Topics created by BlitzReg

Please share your full config? Can you post a video of the choppy motion?

@blitzreg
Can you send a picture of the graph?
I had a similar problem with 3 heaters with the same batch number.
R.G.

@blitzreg said in PID problems:

@phaedrux Why is it saying Heater 0 when the fault happens on heater 1 the extruder? Not sure what is happening here!

I think that is a bug in the displayed heater. Please update to 3.4.1 RC1

https://github.com/Duet3D/RepRapFirmware/releases/tag/3.4.1rc1

What did your tuned values result in?

If the part cooling fan doesn't have a big impact on the heater, you can tune the hotend as a normal heater with M303 H1 S240 and see if it behaves better.

@blitzreg please check your M574 endstop configuration in config.g carefully. In particular, if your endstops are active low (e.g. normally-open switches) then the way you specify inverted endstop operation in the M574 commands has changed between RRF 2.x and 3.x.

With the SD card removed there is voltage on the bed heater output as soon as VIN is applied?

When and where did you purchase the Duet?