3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Elegoo Neptune 3 no longer turns on (self.3dprinting)

submitted 9 months ago* (last edited 9 months ago) by papalonian to c/3dprinting

32 comments fedilink hide all child comments

Hi all. Yesterday, my printer stopped responding to commands from the touch screen, so I shut the printer off and turned it back on. Now, the printer and screen turn on (power fan spins and screen backlight comes on), but the screen does not display anything, and the printer cannot be reached via USB. Multiple power outlets and cables have been tried, and all cables inside the main chassis are securely connected except for the Z- cable (which has been replaced by a BLTouch). There is a single red LED on the motherboard that lights up when the machine is powered on. Does anyone have any ideas how I can try to diagnose this? I've sent an email to elegoo, but I've heard it can take weeks to get a response, and I'm trying to get things ready for a DnD campaign starting this weekend.. thanks for any tips.

Edit: for anyone finding this post looking for help, you're SOL. Elegoo responded to me, and after sending them a couple pictures, they've determined my motherboard to be dead, and are not willing to provide a free replacement since I'm just outside of warranty. Now I'm torn between getting a new motherboard (waiting on a quote from them) or just saving for a better printer.

Edit 2: after some very light complaining, Elegoo is making right and sending me a new motherboard free of charge.

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[–] papalonian 1 points 5 months ago

Yes, I don't know what (if any) firmware ships on BTT's board, but their GitHub page has both Marlin and Klipper builds for all of their boards.

If you don't know what Klipper is or how it works, now is a great time to learn. With the mods you're mentioning it sounds like you're very into printing as a hobby, Klipper is an eventuality. Within the first 15 minutes of having it set up you'll be wondering why you ever used the stock firmware.