I think if you can get the rpm's and torque you need without the use of pulleys then I can't see why one couldn't do this, even then you can use your existing pulleys to add torque and adjust speed. Obviously the guy doesn't need the old pulleys on the DP, doesn't really say on the other two. I'm sure that 3 phase motor is a lot more efficient though.
BTW...I like the demagnetization tip the guy gives at the end of that video, never seen that one before.
Ninh, that Scariac is just crazy... but thanks, will be falling down the youtube rabbit hole all afternoon now seeing what else the guy has come up with.
To a small child, the perfect granddad is unafraid of big dogs and fierce storms but absolutely terrified of the word “boo.” – Robert Brault