Lol, I’m all about upgrades too but its really interesting to me to see how far the stock one can go. 3/8s have been living fine at 3000sfm so that means I should be able to run a 1/4 at 45,000 rpm and 350ish ipm all things being equal.
Man, I crashed my gantry so hard last night! I had disabled the soft limits for some reason and setup the stock a little to close. Needless to say I blew up two wheels and slipped the X belt until the gantry slammed into a Y rail, but endmill was fine. 5 min later and back in business.
These things are almost indestructible!