Leon,
Thanks for the reply.
Inverted operation is very tempting but we are talking about serious $$$$ for the materials. But we are looking at it as an option because the application is to cut wood and foam blocks and all of the junk will be on the floor.
A lot of steel and a crane hire for the day which is very expensive. It will be a long time before we mount it in the roof but keeping our mind open.
We need to get the hard drive back in the PC and delete the 7th axis and modify the permissions logic to enable the drive for their first run.
What software would I need to edit the I/O logic?
Dave