A huge set of working digital calipers

Cameron Coward at hackster.io reports on Matty Benedetto, who built these gargantuan digital calipers that are big enough to measure almost anything.

Every maker needs a set of digital calipers, even if they’re the $20 kind that real engineers and machinists scoff at. Unfortunately, all of those $20 calipers are 6” models and some things happen to be longer than 6”. To address that mismatch, Matty Benedetto of the Unnecessary Inventions YouTube channel built these gargantuan digital calipers that are big enough to measure almost anything.

An Arduino UNO R4 WiFi board measures the distance between the jaws using a ToF (Time-of-Flight) sensor.

Most of the mechanical parts were 3D-printed on ELEGOO OrangeStorm Giga and Bambu Lab H2D machines, with laser-cut acrylic panels for diffusing the display LEDs and for the scale.

Check out the video below and more here. And if you like large things, check out John Parks’ Arduino Grande.

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