WarmGlass.com

The key to what's happening is that the first time you fire you are heating up a bunch of little pieces of glass. Some of them might be breaking down in the bottom of the pile and you wouldn't know it anyway. Thermal shock happens when one part of a piece of glass gets too hot relative to the rest o...

Most people start with 50/50 plaster and silica by weight. There are a million variations and alternatives from there. Check the old archives and search on plaster. I suggest the book "Pate de Verre and Kiln Casting of Glass" by Jim Kervin and Dan Fenton. It lays out all the basics and off...

If you put the dictionary on Wiki software everybody could edit it directly. It is up to the community to police the posts. Maybe I'm old-fashioned, but the thought of over a hundred people editing the same document is enough to make me shudder. Have you participated in this wiki thing before? I gu...

I know everybody else thinks it's a crazy idea but I'll try anyway. If you put the dictionary on Wiki software everybody could edit it directly. It is up to the community to police the posts. wiki.org/wiki.cgi?WhatIsWiki Look at the wikipedia for an example of wiki on a large scale. wikipedia.org ch

I put my inlet holes in the walls horizontally about an inch below the lid so that the cold incoming air isn't directed at hot glass.

ch

Along with Berts really interesting result is what I have seen when I fire on stainless versus mullite. Stainless fires hotter. I have to drop the temp at least ten degrees to get the same result as I do for my 3/4" mullite shelves. The metal is reflecting the IR more effectively, and contribu...

No. Art glass will not temper because it has bubbles in it and different colors heat and cool differently.

It can be laminated but that would be hard with a sink.

ch

Very nice all around.

Patty, I'm curious about the "circle edger polisher" you mention. Is this like a Somaca circle polisher? How thick can the glass be? How fast does it work? How much does one cost?

Thanks,

ch

Incredible! Great use of the decorative leaves to enhance the form of the bowl.

I hope you are selling these for big, big bucks.

Would you be so kind to give us your firing schedule?

ch

One major difference between the two kilns is the arrangement of the elements. The Skutt has all the elements in the lid and the Paragon has elements in the walls, (and maybe a few elements in the lid, I don't know.) So, if you are firing mostly flat or open faced stuff, the glass is much more expos...

It is hard to tell but it looks to me like the glass folds over the outside rim of the mold. This is probably why it cracked. Sometimes the glass can split when slumping if it is asked to stretch too much before it gets hot enough to stretch easily. Usually we just get the glass to bend without stre...

Yikes!

Is there clear over the irid to protect it?

ch

Oh Charlie - you misunderstood my little guys! I think it was wonderful of you to share all that. I only wish I could get through it without my pupils starting to spin and smoke spilling from my ears. It's not you, it's me, really. (I've always loved saying that) Jackie Don't worry Jackie, I didn't...

:shock: 8-[ :-s #-o [-X =; OH COM'ON!? I understand that this is a slightly advanced caster's technique. But things are dead over there right now and I think it might be useful over here for one or two fusers. What could be simpler -- volume times specific gravity equals weight. That's it. Soda lim...

Does anyone have a formula for how many oz. of glass = how many sq. " fused ( approx. 1/4" thick) ? For instance 28 oz. = ? I have tried the archives, but may be using the wrong search. Thanks from the mathematically challenged! :shock: Want a lesson in specific gravity? Here's the formul...

I just don't know how sand behaves as it dries out. I've never made a sand mold where I wet the sand first. In general slower drying is better. If I were building this mold I would use plaster/silica instead of sand. You could make a master model exactly the shape you want the glass to be, then flip...

The set rotating pads I have for angular grinder goes to 1800 (orange). -lauri If I understand you correctly you have a angular grinder, I assume like the one in the link below, that has a set of rotating pads that goes to 1800. Where does one get diamond pads to fit those in the US? Anyone knows? ...

If they are 3M they are on this page:

http://www.granquartz.com/hand.htm

ch

When I say re-usable I mean use re-usable several times without disturbing/removing from the kiln. Yes I agree this is not a "hard" mold but more of a crisp surface mold, however when using just sand (damp at first to form desired shape) from a thickness of 1"min to a max of 4" ...

Your question is confusing as sand cast molds are not hard -- they're just sand and about 20% dry plaster sitting in the bottom of the kiln. They can't crack since they are granular. They aren't wetted. The sand is smoothed over after every use and new impressions are made in the surface.

ch