Let's See Your Mill

[PixMan]

Ah, technology! Back in the day when I was running those machines I was getting similar results...and smoke from the high sulfur cutting oil.

Now I have tools for my Bridgeport clone that get 4 to 6 cubic inches a minute out of my 2HP spindle, though I try to get near net shape stock so I don't have to rip. Down the road from me a shop where I know the owner he uses a 4", 7-insert high feed mill on his 50HP Mazak P6800 horizontal machining center and gets 109 cu/in/min in A36 and 48 cu/in/min in heat treated 4140. That's some serious MRR (material removal rate.)

I'd enjoy a machine similar to yours, but I'd want one with higher available spindle speeds so I could make piles of blue chips now & then.