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Though a little redundant due to the existence of robust calculators, Thingiverse’s Lalbritton’s 3D printed calculator allows one to calculate sines and cosines if said robust calculate has been misplaced, or if someone enjoys using functional 3D printed objects. The Ideal Harmonic Transformer allows the user to dial in the angle and then allows said user to read off of the Scotch Yokes.
If you want to build your own, Lalbritton has provided assembly instructions here and is also currently working on building 3D printed screws for the device, the reasoning discussed here.
(Thingiverse via Make via Boing Boing)
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