Block and tackle | Flaschenzug
thingiverse
A collection of tackles for educational use. With the provided files, different tackles can be created (1:1, 1:2, 1:3, 1:4 [and 1:5, if you're pulling upwards]). For other configurations edit the scad files. For each workpiece you need two strips: 1st with recesses for the nuts (strip_wXmY_N) and 2nd with recesses for the screwhead (strip_wXmY). The first number in the filename specifes the number of wheels, the second one the number of mounts and the end(s). For each wheel you need 2 wheel spacers. Depending on which bearings and screws you're using, the files need to be changed. For the uploaded files, 608zz bearings, M3x14 screws (DIN 912 / ISO 4762) and M3 nuts are working fine.
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