Fuse burned
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- Replace PSU, Control Board, Bed Heater.
- Do not modify the PSU.
- Redo wiring safely.
- Add strain relief.
- Do not modify the PSU.
You really got saved by that fuse but just so.
<>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>
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@oliof ok thank you
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@sgk DO NOT POWER ON THIS PSU, BOARD, BED HEATER AGAIN.
You are putting your life at risk.
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can you advise me for power supply and bed please
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no, I'm telling you find someone close to you with th appropriate skill set. I can't give you advice over the internet and check that you follow it.
I'm not giving you further advice on this matter besides what I already did. Keep that machine disconnected and powered down, replace the obviously broken parts, and get help doing so at your place.
<>RatRig V-Minion Fly Super5Pro RRF<> V-Core 3.1 IDEX k*****r <> RatRig V-Minion SKR 2 Marlin<>
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@oliof ok thank you
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@sgk from the photo I see that the board is a clone Duet, not a genuine one. The fact that the bed fuse melted before burning out makes me suspect that it was made using 1oz copper top and bottom, instead of the 2oz (double thickness) copper that genuine Duets use in order to handle high bed heater currents.
From the photo of the back of the board, it looks to me that there is a metal washer shorting against the end pin of the Z motor connector. That's probably why the Z motor connector is burned. We supply nylon washers with genuine Duets to avoid this happening.
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There's a moral to this unfortunate/fortunate story, but I can't quite put my finger on it..
