Block and Tackle - customizable

thingiverse

This free construction set includes various blocks for a block and tackle, with options to choose the number of sheaves. Use caution, as it's not suitable for securing valuable objects or life. The entire risk is yours when using this object, and I am not responsible for any damages caused by its use. To utilize these blocks, you may need to tie knots such as the butterfly loop, bowline, double overhand noose, figure-eight knot, and a knot to keep rope tidy. For more information on these knots, refer to the provided links. Example setups are available for ropes with 4mm diameter and M6 bolts, including gun tackles (2x advantage), luff tackles (3x advantage), and double tackles (4x advantage). A successful test was conducted on a luff tackle, reducing load from 15 to 5 kg. To replicate the setup, assemble the single and double sheave blocks, then attach the end of the rope (A) to the self-tightening loop around the load. Near this loop, bind the single sheave block's eyelet into a butterfly loop. Thread the far end of the rope (B) through one sheave of the double sheave block, maintaining distance from the block. Then, thread B through the single sheave block's sheave and the second sheave of the double block. Keep everything untangled and tie a stopper eight knot in the rope's end to prevent slipping. Mount the eyelet of the double block using bowline or self-tightening knots onto your support structure. Finally, pull the load and secure it with a Blake's hitch around one of the tensioned ropes. For optimal performance, print the blocks with layers perpendicular to the holes and use full support. After printing, file the burger plates flat. PLA prints require lubrication to function properly. For information on replacing sheaves with ball bearings, refer to the provided formula for sheave thickness. The rope used in this case can be found at the given Amazon link.