I understand the g37 location, what I am trying to achieve is to get the spindle position the same reference position each time for the spindle height from the nose for tool zero the height can vary somewhat if the spindle isnt in the exact location as it was previously used.
This needs to be done each time the power is cycled, so the height will vary slightly depending on the exact position of the spindle to the tool setter as that little plate isnt perfectly flat.I am probably splitting hairs who knows?? That little program positions the spindle to the toolsetter the same each time for me as my toolsetter is always in the same position on the table.

This at least gives us something to read besides facebook!!