In a world where folding a paper airplane that makes it onto the track at a Formula Drift event is the stuff of heroes, we present these tiny functional engines from paper and a little scotch tape. A slap in the face of the 3D printing crowd, this thumbnail sized engine, constructed by Aliaksei Zholner, features a fully reciprocating bottom end as the video footage shows in detail.
It shows the valvetrain taken of so we can see the pistons pound up and down in the cylinder and then it is turned upside down to reveal all the intricate inner workings as the camera peers deep into the crankcase part of the engine. There are even timing marks on the oversized drive gears. Next the top ‘end’ is looked at. You can see a camshaft actuate valves. It took us a few rounds to take in what we were seeing the scale is so small. It’s hard to believe your eyes.
Just when you get comfortable with these optics. A pneumatic device is attached and the engine can be seen and heard running … and it’s turning some decent rpms. As outlandish as that is the second video adds a throttle to the equation.
Made of paper too, the contraction is an intake pipe with throttle plate and a way to progressively open and close it. Out comes the balloon and in this trim that engine sounds really mean and aggressive as it is revved quite substantially
Zholner has built a V6, 4-cylinder, and an inline-4 as well.
Enjoy the videos below, and tell us, if you were going to build a paper car, what kind of car would you put these engines in?!