Hi I have the same problem as you. My mychine is a Bridgeport VMC 460/12 control is Heidenhain TNC 370, inverter is Simodrive 611. The spindel parameters have been lost. Will you recover these parameters?
Ohio Mike - you posted about having parts for old Rayersford excelsior drill press. Might you still have? Trying to bring one back to life (just because....)