Quote Originally Posted by Neale View Post
I'll be interested to see how you drive a 7.5HP spindle off a domestic supply - that's going to dim the lights when you fire it up! But by the time you get there, I'm sure you'll have a solution...
Probably with one of these Digi phase converters which are a more balanced type of Rotary converter that are suited better to sensitive electronics like in VFD or CNC machine. Not cheap thou to buy or Run.!

http://www.digi-phase.co.uk/typef.htm

Did consider a 240 to 415 VFD but not sure they will do the job and I've heard they are a little Dirty regards the feeding crap back into the grid which can't be having if running Servos. Neighbours or YEB i'm not too bothered about but servos taking off or giving grief I can't live with. . .Lol

Any other suggestions greatly received.!