Moire Caliper

thingiverse

The episode in **[ENGLISH]**: http://www.mojoptix.com/?p=178 L'episode en **[FRANCAIS]**: http://www.mojoptix.com/?p=182 <em>Note: To see more inventions and contraptions (like [this other one](https://www.thingiverse.com/thing:1068443 "Digital Sundial") ), suscribe to [Mojoptix on Youtube](https://www.youtube.com/c/mojoptix_com "https://www.youtube.com/c/mojoptix_com") !</em> **--------------------------------------------------------------------------------------** **Tadam !** A fully working caliper that uses a Moire pattern to reach a precision better than 0.05 mm. The accuracy should be better than 0.5mm. No batteries, no electronics, no gears... It's just a couple of images sliding one on top of the other. The two images have been mathematically designed to display a Moire pattern shaped like an "indicator triangle": the tip of the triangle will indicate the sub-millimeter measurement. <h4>How to use this caliper</h4> Simply read the cm and mm on the main scale, and then the sub-millimeter value on the Moire scale. <h4>A couple of short clips</h4> Check out this short video to see it in action: http://www.youtube.com/watch?v=W-Au9vlV2nQ This short video might help visualize a bit the Assembly (refer to the section "Post-Printing" below for more details): http://www.youtube.com/watch?v=-yDPLzs7wKM