Quote Originally Posted by JAZZCNC View Post
Don't talk stupid. I'd rather have BT 30 spindle with option of ATC than 3Kw ER spindle anyday of the week. However what it really needs are high rpm rated bearings which can be replaced if needed.
I'd rather not. I'd rather have a proper ATC spindle. A proper 7-15kw spindle. That BT30 spindle is limited to at most 10k RPM at the cost of rather expensive bearings.

If he needs a mill, a proper mill with BT spindle will be better, as DIY setup will not hold real tighter tolerance like a proper mill.

You know it, i know it. Thats why you have a router and a second hand proper mill. Ha, who are you trying to convince...