Woodworking Plans Review

HK1 Tin Can Stirling Engine Plans, DIY Science Projects

A video of my engine built by someone on the other side of the country using my Tin Can Stirling Engine Plans from comptune.com These plans offer more than just the design and diagrams. They explain the technique I use for making these small projects out of metal. Stirling engines are easy to build. I [...]

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How to Make a Torsion Catapult – Table top size Mangonel

This is a great little catapult that uses torsion from twisted rope or string. It is more accurate to the types of catapults used in the middle ages because they didn’t have rubber bands back then but they did have rope. The rope can generate enormous force that is used to hurl a projectile. This [...]

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