nick9one1 last edited by
Is there a way to set an offset in M308?
I have 100K ohm NTC 3950 in both the hot end and bed, but the both read a coupe of degrees out.
; Heaters M308 S0 P"bedtemp" Y"thermistor"T100000 B3950 C0 R4700 A"Bed Temp" ; M308 S1 P"e0temp" Y"thermistor" T100000 B3950 C0 R4700 A"Hotend Temp" ;
Veti last edited by
beta 3950 thermistors are not good for accuracy
the best way to adjust them is to measure the resistance at 25, 160, 220 using a known good temperature measuring device. then use those values to calculate the B and C for your thermistor.
or you could replace them for example with semitec 104 thermistors.
I personally use pt1000.