I'll throw another technique out there...cut off the part with a saw in the spindle. It is a useful alternative when you have small parts and there is a lot of remaining [difficult] material that you don't want to machine away.
I used this technique to part off some 1" x 0.25" x 0.25" contoured parts that I made in M4 tool steel. There was almost another inch remaining of the clamping butt, so I used a thin carbide saw to part them off.
The saw will leave a poor finish, so I left 0.3mm of stock for cleanup. I then went back and I made a set of contoured jaws machine the bottom of the part to height and added a chamfer. |