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    Super strong NEMA17 actuator w/o gearbox

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    • o_lampeundefined
      o_lampe
      last edited by o_lampe

      Hi gents,
      after seeing this "jumping squirrel robot" video from Pintobotics, ( https://youtu.be/yWZ1tI-fphQ from 13:00 )
      I made my own Cord-Wrangler and lifted 5kg with a NEMA17 at 24V/1.2A.
      Wrangler_test.jpg

      Here's a short video of it.

      Has anyone seen this method before? Is it worth investigating, which cord is best?
      THX for reading
      Olaf

      //edit corrected the video link THX Ian

      droftartsundefined 1 Reply Last reply Reply Quote 1
      • droftartsundefined
        droftarts administrators @o_lampe
        last edited by

        @o_lampe Nice! But I think you meant this video for the first link: https://youtu.be/yWZ1tI-fphQ

        Ian

        TronXY X5S with Duet 3 MB6HC and Roto toolboard : Cartesian bed-slinger with Duet 3 Mini 5+ WiFi and 1LC : RRP Fisher Delta v1 with Duet 2 Maestro : Polargraph with Duet 2 WiFi

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        • o_lampeundefined
          o_lampe
          last edited by

          A little follow up:
          the guy from Pintobotics contacted me and directed me to his twisted string experiment.
          alt text
          The motion is nonlinear, but his equations made it possible to predict motion.

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