On 2010-12-31, Karl Townsend wrote:

Your spindle sounds like a DC servo
but double check.

Why do you think that? It looks like a large 3 phase motor to me. 6 leads
going into it plus a ground. The Mitsubishi inverter tends to support that.
It doesn't look anything like a conventional servo and its about ten times
the size, LOL.

Speaking of VFDs. I had been looking at rotary phase converters to power
this machine, but why not just use a 1 phase in 3 phase out VFD rated for
the horsepower of the motor? It looks like the net cost would be about the
same. If I empty box the machine its not going to make any difference to
the rest of it.

And speaking of empty box... Any reason to keep that huge control box on
that big swing arm. Seems like its just in the way.

P.S. It looks like Iggy's spare servos run to fast for this machine.
Anybody else got some that might work? Yes, I have been shopping around
too.