Expanding Pulley
thingiverse
A mechanism for an expanding pulley as seen in 507 mechanical movements #224, "This represents an expanding pulley. On turning pinion, d, to the right or left, a similar motion is imparted to wheel, c, which, by means of curved slots cut therein, thrusts the studs fastened to arms of pulley outward or inward, thus augmenting or diminishing the size of the pulley." FILE INFO: the mechanism comes in 3 parts, the pinion, the slots for the studs, 5 studs. The file can be imported to a slicer without rearranging the parts, due to the fact that they are disassembled and laid out. This model is free to be used and modified by anyone who pleases to do so.
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