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Temperature readings not consistent

Rusty105

Active member
I thin I may be having config issues on my Klipper printers. I currently have 3 printers in my downstairs room. Room Temp is 62F, which is about 17C +/-.
In the same room is a Prusa MK3S+, Extruder is 16C, Bed is 16C
My Switchwire is Extruder 23C, 18C Bed, 32C on the Nighthawk Tool board (it has been on for a while)
My V0.2 is Extruder 20C, Bed 18C, Chamber 23C (un-enclosed at the moment).

I checked the configs, and it looks like the sensor_type is correct for the Vorons, but they appear to be way off, compared to the Prusa. None of the printers have run in well over 12 hours, and they are all within an eight foot circle of each other. Am I missing something in the config?

For the Switchwire (Revo hotend)
[extruder]
step_pin: nhk:gpio23
dir_pin: nhk:gpio24
enable_pin: !nhk:gpio25
heater_pin: nhk:gpio9
sensor_pin: nhk:gpio29
pullup_resistor: 2200
#sensor_type: EPCOS 100K B57560G104F
sensor_type: ATC Semitec 104NT-4-R025H42

Bed heater

[heater_bed]
heater_pin: PA5
#sensor_type: Generic 3950
sensor_type: NTC 100K MGB18-104F39050L32
sensor_pin: PA0
#control: pid
#pid_Kp: 52.012
#pid_Ki: 0.702
#pid_Kd: 963.516
min_temp: 0
max_temp: 130


For the V0.2

[extruder]
heater_pin: umb:gpio4
sensor_type: ATC Semitec 104GT-2 # Change this to your actual thermistor type
sensor_pin: umb:gpio29
pullup_resistor: 2200

[heater_bed]
heater_pin: gpio21
## Check what thermistor type you have. See https://www.klipper3d.org/Config_Reference.html#common-thermistors for common thermistor types.
## Use "Generic 3950" for Keenovo heaters
#sensor_type: Generic 3950
sensor_type: ATC Semitec 104GT-2
sensor_pin: gpio26
smooth_time: 3.0
#max_power: 0.6 # Only needed for 100w pads
min_temp: 0
max_temp: 120
control: pid # Do PID calibration after initial checks
pid_kp: 68.453
pid_ki: 2.749
pid_kd: 426.122
 
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