Temporarily disable heater thermal safeguards?
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I don't know how I'm supposed to change nozzles or clear clogs. If I touch a metal wrench to the heaterblock, or take the hotend out and clamp it in a vice, the thermal protection trips. How do I temporarily turn off all heater thermal runaway stuff?
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Shouldn't be doing any of that stuff with it powered anyway. Heat up, turn off the heater, do the thing, heat back up if necessary, etc.
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As Tim says it's a bad idea to do that while powered as you could induce a short between the heater and the thermistor/PT100 that can damage the board.
That said you can change the time a heater will tolerate a fault by using M570:
https://duet3d.com/wiki/G-code#M570:_Configure_heater_fault_detection
