In Part 1, we discussed theory involved in building and using an A-Frame Gantry. In this article, we will build one to practice with. At the risk of sounding like we're concocting a recipe, we are ...

Have you ever seen a flag being raised, or wondered how a mechanical clock works? Let’s take a look at some of the simple mechanisms that they use. Pulleys and gears. When a flag is raised, it will ...

I would like to invent a way for me to move large heavy objects (couch, pinball machine, furniture, etc.) up and down stairs in my house by myself without putting my health at risk. I'm looking for ...