This is on beta4.1
Warning: Auto tune of heater 2 failed due to bad curve fit (R=0.030, C=0.001:0.000, D=2.3)
I think the problem may be a combination of a very low power heater(250w), and the situation that the heated bed gets the chamber close to the target temperature already, around 50C and I then use the the chamber heater to reach a stable 60C.
I've tried many combinations when tuning, with hotend and bed heater off, with hotend and bed heater on, and setting the ambient temperature. Each tuning takes 5h+ before it fails.
Any idea why my old heater parameters is giving me an error now?
M307 H2 B1 A29.9 C1151.3 D55 Error: M307: bad model parameters
is there manual parameters that might work with my setup in 3.2?
Help is appreciated.