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

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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have been tried, and all cables inside the main chassis are securely connected except for the Z- cable (which has been replaced by a BLTouch).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

Yeah the new mobo worked for a while, I think it took around 8 or 9 days to ship to US. The tracking site never updated past saying the shipper was waiting for the item (even a week after it was delivered). But I started having some really odd issues with it after a month or two. I'm still not 100% sure what the cause of the issue was or if it was even specifically mobo related (I posted a lot here during that time if you peep my post history), but I ultimately ended up replacing it with an SKR mini E3 mobo, which I'm much more happy with.

Replacing the mobo should just be plug and play, all the cables are labeled, well routed, and are appropriate length, so it's easy to rewire the stock configuration. Just to be safe though I would grab the newest version of the board firmware from their GitHub page and flash it, no telling what version it ships with.