Issue after autotune 303. Temp drops big time when fans kick in.
Hello, Machine is Rostock Max V2 (Rambo board) HE280 Hot end upgrade. Used to work fine ish (hotend consistently running 5 degrees lower than set). I ran it like this for 2 years.
Ran autotune M303 P0 S235 x0. Didn't seem correct. Than I ran M303 P0 S90 x0 and it seemed perfect.
210 Degrees maintains great within a degree or 2 ... UNTIL the the fans kick in. Then the temp keeps dropping to less than 190 until hardware reports a fault and the print is stopped. It appears that heaters are full on and trying to keep up. (led light solid on RAMBO)
PID Incorrect? Heaters just not keeping up? Fans blowing too much air on nozzle? Should I install a Silicone sleeve on the hot-end?
Any help is much appreciated!