Quote Originally Posted by dertsap View Post
replacement KBLC-19PM (on order)

put it through a quick test as is and it seems ok , I did a bunch of milling on an aluminum block and it cut pretty well on the outside profiles and internal bore ,
I started small with a 1/4" 4 flute end mill , 50% engagement with a .05 depth of cut(ramped) , 50ipm at 4500 rpm . I'll test it later with some bigger tools and see what happens , if it holds up as it has then it should be ok , it's certainly nothing to impress with but it may turn out to be ok ,and hopefully much better with the new electronics , it still seems to me that the spindle setup is a joke as is the plastic gearing
There is nothing wrong with either the spindle nor the gearing if used within their capabilities. If you want to get more out of the unit then the engineering is up to you.