Hi There,

I’ve heard that its possible to use an RC outrunner with bearings and collet shaft to make a CNC spindle.

I have a spindle (10mm OD shaft ) and the correct bearings. I need a suitable an outrunner and electrics that I can vary between 3000-12000 rpm. I can machine the spindle shaft down to 8mm which broadens the type of motor/outrunner to buy. I don’t work with RC tech and am just after some impartial advice about the kv to get this variation in RPM.

I’ve been looking at 250-270kv out runners but their top RPM appears to be in the 1500 RPM range which is only suitable for plastics and alloys and It would be good to have something faster.

I realise there are other question to answer but any initial thoughts or links would be most appreciated.

Thanks