Old Style Windmill
thingiverse
This design is inspired by old windmills that were used to ground wheat into flour. I always thought they looked quite scenic and was surprised when I couldn't find one on thingiverse. This was designed in Autodesk Inventor. I went through several iterations trying to find a good gear ratio until I realized two of the same sized gears would obviously mesh well. The pictures and video only show the top two layers and a different gear ratio. Here are some videos: https://youtu.be/sdCS0PC_TcQ https://youtu.be/cmogc6ig7o8 As you can see, the gears don't mesh perfectly so there is some friction. Once the top is removed however, it spins quite fast. The model I uploaded shouldn't have this problem.
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