Sorry guys, no further progress. The work schedule is killing me, but I can't turn down OT. I had today off, but only because my truck wouldn't start. Spent the day tracking down a ground fault in the alternator wiring.
I spent a little time with the CNC after I got that handled, and an ugly little quirk in the machine that I thought I had fixed reared it's head. The control missed some steps, and crashed a 3/8 cutter into the fixture. Cutter destroyed, fixture will still work, but now I can't trust the machine. And I need a new cutter.
I'm tired & frustrated. I'll see what I can come up with tomorrow.