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MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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No, this nothing like a belt driven system (CVT or Reeves drive), the belt changes speed due to the sheaves changing diameters, you can't change gear diameters without changing the number of teeth, I challenge anyone to make this and post a video of it not just spinning but actually changing speed from input to output!!