OK, I found an air driven spindle that I think will work.
http://www.airturbinetools.com/hss/602cat.html
So I searched on how to lock the spindle and M19 will lock it at the tool change position (or what position I specify)? CNCZone thread named “Spindle orient and A axis smoothing”.
I assume that is very similar to keystrokes MIDI, ORIENT SPINDLE?
I don't know G code so any advise you can give will be great.
Thanks,
Dennis