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    Tool Fan and Primary Blower Fan Linked?

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    • tfjieldundefined
      tfjield
      last edited by

      So with Cura I start my first layer with no blower fan, and then increase the fan to 100% at 20 mm. It increases gradually. Today I noticed that DWC is showing that my tool fan is doing the same:

      d2c7fb9e-7771-490c-935f-1aa014ce5426-image.png

      If I try to change one ,the other changes, too.

      Here's the relevant section of my config.g:

      ; Fans______________________________________________________________
M950 F0 C"fan0" Q500                            ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 C"Primary blower fan"		; set fan 0 value. Thermostatic control is turned on
M950 F1 C"fan1" Q500                            ; create fan 1 on pin fan1 and set its frequency
M106 P1 S0 H-1 C"Secondary blower fan"		; set fan 1 value. Thermostatic control is turned on
M950 F2 C"duex.fan7" Q500                   	; create LED on pin fan2 and set its frequency
M106 P2 S0 H-1 C"LED"                		; Disable fan channel for LED
M106 P2 S255					; LED on by default
M950 F3 C"duex.fan5" Q500     			; create fan 3 on pin fan1 and set its frequency
M106 P3 S255 H0 T45              		; set fan 3 value. Thermostatic control is turned on
M950 F4 C"duex.fan6" Q500     			; create fan 4 on pin fan1 and set its frequency
M106 P4 S255 H1 T45              		; set fan 4 value. Thermostatic control is turned on

      Fan 3 is my tool head fan, and it's thermostatically controlled.

      In the files I'm printing, the blower fan speed is increased like this:

      M106 S13.4

      with slowly increasing values.

      Any idea what's going on?

      fcwiltundefined 1 Reply Last reply Reply Quote 0
      • fcwiltundefined
        fcwilt @tfjield
        last edited by

        @tfjield

        The DWC automatically displays the part cooling fan for the active tool.

        So you can hide your "Primary blower fan" and just use the fan the DWC displays.

        Frederick

        Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

        tfjieldundefined 1 Reply Last reply Reply Quote 1
        • tfjieldundefined
          tfjield @fcwilt
          last edited by

          @fcwilt I'm sorry, I'm not sure I understand. Are you saying that the "tool fan" isn't actually the fan blowing at my heat break, but it's just another name for the primary blower fan?

          jay_s_ukundefined 1 Reply Last reply Reply Quote 0
          • jay_s_ukundefined
            jay_s_uk @tfjield
            last edited by

            @tfjield yes. They're the same thing. The tool fan is the part cooling fan of the active tool. Nothing to do with the hotend fan

            Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

            tfjieldundefined 1 Reply Last reply Reply Quote 1
            • tfjieldundefined
              tfjield @jay_s_uk
              last edited by

              @jay_s_uk Ah, thank you! That makes sense now that I think about it... I never named the hotend fan "Tool Fan." It just seemed like the tool fan! lol

              And thanks @fcwilt!

              1 Reply Last reply Reply Quote 1
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