Make a 3D Scanner for 60€ Using Old Hardware

3d laser scanner

[Till Handel] just put the finishing touches on a paper he wrote about how to build a cheap 3D scanner — mostly out of spare parts.

Using parts from old printers and notebooks, he’s cobbled together this rather rough-looking laser scanner. But don’t be fooled by its looks! It’s capable of scanning 360° around itself at distances from 0.3 – 5m, making it an excellent candidate for scanning rooms.

It uses a line laser and a webcam mounted on an arm driven by a stepper motor, which looks like it’s out of an old optical drive. An Arduino Uno and an A4988POW stepper driver control the system. The paper (Caution: PDF) is very detailed and published under GPLv3 (a general public license).

It works the same as many 3D scanners — a line laser provides a 2D profile/outline of the object being scanned that the camera picks up. As the system (or object) rotates, new profiles are recorded and sewn together to form a complete 3D image.

3d laser scanner diagram

To increase the resolution and accuracy of the scanner, you can always put a better camera on the end!

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