[Neumi] wrote in with a sweet robotics hack. It’s a 2D laser distance sensor (YouTube) made with a cheap line laser and an optical mouse’s flow-sensor chip used as a low-resolution camera. In one ...

After buying the RockSeed Cross Line Laser with Self-Leveling, all that changed. This $30 tool eliminated the guesswork of hanging mirrors, artwork, and tackling other projects around my house. I no ...

The GSL 2 Surface Laser is designed to continuously check floor levels and flatness. It has a working range of up to 30 ft or 60 ft with a target plate, allowing workers to inspect a large area for ...