Search found 1462 matches
- Mon Jan 17, 2022 6:58 pm
- Forum: Techniques and Tools
- Topic: Sandblast grit
- Replies: 6
- Views: 8832
Re: Sandblast grit
were there not debates here in the distant past where you could get better results when firing glass by using Aluminum oxide grit and NOT carbide. Yes, several debates. Mostly they centered on a belief that sandblasting with silicon carbide is more likely to devitrify upon firing. The only "pr...
- Mon Jan 17, 2022 5:25 pm
- Forum: Techniques and Tools
- Topic: Sandblast grit
- Replies: 6
- Views: 8832
- Sun Jan 16, 2022 6:02 pm
- Forum: Techniques and Tools
- Topic: sandblasting dissipate?
- Replies: 6
- Views: 7533
Re: sandblasting dissipate?
You'll get a matte finish. Exactly how matte depends on the grit used during the sandblasting, the temperature, and the hold time.
- Tue Dec 21, 2021 9:20 am
- Forum: Techniques and Tools
- Topic: Fusing glass to a ceramic tile
- Replies: 1
- Views: 4258
Re: Fusing glass to a ceramic tile
Glass and ceramic have different coefficients of expansion, so will crack if fused together. The cracking could be anything from crazing, with small cracks everywhere, to so severe that the two will break apart after firing.
Experiment if you wish, but don't do it with anything valuable.
Experiment if you wish, but don't do it with anything valuable.
- Sun Dec 12, 2021 10:26 pm
- Forum: Techniques and Tools
- Topic: Is is possible for glass to get too hot?
- Replies: 4
- Views: 5431
Re: Is is possible for glass to get too hot?
I'm guessing that my kiln shelf paper wasn't designed to deal with temperatures like that and sort of disintegrated. If you used thinfire paper, it's only good up to about 1525F. If you used fiber paper, each paper has a rating for its maximum temperature. Firing in a crucible would have probably w...
- Sun Dec 12, 2021 1:07 pm
- Forum: Techniques and Tools
- Topic: Is is possible for glass to get too hot?
- Replies: 4
- Views: 5431
Re: Is is possible for glass to get too hot?
The glass will get more and more runny the higher the temperature. By 2000F it will be more like a liquid than a solid and you will most likely need some sort of container (crucible) or barrier (dam) to keep it from running off the shelf. The ash will melt and mix with the glass at temperatures abov...
- Fri Dec 03, 2021 8:37 am
- Forum: Techniques and Tools
- Topic: schedule issue-did I screw up?
- Replies: 2
- Views: 4469
Re: schedule issue-did I screw up?
No problem.
I routinely turn the kiln off at 750 and let it cool on its own to room temperature with pieces as thick as 1/2", even 3/4". Your kiln would have to cool at several hundred degrees an hour for it to be a problem, and no kiln cools that fast on its own.
I routinely turn the kiln off at 750 and let it cool on its own to room temperature with pieces as thick as 1/2", even 3/4". Your kiln would have to cool at several hundred degrees an hour for it to be a problem, and no kiln cools that fast on its own.
- Thu Nov 11, 2021 11:14 am
- Forum: Techniques and Tools
- Topic: Fusing problem
- Replies: 2
- Views: 5895
Re: Fusing problem
Three options. 1. Go slower from 1100 to your top temperature. 2. Hold longer at the top temperature. 3. Increase the top temperature. Any of the three will work. Just keep notes on what you try. Tack fuse temperature usually anywhere from 1350 to 1450, with a five to ten minute hold, depending on t...
- Sun Oct 31, 2021 1:38 pm
- Forum: Techniques and Tools
- Topic: Drop out firing schedule
- Replies: 1
- Views: 3267
Re: Drop out firing schedule
Hold at 1250 to 1300 until done.
- Mon Oct 25, 2021 9:34 am
- Forum: Techniques and Tools
- Topic: how to use this glass cutting tool?
- Replies: 5
- Views: 10316
Re: how to use this glass cutting tool?
Just a guess, but looks to me like one end is a glass cutter, used to score the glass, and the other end is a suction cup to keep the tool in place. Could be used for circle cutter or strip cutting or possibly both.
