Hi there
I changed hotends with prusa mk2 and wanted to do M303 to pid tune it...
Since movement of temp is preety unevenly (see jpg), i tried multiple cycles of pid autotune to get best results out of it:
M303 C30 S280
After pid autotune is finished (but looks like only 5 cycles are done) - i however get one of two errors:
Error:Line Number is not Last Line Number+1, Last Line:108
Resent: 109
(numbers may wary)
or
Error: checksum mismatch, Last Line:42
Resend:43
(numbers may wary)
I tried with nopheads latest firmware, wo/ changes (besides hotend related: TEMP_SENSOR_0 1; HEATER_?_MAXTEMP 325
...
And with eeprom enabled on that.
Same thing.
Ideas?
pic1
pic2