[EricH]

Originally Posted by faust1706

If you really want to challenge yourself, you could make a robot that solves the cube

Already been done, in LEGO--I remember seeing a video several years ago. Incidentally, that means that LEGO motors ought to be powerful enough. So would a heavy-grade hobby servo.

I'd go with a paired system: Stepper motor (which, in code, is simply told to go X steps, I think [I've never programmed one]) with a servo on whatever holds the cube to actuate jaws or what-have-you. NEMA-17 stepper motors are cheap and if they're powerful enough to drive a 3D printer, they're almost certainly powerful enough to drive a cube scrambler. And they're fairly small.


As far as programming, you'd essentially say: Let X, Y, and Z be random numbers, and let A, B, and C be motors. Drive A to X, B to Y, and C to Z, reset all numbers, repeat n times. Not sure quite how to implement that, though; it'll depend somewhat on your system.