How do you want to use a simple old ceramic stovetop without a controller to make the most beautiful molded glass pieces? Now that's the poured pot.
Also known as the opening, the idea is to place broken glass in a clay pot and bring your furnace to 1700F, at which time the liquid glass will melt the hole in the bottom of the pot, hoping to create a complicated design.
It is very simple to do everything you need is something to hold the glass like a terracotta pot, something to catch the glass and a buffer. You can browse https://www.artglasssupplies.com/leaf-frit-casting-mold to learn more about frit casting.
We used terracotta clay pots without Lowes' $ 1- $ 4 price. We don't wash the ovens. We drill additional holes in the larger one. Pot sizes are generally 2 ", 4", 6 "and 8".
Try buying an "azalea" type pot because the pot is wider on a better base, trust me. Drill a larger hole in the bottom of the pot to make the glass flow more smoothly.
In 6 "and 8" pots, drill many holes, perhaps 6 to 8, because this will create a more attractive design. Be sure to use a rock drill. They won't break the pot, it's cheap and it will last forever.
I use Bullseye and make a 1: 1 or 1.5: 1 mix ratio with water. Yes, I know it is thick but it protects the shelf at this high temperature.
This is optional because you can let the glass drop onto the oven rack. Be sure to use a large amount of extra-thick furnace leaching.
If you're too nervous to let the glass fall onto the oven rack, use a multi-size ceramic plate to catch the glass.