If I set temperature say 220 °C, printer heats up to it and it only varies +/- 0.5 °C under non operating condition. But if I start a print, there's a shift of +/- 15 °C.
I've already auto tuned PID parameters and Whenwhen I run M503
, the printer shows the updated PID values.
What could be the reason?
Electronics details:
- Firmware used: Marlin
- Controller board: Printrboard rev D