Now have possession of my mill

Well I managed to move that Moog S-24 I purchased on eBay today. It was
quite an undertaking. Just finding someone to move a 2 ton machine
350Km's and not charge me more than I paid for the whole mill was the
hard part.

The good news is that I received a manual with the mill, and although it
covers every Moog mill under the sun, it indicates the machine(s) use a
5V 1000CPR rotary encoder mounted to the ballscrews. Excellent.

Now I just have to decide how much of the, state of the art, Z-80 based
controller with its whopping 16K of ram I want to replace. Ummm, all of
it :)

The machine currently has an 'Inland Motor, AC Spindle servo unit' that
takes 0-10V signal along with a spindle enable and direction signal to
control the RPM and rotation of the spindle. It would be nice to keep
this and somehow interface it to EMC, I am just not sure if I can.

I am bit confused on 1 point. The machine was operated on 480V 3P and I
want to use 230 3P, and the specs for the spindle controller show either
230 or 480 input, then a power transformer with the controller
delivering 220V to the spindle motor. What is the point of providing
480V if the motor only needs 220V? But if it uses 220V ... I'm not
complaining.

The servos are quite large, and again if the specs in the manual can be
believed, are 120V DC. Yow. Hmm, that would make for a cheap unregulated
supply. No transformer required? :)

Well maybe not, each axis amp delivers 16A :(

The existing axis controllers and servo amps are again, Inland Motor
units. I guess scrap these and use Jon's PWM units?

Last but not least, the tool changer is pneumatic. Have to figure out
how to isolate and salvage this subsystem, or even if it can be.

Fun times ahead.

Dennis