Using RC Brushless motors as spindle

[Jonathan]

owch, but as M250cnc phil said to me not to long ago"give your bearing a chance to run in at low (ish) speed before you start flapping about heat" or "drag" in your case

im getting on fine using 350w 12v on my 1700w motor, i dont think you will need to throw 6000w at yours if your using it on your router

I did the mount today, not the neatest of things I've made with the rotary table but it works:




Spinning...nice effect:


I ran the motor in for about 5 mins on 12v, soon got bored of that (I'll leave it running properly tomorrow). So I tried carefully grasping the motor body with some kitchen roll to protect my fingers - couldn't stall it, not even close . It merely drew 550w and about 53 amps. I'll have to think of a safer way of testing the power at higher voltages.

I think I'll stick with the batteries for now unless anyone can point me to a 50v PSU that can deliver a LOT of current. Maybe a few of those switching PSUs people have been using for steppers on eBay...