Toohead CT : CMFB103F3950FANT not compiling ?

[kiklo]

As pr doc. this is my toolhead/ chamber thermistor :
"

CMFB103F3950FANT​

In our Toolhead PCBs, we use an NTC10K SMT thermistor. The datasheet can be found here.
"

But it will not compile my printer.cfg. ( and testing with any other; temp is far out - 70C at room temp.

What is the correct setting to use ?


I have tested these :

#####################################################################
# Additional Sensors
#####################################################################

[temperature_sensor chamber_temp]
## Chamber Temperature - T1
# sensor_type: Generic 3950
# sensor_type: ATC Semitec 104NT-4-R025H42G
# sensor_type: TDK NTCG104LH104JT1

sensor_type: CMFB103F3950FANT

sensor_pin: PF5
min_temp: 0
max_temp: 100
gcode_id: chamber_th

 

[ah2049]

This is kind of a guess, but do you have the definitions for the thermistor in the config file? If I understand it correctly, you need to define the thermistor characteristics before you can use it.

LDO thermistor code:

[thermistor CMFB103F3950FANT]
temperature1: 0.0
resistance1: 32116.0
temperature2: 40.0
resistance2: 5309.0
temperature3: 80.0
resistance3: 1228.0

In theory, if you place that code before your additional sensors section, it should work.

 

[kiklo]

Thx
probably missing, makes sense.

testing

 

[kiklo]

Did the trick.

Not elegant as I just put it in front of my section.

should be in an other file somewhere.
I might find out where later.

Thx again.

 

[ah2049]

No problem, glad it's working now.

Happy printing!