I thought that only an X1C had a chamber temperature sensor.
Looking through the Start GCODE associated with a P1S I didn’t find any references to M142, but I did find several M106 references, where with
M106 Px Syyy, where x selected the fan; 1=extruder, 2=aux, and 3=chamber; and S=speed(0-255).
Looking at this article:
It says:
Code breakdown:
M142 P1 R35 S40
M142: Firmware node reference and activation
P1: Parts cooling fan (presence to activate to aid cooling hotend)
R35: Set Chamber Temp
S40: Speed of fan
However this command doesn’t mean anything to a P1S since it doens’t have a chamber temp sensor.
Does P1 mean something different for an M106 vs. a M142 command?
Why is the example referencing the “Parts cooling (extruder) fan” and not the chamber fan?
Also, defining S as the fan speed doesn’t make sense. Without an active heater, doesn’t the fan speed have to be dyamically varied to maintain a target temperture?
Is it really a minimum fan speed?
I’m so confused…