A jam proof pulley for antenna masts or other projects. Includes clamps for Max Gain Systems masts and 1" O.D. US conduit.
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I needed a pulley for an antenna project and dreaded the inevitable jam with pulleys. So I designed a fix that works!
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- Printables
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- Electronics
- Licencja
- Creative Commons — Attribution — Noncommercial
A jam proof pulley for antenna or other projects. The hing mount and the pulley mount have a matching diamond interlock that allows the pulley to be mounted in one of two orientations, depending on your needs. There are also mast top mounts for Max Gain Systems masts and 1" O.D. US steel conduit.
The clearance between the pulley and the anti-jam guide is 0.2 mm. Modern printers are accurate enough for this to work well. If your pulley disc can't fit or spin, you can simply scale the disc down by 1 or 2 percent in the slicer and reprint it.
I did a video on how I made this in FreeCAD, also showing it in use.