Working, thumbnail-sized papercraft single-stroke engine

https://www.youtube.com/watch?v=3a5aBs_ih9o

Aliaksei Zholner's Youtube account features various small, clever papercraft engines that he's made over the years, but the latest one, measuring a mere 18 x 13 x 22 mm, is the daintiest, most lovely one yet, and well worth the long hiatus since Zholner's previous outing. (more…)