Fan not controllable - config error?

[bastibasti]

Hi all,

I have converted a Wanhao Duplicator i3 with a Duet 2 Wifi board.
Basically at the moment I have one issue.
The printer has 2 Fans, one to cool the hotend, the other one for cooling the filament, of course.

• I can see both fans in the jobs and dashboard sections.

• The 60°C turn on value also works as expected.

• However, when changing the cold end fan manually, for example, because I think the radial fan has no need to run at 100%, there is no reaction. (Fan control of the extruder fan works fine however, but this is set by the slicer)

• You can see the screenshot, however one fan is running at 100% in reality, instead of 20%

Am I maybe making a common mistake?

Thanks in advance and

Greetings from Germany

Sebastian

[jay_s_uk]

@bastibasti
The tool fan is the part cooling fan of the active tool not the hotend cooling fan.
E.g, if T1 was selected, the tool fan would control fan 2 and so on.
So ultimately with your setup, the tool fan and fan0 are the same fan.
Thermostatic fan's can't be controlled manually through DWC.
You can hide the tool fan using the change visability option

[bastibasti]

@jay_s_uk said in Fan not controllable - config error?:

n of the active tool not the hotend c

Ok . Sorry for using the wrong words for the fans. I'm a noob

The part cooling fan is connected to the Fan0
The hotend cooling fan is connected to Fan1

If I want to control the fan1 with PWM, I have to deactivate the thermostatic control and add the fan setting to the slicers gcode instead?

M950 F1 C"fan1" Q25000                           ; create fan 1 on pin fan1 and set its frequency   
M106 P1 S1 H1 T60     

changed to

M950 F1 C"fan1" Q25000                           ; create fan 1 on pin fan1 and set its frequency   
M106 P1 S1 H-1      

[jay_s_uk]

@bastibasti adjust the S value in M106 to a lower value that works for you

[bastibasti]

@jay_s_uk

Thank you! That was an easy one