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    Thermostatic heater fan and Simplify3D

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    Tuning and tweaking
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    • audryhomeundefined
      audryhome
      last edited by

      I use a thermostatic Fan 1 for my heater, and nothing to cool part.

      M106 P0 S1.0 I0 F500 H1 T45

      The problem is S3D understand this fan as a part cooling fan.

      As a result, it inserts M106 S0 at the beginning, because I specify no cooling.
      This produces clogging, because excessive heating, and is risky also for wiring, 3D printed carriage, etc....

      Only workaround is to specify 100% cooling, which is also risky for the part if I use later another fan for cooling.

      Any idea to overcome this and avoid having extruder permanently cooled ? (noisy...).

      Many thanks

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      • dc42undefined
        dc42 administrators
        last edited by dc42

        According to your M106 command, you are using Fan 0 for the heatsink, not Fan 1. Preferably, use Fan 1 or Fan 2 instead. If you can't do that, add parameter F1 to each of your M563 commands, then the M106 S0 command sent by S3D will be redirected to fan 1 provided that you have a tool selected at the time.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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        • audryhomeundefined
          audryhome
          last edited by

          Many thanks, works perfectly. Still learning gcode, but progressing....

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          • dragonnundefined
            dragonn
            last edited by

            Or you can go into the Firmware configuration in S3D and enter P1 into Fan Speed Control:
            0_1525278035187_12b69e31-590b-4b8c-a05c-c5ff62fe2e24-image.png

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