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    Extruder motor not working

    Duet Hardware and wiring
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    • Craig
      Craig last edited by

      I tested it for polarity and wired it the same way as the three axis motors. They move the extruder doesn't. Its a Bowden on a Delta using RepRap firmware. There is no hot end yet and no heater. THe motor is geared 5:1. I am just trying to calibrate the motor. I am probably missing something simple but I can't seem to find my problem. Any suggests as to where to look next? Should I connect it to X and see if it turns?

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      • Craig
        Craig last edited by

        When I try to extrude I get a Red circle with a line through it!

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        • Phaedrux
          Phaedrux Moderator last edited by

          If you have no hotend configured you probably aren't reaching the safe extrusion temperature.

          During testing you can use M302 to allow cold extrusion.

          https://duet3d.dozuki.com/Wiki/GCode#Section_M302_Allow_cold_extrudes

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          • Craig
            Craig @Phaedrux last edited by

            @phaedrux Thanks, I will try that, but my hotend thermistor is absent and the control shows 2000 degrees.

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            • dc42
              dc42 administrators last edited by dc42

              In order to extrude:

              1. The extruder drive concerned must be assigned to a tool. This is done in a M563 command in config.g.

              2. That tool must be selected. Use a T command to select it, for example T0 to select tool 0.

              3. If the tool definition includes any heaters, either those heaters must be at 160C or more, or you must have enabled cold extrusion using M302.

              HTH David

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              • Craig
                Craig @Phaedrux last edited by

                @phaedrux Thanks, it was a combination of no thermister and allowing cold extrusion. I had to connect a thermister and the do M302P1 and I was able to configure my extruder. Thanks for the quick help!

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