Same thermistor and setting but reads different temp
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Hi,
I have 2 separate identical hotend setup. Heater config below. I was able to print with the 1st hotend so I know that number is correct. but the 2nd hotend puzzle me because it give me higher reading… any idea?
; Heaters
M143 S260 ; Set maximum heater temperature to 260C
M140 H-1 ; Disable heated bed
M305 P1 T100000 B4725 C7.06e-8 R4700 ; Set thermistor + ADC parameters for heater 1
M305 P2 T100000 B4725 C7.06e-8 R4700 ; Set thermistor + ADC parameters for heater 2
M307 H1 A535.7 C135.1 D2.6 B0 S0.8
M307 H2 A535.7 C135.1 D2.6 B0 S0.8
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try swapping the thermistor leads round (Don't try and print like that though) and see if the temps move with the thermistor if they do then you have a bad Thermistor or the wiring of that
Doug
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Also check that you don't have another M305 command later in config.g.
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yeah I swapped it with the 1st toolhead connector and 2nd toohead thermistor now reads normal. checking for bad wiring….
