Trammel of Archimedes

Trammel of Archimedes


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Build Instructions:
Animation video:
3d Print Video:

This mechanism consists of a base with three slots intersecting at angles. Three sliders are confined within the slots and are attached to a handle by pivots (screws) at fixed positions along the handle.

It is often sold in novelty shops with interesting names like Bullsht Grinder, Bullsht Masher or Do-Nothing Machine. Interestingly, most of the names are preceded with state names such as Arkansas, Kentucky, etc. I guess that’s how locals make fun of their neighbors.

Materials and methods

Print in PLA or ABS. You will need 4 screws for the sliders and knob.



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01fc29fff0d1ccf0501dad94dba732fb?default=blank&size=40Okay added this to the wanna print collection ago
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C6bb61fe38c9e9027d707b0d0dccae45?default=blank&size=40BGham added this to the Interesting collection ago
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Mini screen shot 2013 07 15 at 6.49.36 pmErik de Bruijn added this to the Things to print collection ago
Mini img 3621M. Ingle published this design ago