Chris,
How about drilling a plunge point? You could pretty much drill it where ever you like an go from there, couldn't you? I haven't used the technique yet, but I have a job coming up using a tough material that's a mixture of nickel, tungsten and some other stuff, and it's a bear to cut. The first part was made from brass while we were waiting on the denser material to come in, and I just used a Z-level roughing operation with a spiral engage, but I don't think I'll get away with that on the next part. I'll be watching to see what you think of plunging. |