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do 2 starts. From the orange. :)


This part is called Micro Scout with Dark Gray Base the white version on your photo comes from 9748-1: Droid Developer Kit


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 ...

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