slumping overhang

tom suter · Post by **tom suter** » Wed Dec 10, 2003 5:48 pm

I am getting ready to slump and oval platter 12" across by 9". Right now it is 3 layers thick about .300 and I have a 1/4" overhang. I have never slump with an overhang do you think this is too much of an overhang and that I should cold work it and get it down closer.

Thanks

Bob · Post by **Bob** » Wed Dec 10, 2003 5:53 pm

Hi Tom,

Should be fine. Slump at the lowest temperature possible to minimize the mark that the rim of the mold will leave on the back of the piece.

Cheers,

Bob

charlie · Post by **charlie** » Wed Dec 10, 2003 6:09 pm

however, if it does slump a little over the edge, when it cools down, the contracting glass can shatter your mold. damhikt.

for 1/4", i'd probably risk it. however, i have a bowl form that i wheel threw; or actually, i have half of one, on my mold shelf.

Stephie · Post by **Stephie** » Wed Dec 10, 2003 8:24 pm

Is it better to slump lower for longer to not pick up the texture?
Stephie

Brock · Post by **Brock** » Wed Dec 10, 2003 8:29 pm

Stephie wrote:Is it better to slump lower for longer to not pick up the texture?
Stephie

Yes. Try 1150 for 30 minutes. Check it. Brock

Bert Weiss · Post by **Bert Weiss** » Thu Dec 11, 2003 12:59 am

One rule of thumb is that an overhang that is the same dimension as the thickness of the glass is OK. You can stretch it a bit more with pretty good luck.

I always try to get the job done with lower temp and more time, until impatience sets in and I bump up the temp to get it over with...