Just a quick update. Got my control box finished off this weekend and buttoned up. Also did the 3 bolt mod on the head. Wow, was that a PIA! I used a corded 1/2" hand drill with lots of torque. Clamped the head assembly in a big workbench vise. Once I got up to the larger drills (> 3/8") the bits really bit in and almost ripped the drill out of my hands. I stepped up in 1/64" increments and just used brute force. Lubricant helped a little.

I also finished off machinechick's head tramming aids. Went on to do a rough tune on the motors and started tramming. Should be done with that tonight. I was able to "cut air" and the movement looked and sounded great.

cheers,
Michael