New answers tagged


I have never broken an axle. That's despite dealing with some rather hefty forces that dwarf any LEGO motor. I made a flywheel (around 800g and 8cm radius) and spun it by hand up to 1,000 RPM (through a gearing system and a monstrous handle). That's 28 joules of kinetic energy there. I then released it all into a single wheel (with more gearing up), with the ...

Top 50 recent answers are included