We can use them to cut things, create laser light shows, and also as a rangefinder.[Ignas] wrote in to tell us about [Berryjam’s] AMAZING write-up on creating an Arduino based laser rangefinder.

In this project, we create a joystick-controlled laser by connecting two servos to ... The following is excerpted from the book Arduino Project Handbook: 25 Practical Projects to Get You Started ...