Sand-Casting Glass Bowl PART 2: glass pouring

[mrfnk]

thanks for your insight.

[EPhantom125]

Where do you get the glass used for these projects, what does it use to heat the glass, how does it not melt the metal that makes up the furnace or the steel slab used to make the bowls flat, and any ideas how to make a convex lens?

[halfmumi]

fantastic mate.