Using RC Brushless motors as spindle

[Jonathan]

I was under the impression your mill was under cnc control why the RT ?

I took the steppers off the milling machine and put them on the router. Didn't want to put them back just for one part. Rotary table was also the most accurate way I could make the hole for the spindle, not having a boring head.

Its a temperature thing if it doesn't get hot just keep increasing the speed in increments.

That's good, the bearing didn't get hot at all. ESC warmed up a little but that's all. I'll leave it running on 3100rpm for a while today and see what happens.

Sounds like mum & dad are gonna have a big leccy bill coming.

Hmm, didn't think of that - and nor have they :naughty:
The batteries I'm using to power it were going to be charged from my wind turbine. If only I had space to mount it...

I measured the runout again now it's mounted properly. I put a 10mm cutter in and measured 0.03mm about 10mm from the collet. If I put the DTI on the collet chuck itself it reads 0.01mm.