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    Possible to "override" fan speed from DWC?

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    • janjohundefined
      janjoh
      last edited by

      If I recell correctly there used to be a way to "Pin" a fan speed in older DWC. But, I have not seen that lately. And looking in the documentation for DWC I see not mention of it.

      Is it possible to acheive the same thing? I guess both "pinning" and "ofsetting" fan speed could be of interest.

      droftartsundefined 1 Reply Last reply Reply Quote 0
      • Phaedruxundefined Phaedrux moved this topic from Duet Web Control
      • droftartsundefined
        droftarts administrators @janjoh
        last edited by

        @janjoh Do you mean the 'pin' icon in the Fan Control section of the Print Status in the old DWC v1 interface?

        17dc50db-864c-44a8-96e0-b8b7f79b30ba-image.png

        This just changes if the fan shows all the time or not. DWC v2 and v3 have the same thing, it's just in a drop down menu when you click on 'Change visibility':

        3bf7d651-34e2-4076-94e4-fbf9c23daff9-image.png

        For 'offsetting', you can control the minimum and maximum PWM value by setting the L and X parameters in M106
        https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m106-fan-on

        The L parameter defines the minimum PWM value that is usable with this fan. If a lower value is commanded that is not zero, it will be rounded up to this value.

        The X parameter defines the maximum PWM value that is usable with this fan. The requested PWM value (S parameter) is scaled to be between 0 and X parameter value, and rounded up to the minimum if defined (L parameter). e.g. if X128 is set, S255 will set PWM to 128; S128 will set PWM to 64.

        Ian

        Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth

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        • janjohundefined
          janjoh @droftarts
          last edited by

          @droftarts Aaah... I thought it was to "lock" the fan speed. Never used it back then. And now I found a use for it when i kinda goofed my slice.

          Phaedruxundefined 1 Reply Last reply Reply Quote 0
          • Phaedruxundefined
            Phaedrux Moderator @janjoh
            last edited by

            @janjoh said in Possible to "override" fan speed from DWC?:

            I thought it was to "lock" the fan speed.

            I'm quite sure it was for doing that too.

            Z-Bot CoreXY Build | Thingiverse Profile

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