No doubt, you should get the biggest diameter spindle available or you are going to run into chatter problems. Even with 15K spindles, they are not fast enough to do justice to the small diameter tooling today. You also mentioned SS. You certainly don't want to machine SS with a 30 taper. BTW, any time one runs over 8K rpms, you should balance the toolholders. You will get better spindle performance, better tool life since you have minimized the potential for tool runout and better surface finishes. With small diameter tooling, with a balanced toolholder at 2.5 g, and indicated in, it should work very well for you. |