my first try at casting not 100% glass did not total melt at 950C for 4 hr and mold suffered thermal shock my 15 inch ways 13 lb the 18 inch is in kiln know and way 18.5 lb, will be done in 10 days I am using plate glass at this time it was free if any one wants up dates e-mail me. _______________________________________________ ATM mailing list http://www.atmlist.net/