Quote Originally Posted by Ricardoco View Post
Jazz do you mind if i ask why you need such high spindle speed?
Mainly because I do alot with softer materials like aluminium, brass using smaller diameter cutters (<6mm) and find 12-15K the best speed range regards feed rates, finish etc. Also when 3D finishing using really small multiflute ballnose cutters (<2mm) then even 20K rpm is on the edge of too slow. Same goes for V carving, engraving.!!
On the flipside I want sub 1000rpm for large fly cutters, boreing, drilling etc and full control for tapping.