Simple Block and Tackle
thingiverse
A standard three-to-one block and tackle is built with a sturdy wooden or metal beam, typically 6 feet long. The system consists of four main components: the fixed pulley, the movable pulley, the rope, and the hook. #8-32 x 1-3/4 inch machine screws are used to secure the blocks in place, ensuring they remain rigid and stable during use.
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