The sensor detects the reflection angle, which is used to calculate 3D measurements. Scanners which use laser triangulation are typically portable and easy to use but less accurate than other types.

When the Raspberry Pi 4 came out, [Frank Zhao] saw the potential to make a realtime 3D scanner that was completely handheld and self-contained. The device has an Intel RealSense D415 depth-sensing ...

Laser scanning or rastoring type micrometers are commonly applied and provide sufficient accuracy in most stationary or benchtop applications. With a handheld micrometer the device can be operated ...