He recently a posted 150 step build log for his fleece-covered Portal turret project. If you can get over the need to click-through 30 pages of steps, there’s a lot to like about this project.

Last year, [Alvaro] built a laser turret robot for the DEFCONBOTs competition ... made galvanometers — but it’s really not that easy. Instead, [Alvaro] opted to order a few laser show ...

The sentry turret also has a charging port so you don't have to take it apart to replace the battery. A simple power switch lets you turn the device on and off. One of the hallmark traits of the ...