Over Temperature Shutdown Cannot Extrude
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Help! My duet just flashed an over temperature shutdown on drivers 3 message. I restarted it and now it won't extrude. When I hit "extrude" in DWC the motor makes a squeaking noise but then nothing happens. Did I break it? I was printing earlier today and the only thing I've changed is to set up mesh compensation.
Update: I left it alone for a while and came back to discover that I can't move my Y axis either. When I try to home Y it makes a grinding noise and then stops.
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My guess is that either there is a short in your extruder motor wiring, or the extruder motor driver has failed. Is there any sign of damage to the either the E0 or the Y stepper driver?
If two drivers have failed at the same time, that could be caused by excessive input voltage. What is the voltage coming out of your power supply?
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What would damage to the driver look like? Input voltage is only 12v.
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When drivers fail there is often a small hole or burn mark on them, some way from the centre of the chip.
If the drivers look OK, check the crimp connections on the stepper motor cables.
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There seems to be a black spot on my E0 driver:
But I don’t see any damage on my Y driver.
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I think your Duet has at least one faulty driver. Please ask your supplier to repair or replace the Duet.
