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    How can I use my E1 heater as a pwn controlled fan port

    Duet Hardware and wiring
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    • maroonds
      maroonds last edited by maroonds

      that turns off when the extruder gets below 30 degrees? I'm on the latest RRF3.
      I'm trying this on my duet maestro.
      Any help is greatly appreciated.

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      • dc42
        dc42 administrators last edited by dc42

        1. Use M950 to create a fan using the E1 heater output:. Assuming you already have fans 0, 1 and 2 then the next available is 3:
          M950 F3 C"e1heat"

        2. Use M106 in the normal way to make fan 3 thermostatic. If the hot end thermistor is configured as sensor 1:
          M106 P3 H1 T30 S1

        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

        maroonds tekstyle 2 Replies Last reply Reply Quote 0
        • maroonds
          maroonds @dc42 last edited by

          @dc42 Thank you! But whats the polarity on those connectors?

          droftarts 1 Reply Last reply Reply Quote 0
          • droftarts
            droftarts administrators @maroonds last edited by

            @maroonds See https://duet3d.dozuki.com/Wiki/Duet_2_Maestro_Wiring_Diagram

            Ian

            Cartesian bed-slinger with Duet 3 Mini 5+ WiFi : RRP Fisher Delta v1 with Duet 2 Maestro : TronXY X5S with Duet 2 Wifi (in progress)

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            • tekstyle
              tekstyle @dc42 last edited by

              @dc42 said in How can I use my E1 heater as a pwn controlled fan port:

              1. Use M950 to create a fan using the E1 heater output:. Assuming you already have fans 90, 1 and 2 then the next available is 3:
                M950 F3 C"e1heat"

              2. Use M106 in the normal way to make fan 3 thermostatic. If the hot end thermistor is configured as sensor 1:
                M106 P3 H1 T30 S1

              In your example, what if I needed pwn1 as a fan port. Assuming I have fans 0,12,3,4,5,6,7,8. Do I do m950 F9 c"pwn1"
              ?

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              • dc42
                dc42 administrators last edited by

                If you mean duex.pwm1 then that port is shared with heater 3. You can use one or the other.

                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

                tekstyle 1 Reply Last reply Reply Quote 0
                • tekstyle
                  tekstyle @dc42 last edited by

                  @dc42 said in How can I use my E1 heater as a pwn controlled fan port:

                  If you mean duex.pwm1 then that port is shared with heater 3. You can use one or the other.

                  I just realized it after reading through some more literature that it's either or. Thank you for confirming.

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