LED bar for 3D printer U30 Pro

thingiverse

My goal was to mount a LED bar on the front of my Alfawise U30 Pro printer with invisible wiring. The wiring runs through the right arm of the LED bar, so I didn't print supports for it. The thing is made in two parts, which I glued together with epoxy. My printer has 20mm profile sides and a spacing between the two arms of 330mm. You can see photos here: To power my 12v LED, I used a LM2596 converter to step down from 24v. You need to turn the screw counterclockwise to decrease the voltage - in my case, it was set by default to 18v. Use a multimeter to set the right voltage. I soldered the pins on the converter and connected them with Dupont pin connectors. To attach the converter to the printer frame, I used an M3 nylon spacer with a nut to secure the spacer to the PCB and an M3 screw through a ventilation opening. There are two possible upgrades: - An additional arm to guide the filament on the left side - there's a fixing slot for it in the LED bar. https://www.thingiverse.com/thing:4292105 - Slot covers to hide the wiring completely by slipping them into the metal supports. https://www.thingiverse.com/thing:4291987 I'm using this LED: https://www.amazon.com/dp/B07DZRLM3J?th=1 This converter: https://www.amazon.com/dp/B07793ZH9K?th=1 And these Dupont connectors: https://www.amazon.com/dp/B078K9DT69?th=1