this is great. For some strange reason I was NOT able to tune PID at all, no matter how many iterations I tried. It’d always end up with a huge delta. (I’d set it to 215 and it’d jump from 213 to 218, some times 220! then back to 212, etc)
Tried MPC out of curiosity, and now is rock solid (± 1°C). No hardware changes at all. This is on Marlin 2.1.1. The hotend is a Volcano with a 70W cartridge. The rest is a simple Tevo Tornado without any mods in the extruder area.
Disclaimer: I still need to test it properly. This is just after one hour of playing with MPC. But I’m pretty happy with it so far. Even if it’s not perfect in the long run, it’s much better than my previous PID calibration.