Heated bed not heating at expected rate
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Sup guys,
I might just need a little advice, I have purchased Duet 2 WiFi and I am so excited about the board.
Basically, I have found everything I needed in the documentation and the sensorless homing on the CoreXY is flawless.However, I am using a heated bed 320x320 powered by 24V with an external MOSFET that all works fine, when I click to heat bed it starts raising the temp, however, the temp raise kinda slow from the start so and there is like some kind of timer like the temperature failsafe which checks If the temperature raises at the expected rate I think it's like by default 1,4C/5s? or something like that is there a place where I can edit this setting to check like every 15s if the temperature raised at an expected rate so it doesn't enter the fault state because it heats up slowly
Thank you in advance!
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@thunder-0 you need to PID tune your heated bed (and hotend too!) using the M303 heater tuning. https://duet3d.dozuki.com/Wiki/Tuning_the_heater_temperature_control
FYI, the tuning algorithm changed in RRF3.2 a little, so of you're on the newer version it might take a while to tune (like a couple of hours for a big bed) as it does several cycles to better capture the heater behaviour
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@engikeneer Thank you a lot !
I guess it's solved by now since I didn't know that it will get solved basically by making "PID autotune" since as I was used to Marlin there it is a bit different.
Thank you a lot once more and take care!
