power Supply (DPS3003) Powered by Einhell Batteries or DC Source

prusaprinters

<p>This is my mini lab bench power supply with a DPS3003 (or compatible DPSs) as main component.</p><p>It features two modes: powered by battery or powerd by an external dc-source. This way it is very flexible to use.</p><p>You'll need:</p><ul><li>3 position switch <a href="https://www.banggood.com/Forward-Reverse-Switch-3-Positions-6-Pin-Switch-p-1167146.html?cur_warehouse=CN">https://www.banggood.com/Forward-Reverse-Switch-3-Positions-6-Pin-Switch-p-1167146.html?cur\_warehouse=CN</a></li><li>DC power jack <a href="https://www.banggood.com/1Pc-DC-Power-Jack-Socket-Power-Outlet-Power-Socket-Female-Panel-Mount-Connector-p-1177643.html?cur_warehouse=CN">https://www.banggood.com/1Pc-DC-Power-Jack-Socket-Power-Outlet-Power-Socket-Female-Panel-Mount-Connector-p-1177643.html?cur\_warehouse=CN</a></li><li>Banana jacks <a href="https://www.banggood.com/2Pcs-4mm-Nickel-Plated-Binding-Post-Banana-Jack-Socket-Plug-p-953213.html?cur_warehouse=CN">https://www.banggood.com/2Pcs-4mm-Nickel-Plated-Binding-Post-Banana-Jack-Socket-Plug-p-953213.html?cur\_warehouse=CN</a></li><li>Spade connectors <a href="https://www.aliexpress.com/item/32800318960.html">https://www.aliexpress.com/item/32800318960.html</a></li><li>DPS3003 or similar <a href="https://www.aliexpress.com/item/32685187020.html">https://www.aliexpress.com/item/32685187020.html</a></li><li>Cables</li><li>4 M3 screws</li></ul><p>(optional) Banana-alligator cable <a href="https://www.banggood.com/P1041B-6-in-1-1M-4mm-Banana-to-Banana-Plug-Test-Lead-kits-Alligator-Clip-Clamp-p-1254539.html?cur_warehouse=CN">https://www.banggood.com/P1041B-6-in-1-1M-4mm-Banana-to-Banana-Plug-Test-Lead-kits-Alligator-Clip-Clamp-p-1254539.html?cur\_warehouse=CN</a> Connections should be self explanatory.</p><p>Fusion360 project file is attached.</p><p>Reference for how to build the battery connection <a href="https://www.thingiverse.com/thing:2976266">https://www.thingiverse.com/thing:2976266</a></p><p>(Imported from https://www.thingiverse.com/thing:3722109)</p>