A Simple PVC Piston Enables All Sorts of Cool Projects Not a bad place to start on water cannon, to name just one. By David Grossman Published: Mar 20, 2017 5:10 PM EDT ...

There’s nothing quite like [Elliot]’s cherubic sense of wonder and maniacal laughter after he tests his fully automatic AA battery-launching air gun. That fires 600 rounds a minute. At … ...

During his extensive search for homemade air guns on YouTube, a simple PVC pipe gun grabbed his attention. “The gun was easy to make and seemed to make a loud noise,” Nagaraj said, ...

Different families of projects have different cornerstone components. To make cars, you need engines. Electronics, you need processors. Similarly, if you want to build anything that runs of air ...