hsmag.cc/3D-PrintedGenerator
We’ve seen 3D-printed generators before: highly technical, superbly accurate, and made for a specific purpose. This one is different: it’s extremely simple. And we say that in a good way; the simplicity is what makes the design so compelling. All you need to make this is a 3D printer and some easily accessible hardware parts, such as nuts, bolts, a wire, and magnets.
The bit that generates the electrical current is actually the smallest part of this model; most of it is a 64:1 ratio gearbox, meaning that for every turn of the handle, the rotor (that’s the part with the six magnets attached to it) spins 64 times, which is enough to generate 12V of current.…
