Ok, the fault is on the duet side maybe. I have the same problem now with a heater that have in use 1 year. I see an unnespected raise of 15 degres before the fault. I think that causes the burned spots in the thin point of the e3d cartridges. After the failure the duet becomes too lazy to respond if not reset first, 5 seconds or more to take a gcode command. Cant use the M562 command or reheat the hotend, and the m122 command never be read. Time to erase and reflash to try again
@emax said in Flashforge Creator Pro Heat bed wiring:
Thanks a lot, good thread. However, I am not that advanced yet in electronics, so I would like to check, if I can wire it like shown below? Or do I have to buy the OSH Park board?
It may not matter, however I would swap the two red wires in your diagram, so that Signal goes to Thermistor0 and Gnd goes to VSSA.
I tried with the multimeter the continuity between the end of a USB cable connected to the Duet and several points in the Duet's PCB around the USB connector (R1, R2, ...). I have found continuity between the four cables of the USB connector and the points that I have mentioned. The cables have been tested individually.
I think this discards a bad welding of the USB connector to the PCB.
Regarding the USB pins of the microprocessor and the resistors, I do not know how to measure it. I have taken a picture of the microprocessor pins and I have not seen anything strange, but that does not rule out anything.
Thank you again
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