ahhh thanks guys. BW, good point on the breakage. What I am doing here is not really tile work, but I am bidding on a job for a chandelier that is basicly what I described above, but instead of tiles, I would be making glass pieces that will mount somewhat like tiles. Its a big job involving making bronze molds to blow the glass into- I got qoutes for the foundry work... I know how my costs on making one piece, but I was struggling on figureing out the # of pieces I would have to make..
If I get the job I'll post some Pics..
