Mechanical Expanding Pulley Box

This is another variation of a mechanical dice set box. What’s special about it, is that it has a two stage opening mechanism, operated by a single turning knob. By rotating the knob, the seven doors will rotate open before the 7 compartments appear in a linear motion. This is thanks to an expanding pulley mechanism. The box is 100% 3D-printed, the only thing helpful for assembly is some kind of lubricant to achieve a very smooth operating mechanism. The whole assembly is held together by a pri…

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