Aram,
I have no answer but a caution...

When you move at .0001/min, 
will a 'step' of .0001 every minute be ok?

I'm not talking about stepper motors, 
I'm saying some analog servo controls will simply
force a jerk of .0001" every minute,

They will not move in an analog fashion at that rate.

They will not slowly creep thru that .0001" over one minute,
you may need .0001/60 to get anything near 'smooth' inside the minute.

I am mainly concerned with EDM, and like grinding, 
I cannot allow 'jerk' motion at low speed.

So be cautious, and best of luck.
TomP



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