WarmGlass.com

mor,
Is there no room in your brain for a different opinion? If not, you have no room for growth. Last time we disagreed, I had to bring in Ted from Bullseye to explain where you were incorrect. This Board is an absolute waste of my time. I am no longer following.

The pot should only crack if you crash cool it. I've used all of mine many times, with only one - abused by me with a crash cool - cracked. I wrapped a wire around it, and was able to use it two more times before it poured out onto my kiln floor. Don't waste time on broken pots. Also, after 10 or so...

From Morganica: Uhm...no. If you have good schedule practice to begin with, nothing changes. The programming would be the same. I'm not sure where you get the notion that two layers of plain, clear glass and three layers where the top is decorated are "similar." "I prefer to stack 'pr...

Morganica,
Replace "similar" with pre-fired elements.
Please explain "good schedule practice" that applies to multiple set ups.
Rose

William, you are absolutely correct!!!

The reason for pre firing is to eliminate trapped air. You can do what Monica said, pre firing only the designed piece, then stack with unfired layers for finish fire. I prefer to stack 'similar' items for easier programming. Morganica may be firing some of her glass less times, but she is combining...

..."intention is to have the finished piece 1/2-5/8" thick." I could ask a million questions, but I will instead jump right in. At 1/2-5/8" thick, I am assuming you will dam your project to prevent spreading. Pre firing blanks helps in preventing bubbles, but if not fired properl...

Bullseye:
Depends on how fast or slow you go up, and how long you hold at temps, but generally 1300-1350 degrees Farenheit.

SR,

If the kiln went up as fast as possible, glass pieces can shatter all over the kiln.

During the drip and annealing phases, the spalling of the metal can throw glass around the kiln.

DQ
ps. just use clay

A thought:

Does Bullseye use the same annealing schedule for thin as for 3mm?

It might claim to be 2mm, but it is thinner than that. I never took photos of the failures, but I did box them up to go back to Bullseye. It has probably already shipped. To be clear, it only happens with yellows and piss greens. Other colors like pink, blue, and dark greens don't have any problem s...

This drop in this student's piece didn't need to be this high. The goal was to get it to fill up the translucent white onto which it was dropping, with a finished piece being consistent 6mm. I post this photo to show the use of clay instead of metal for drops. The hold required for leveling it all o...

Steven, this is not the thin opaque. It just shows my method of stretching. I don't have photos of the thin opaque failures, but they were stretched the same way. The design in this piece is trrips of factory glass, stacked like a plaid, and stretched out to 6mm in thickness. It is sandwiched betwee...

Here is one example. Lay up is on one 10 X 10" piece of 3mm translucent white. The stack is a total of 12mm of 8 X 6" of glass. Many things are going on here, including travel, but the goal is to get the stack to stretch to the size of the transparent white.

I have used goo gone of denatured alcohol to remove plastic labels and their leftover glue. Works OK.

Andy T:
The old paper labels come off with water soak and the tiniest bit of (any cheap) soap. they are reusable.

More on stretching:

If stretched by dropping, Bullseye Opaque Thin seem to be OK, but if stretched flat on the shelf, it breaks shatters, and shatters the rest of the glass. Has anyone experienced this problem? What causes it? I have theories, but none of them make sense to me.

Maybe I haven't learned your method of trapping irid.

I have been experimenting with the stretch and flow of glass. Irid surfaces can be trapped inside of glass, but if the glass stretches or flows, the irid resists, as it cannot stretch. The stress shows up in the annealing range with major and minor cracking. By rapidly, I meant the slightest stretch...

Also, irid trapped inside of moving, flowing glass rapidly becomes non-compatable.

Ceramic glaze can also be low fire, and will mix/mess with your glass. High fire glazes, used for most floor tiles will withstand a normal potmelt.