Marlin firmware fork for MakerFarm i3v w/ auto bed level & Roxy's enhancements

[AbuMaia]

Just had the bed throw an error again.

Recv: Error:Heating failed, system stopped! Heater_ID: bed
Changing monitoring state from 'Printing' to 'Error: Heating failed, system stopped! Heater_ID: bed
'
Recv: Error:Printer halted. kill() called!

That was all the error message OctoPrint gave me. Doesn't say if it was a thermal runaway or not.

[uncle_bob]

Just had the bed throw an error again.

Recv: Error:Heating failed, system stopped! Heater_ID: bed
Changing monitoring state from 'Printing' to 'Error: Heating failed, system stopped! Heater_ID: bed
'
Recv: Error:Printer halted. kill() called!

That was all the error message OctoPrint gave me. Doesn't say if it was a thermal runaway or not.

Hi

That looks like thermal runaway to me. Simply put, it's calling for heat for to long a period of time and deciding the thermistor is not responding. Simple answer is to stretch out the timeout, if you do it in firmware. Putting a solid state relay on my printer was a < $15 decision. With PWM the problem has never occurred. To fix it without new hardware, bumping up your power supply voltage might do the trick. Obviously, each of these approaches has its own drawbacks.

Bob