Hi Greeny

Thanks for taking the time to reply.

I have seen the glass equipment and yes, it is major engineering, saw a fantastic machine that did brilliant cutting at a Glassex show, a huge beast and at a very reasonable price of 120,000 Euros lol.
The way you do your sandblasting is identical to mine except i also do deep carving on glass as well. Same principle though and I use a plotter/cutter for the mask (which I suppose is a small CNC).
I would love to build my own but I think time will be against me there, mind you I don't know how long it takes???
Most of the stone carving machines I have seen are pretty much the same format as a wood carving machine but with a recirculating water supply and filter for the coolant spray where needed.

Thanks again

Alan

Alan