Elegoo Neptune 2 Power Supply Cover

prusaprinters

<p><i><strong>Use this at your own risk. You are working with high voltage. If you aren't comfortable or confident with this, don't do it. If done incorrectly, this can start fires.</strong></i></p><p>I didn't like having to splice my power cord with a relay to control printer power so I made this. This is a replacement power supply cover that has mounts for a relay internally and a Raspberry Pi externally. This utilizes all of the included wires to connect to the relay.</p><p>I added a version without relay holes so different relays can be used. Holes can easily be added in Prusa Slicer by adding negative modifiers.</p><p><strong>Printing:</strong></p><p>Below are the settings I used, but this model should print well with coarser settings.</p><p>0.4 mm nozzle</p><p>0.2 mm layer height</p><p>PLA</p><p>No Supports</p><p>&nbsp;</p><p><strong>Extra Hardware:</strong></p><p>Below is the hardware I used, however longer (and potentially shorter) should work.</p><p>6x M3x8 machine screws</p><p>2x M3x10 machine screws</p><p>8 x M3 nuts</p><p>&nbsp;</p><p><strong>Assembly:</strong></p><p>FIRST UNPLUG YOUR PRINTER</p><p>Remove the power supply cover and disconnect everything. Remove the jumpers from the switch. Snip the connectors (from the switch wires) and either tin them or add a crimp cap. Connect the Vin to the NO terminal of your relay and the power supply to the common terminal. Mount the relay, power connector, and raspberry pi. Re-connect the power supply and mount the cover on the power supply. Re-attach to your printer and use your web UI of choice to control your printer power!</p>