Cavman
12-11-2016, 02:03 PM
http://m.wimp.com/man-builds-a-tiny-single-cylinder-engine-out-of-nothing-but-paper/
Bob Denman
12-11-2016, 02:19 PM
:clap:
But doesn't it sound a bit like:
https://www.youtube.com/watch?v=5XcKBmdfpWs
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