- Thu Oct 21, 2021 9:50 am
- Forum: Techniques and Tools
- Topic: Capped silver foil & fuming
- Replies: 8
- Views: 10301
Re: Capped silver foil & fuming
Is it just contamination of the shelf one has to worry about or can the kiln become contaminated such that it would damage future firings. I've kept a separate shelf for silver stain in the past. Is that sufficient for silver foil, too? Thank you. A separate shelf makes sense if you use a lot of si...
- Wed Oct 20, 2021 10:05 am
- Forum: Techniques and Tools
- Topic: Capped silver foil & fuming
- Replies: 8
- Views: 10301
Re: Capped silver foil & fuming
If you cap so that fumes can't get out, then you shouldn't have a problem. Shouldn't make a difference what you cap with.
- Sun Oct 17, 2021 7:17 pm
- Forum: Techniques and Tools
- Topic: Unknown Jen-Ken kiln controller code "Stnd": help?
- Replies: 1
- Views: 2938
Re: Unknown Jen-Ken kiln controller code "Stnd": help?
What brand controller? Made by Barton or Orton? 3 button or 12 key?
Have you tried unplugging kiln (not turning off) and then plugging back in?
You could also call Jen-Ken and ask. They're usually very helpful.
Have you tried unplugging kiln (not turning off) and then plugging back in?
You could also call Jen-Ken and ask. They're usually very helpful.
- Thu Oct 14, 2021 11:15 am
- Forum: Techniques and Tools
- Topic: Fractures appeared!
- Replies: 11
- Views: 9475
Re: Fractures appeared!
Over time, that usually happens. I have deliberately fused Bullseye and Spectrum S96 glass together and watched the piece fall apart over time. First, you see nothing, then a crack appears, then it spreads, and eventually the piece breaks. This can take years and years, or it can happen overnight, d...
- Wed Oct 13, 2021 10:41 pm
- Forum: Techniques and Tools
- Topic: Fractures appeared!
- Replies: 11
- Views: 9475
Re: Fractures appeared!
Why would Spectrum and Oceanside not be compatible? I assumed they were using all the same technology and formulas. Similar (not necessarily same) technology and formulas, but different manufacturing facilities, different countries, different levels of experience. It's really hard to make consisten...
- Wed Oct 13, 2021 3:29 pm
- Forum: Techniques and Tools
- Topic: Fractures appeared!
- Replies: 11
- Views: 9475
Re: Fractures appeared!
Is there a potential compatibility issue between Wissmach and Oceanside that anyone has heard about? Yes, there is. There's also potential incompatibility between Oceanside and the old Spectrum System 96. And with Youghigheny Y96. And with any other COE96 glass you can think of. There's more to com...
- Tue Oct 05, 2021 3:24 pm
- Forum: Techniques and Tools
- Topic: The screw on running pliers.
- Replies: 20
- Views: 84373
Re: The screw on running pliers.
The amount of pressure does not change until the stop is hit. Thus, the glass should break when the pliers are applied. The glass does start to break when the jaws clamp around the glass, but it doesn't break optimally. If you have no screw, then the jaws come into contact with the glass and contin...
- Tue Sep 14, 2021 11:55 am
- Forum: Techniques and Tools
- Topic: Duraboard as elevated second shelf?
- Replies: 4
- Views: 5558
Re: Duraboard as elevated second shelf?
Your board is probably small enough to be ok, but you may find that you're not happy with the results of the firing. The temperature at the top of the kiln will most likely be much much different than the temperature at the bottom of the kiln. You'll have to experiment to see how much different thin...
- Fri Sep 03, 2021 8:06 pm
- Forum: Techniques and Tools
- Topic: Silver Fuming
- Replies: 6
- Views: 8919
Re: Silver Fuming
Test me the results.jim burchett wrote:text tiles
- Fri Sep 03, 2021 6:40 pm
- Forum: Techniques and Tools
- Topic: The screw on running pliers.
- Replies: 20
- Views: 84373
Re: The screw on running pliers.
Looks like I have been doing it wrong for 20 years! What I thought I was told was to put the jaws on your glass then tighten the screw, then back off a quarter turn. I suppose it makes more sense to advance it a quarter turn but this has worked for me for all these years and therefore conclude that...