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    Small motor hotend lifter.

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    Duet Hardware and wiring
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    • GeckoBox3Dundefined
      GeckoBox3D
      last edited by

      So, i'm looking into making a dual extruder machine and I've settled on having a second E3D hotend which is strapped to a small section of linear rail. Only one hotend will have this and will then be lifted by a lightweight motor. My question is, what motor? It only needs to lift in one direction, and a spring will return it to its normal position so the motor only needs enough power to overcome the spring. Preferably not a stepper, as this means getting the duex expansion board and whilst I'm not against this, it makes for an expensive upgrade. I'm considering a solenoid motor. They seem cheap and can easily come in at less than 100 grams if not lighter.

      What would others choose? How would a solenoid be hooked up to the duetwifi?

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      • dc42undefined
        dc42 administrators
        last edited by

        If the solenoid draws no more than about 1.5A, you could connect it to a fan output. But you must connect a flyback diode in parallel with the solenoid to protect the MOSFET.

        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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