Multi Grinder, buffer, disc sander, belt grinder design questions

[eddowens]

Imbeciliac is right the motor you have will be just fine as for the VFD all I have seen where 3 phas I do know they make them for single phase but remember these all are spendy , I have a good up to 5 hp 3phase rotor converter to give away to someone but is so heavy the cost of shipping is out of reach, I would figure out speeds and go with a pully system it would save you tons of cash