I was looking at ArcEurotrade site the other day and noticed the Sieg CNC mills they sell have a max spindle speed of 7000 rpm. Then came the idea the Syil X3 is a converted Seig product and the heads look very similar what is the feasibility of fitting the 7K motor to the X3 and would the bearings take the increased speed. If the conversion is possible it would be a very desirable upgrade to the good old faithful X3.
Any one got any thoughts or can Syil comment?

Thanks

Mike