1 cylinder scrap solenoid engine
what a abomination. a insult for the diy community, but hey it works and i can adjust the timing so whats the problem
i designed to model in such a way, that it can be printed in one piece, just free it up from support material, add lube and spin it for a while. then add a solenoid of the right size (take it from the step file, theres a model of it inside) and some sort of timing thingy.
add a flywheel at the end (after connecting a few of these in series)
step file of it can be downloaded here but its far from being done it just barely works.