Jamie Matthews has updated details to Batteryless Supercapacitor Solar Speaker.Automotive engines have transformed over the years, but two main gasoline powered combustion engine designs remain: the 2-stroke and the 4-stroke.

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Posted in Engine Hacks Tagged 3d printing, 4-stroke, internal combustion, Otto cycle, resin printing Post navigation

But if you want to see the great sight of watching combustion take place in slo-mo, you have to check out the video below.ģD printing has come a long way in a short time, and may even hold the key to practical scramjets for hypersonic aircraft.

The experiment progressed into trying different fuels and learning the differences between them, as well as uncovering a new-to-him mystery: Why was the engine misfiring, and why did the different fuels act so dramatically different? Indeed, more learning and more experimenting is needed.

Combining his newly learned resin polishing knowledge with his knowledge of 3D printing, printed a new cylinder and polished the resin until it was transparent. While researching possible transparent materials to use as a cylinder on his model engine, he learned about resin polishing. Thanks to advances in material sciences, he got his wish as seen in the video below the break. No, he wanted to see it in the cylinder itself. But wanted to see what happens inside a 4 stroke engine, and it wasn’t enough to see it from a transparent cylinder head. And for any type of longevity or performance, that’s certainly the right choice. When we think of a typical four stroke internal combustion engine, we think of metal.

4 cycle combustion engine