No. 8: Variable Speed Stepped Pulleys - 507 Mechanical Movements

All the parts are designed so that no post-processing is needed (removing supports, sanding...) and no external parts are needed (except for the belts).

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Speed-pulleys are used for lathes and other mechanical tools, for varying the speed according to the work operated upon.

Other mechanisms from this same book

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I would really appreciate if you leave a like to this model so I can continue making many more 3D models like this one.