The Bobbinator

Linear actuators are motors that work in a straight line. They’re very useful for controlling valves and levers, building robots, and retrofitting old mechanisms for digital control. The simplest form of linear actuator has only 2 positions, while more complicated actuators can be positioned just like stepper motors and servos.... Read more »

Backyard Zipline

  • By
  • 12/18/2012 @ 10:42 pm

This will give you all the information needed to plan, purchase and build a backyard zipline (and launch pad) without any specialized parts. I purchased everything at the local hardware stores. I did it 100% all by myself, and so can you. Read more »