Hi fire technique - WarmGlass.com

Hi fire technique

This is the main board for discussing general techniques, tools, and processes for fusing, slumping, and related kiln-forming activities.

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Luiza
Posts: 81
Joined: Sun Mar 09, 2003 4:50 pm
Location: Rio de Janeiro / Brazil

Hi fire technique

Postby Luiza » Tue Mar 11, 2003 8:06 pm

Can someone be so kind to give me some directions to learn about this Hi fire technique? I´ve never heard of it. Any link? Any book?
Thanks
Luiza

charlie
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Joined: Mon Mar 10, 2003 3:08 pm

Postby charlie » Tue Mar 11, 2003 8:56 pm

build some dams in the shape you want. fill with scrap, frit, stringers, etc. bake at 1600 for a couple of hours. anneal for a thick piece. remove.

you might want to line the dams and build on fiber paper to prevent sticking.

Luiza
Posts: 81
Joined: Sun Mar 09, 2003 4:50 pm
Location: Rio de Janeiro / Brazil

Postby Luiza » Tue Mar 11, 2003 9:05 pm

Thanks Charlie
As I use float, I imagine that I must use 1700 .
I cant´t wait to try. Need more kilns, so many new options... :lol: :lol:

Brian and Jenny Blanthorn
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Re: Hi fire technique

Postby Brian and Jenny Blanthorn » Wed Mar 12, 2003 6:03 am

Luiza wrote:Can someone be so kind to give me some directions to learn about this Hi fire technique? I´ve never heard of it. Any link? Any book?
Thanks
Luiza


One thing U gotta watch out 4 if lots glass is the glass pushing the sides out

I wedge 2 the sides of the kiln

But I always got a bit of fibre 4 expansion

Image
Image

Clifford Ross
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Postby Clifford Ross » Wed Mar 12, 2003 9:39 pm

Hello all- at the high temps y'all melt at , what do you use for separator? :?

Amy Schleif-Mohr
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Location: Milwaukee

Postby Amy Schleif-Mohr » Wed Mar 12, 2003 11:03 pm

Some people use kiln wash, some people use fiber paper. It's and experience thing and really depends on if you are using opals or catherdrals and if you have a sand blaster.

Amy

Amy on Salt Spring
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Location: British Columbia, Canada
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Postby Amy on Salt Spring » Thu Mar 13, 2003 1:48 am

Speaking of sandblasters--how much does a sandblaster setup cost--nothing fancy, just one capable of getting kiln wash off the back of things or maybe creating a matte finish? I know there are probably a lot of variables as far as cost is concered, but are we talking like $200 range or $800 range or $1500 range?
-Amy

Amy Schleif-Mohr
Posts: 280
Joined: Sun Mar 09, 2003 5:18 pm
Location: Milwaukee

Postby Amy Schleif-Mohr » Thu Mar 13, 2003 9:01 am

I got my set up in the $800 range. It's a cabinet, pressure pot, and foot switch.

Amy

Bert Weiss
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Location: Chatham NH
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Postby Bert Weiss » Thu Mar 13, 2003 9:31 am

Luiza wrote:Thanks Charlie
As I use float, I imagine that I must use 1700 .
I cant´t wait to try. Need more kilns, so many new options... :lol: :lol:


Luiza

Be aware that float glass does not have the flow properties that Bulleseye glass has. It needs at least 80 degrees more heat to soften than Bullseye and even then will not behave the same.

Bert

Bob
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Location: Salt Spring Island, British Columbia
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Postby Bob » Thu Mar 13, 2003 10:50 am

Amy on Salt Spring wrote:Speaking of sandblasters--how much does a sandblaster setup cost--nothing fancy, just one capable of getting kiln wash off the back of things or maybe creating a matte finish? I know there are probably a lot of variables as far as cost is concered, but are we talking like $200 range or $800 range or $1500 range?
-Amy


Hi Amy,

I got my sandblaster setup from House of Tools and Princess Auto. I imagine one of these stores is in Victoria (for sure in Vancouver).Compressor, cabinet (siphon feed), hoses, water trap came to under $1000Can. Works just fine. I can always add a pressure pot later if I need it .

Cheers

Bob

Amy on Salt Spring
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Postby Amy on Salt Spring » Thu Mar 13, 2003 1:13 pm

Bob wrote:
Hi Amy,

I got my sandblaster setup from House of Tools and Princess Auto. I imagine one of these stores is in Victoria (for sure in Vancouver).Compressor, cabinet (siphon feed), hoses, water trap came to under $1000Can. Works just fine. I can always add a pressure pot later if I need it .

Cheers

Bob


Thanks for the Canadian pricing. I'll look and see if either of those places are in Victoria (an enormously easier trip for us than going to Vancouver). Hmmm... compresser and hoses I recognize, "siphon feed", "water trap" and "pressure pot" are new terms for me. I'll go take a look at the archives.
-Amy

Bob
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Location: Salt Spring Island, British Columbia
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Postby Bob » Thu Mar 13, 2003 1:29 pm

Amy on Salt Spring wrote:
Bob wrote:
Hi Amy,

I got my sandblaster setup from House of Tools and Princess Auto. I imagine one of these stores is in Victoria (for sure in Vancouver).Compressor, cabinet (siphon feed), hoses, water trap came to under $1000Can. Works just fine. I can always add a pressure pot later if I need it .

Cheers

Bob


Thanks for the Canadian pricing. I'll look and see if either of those places are in Victoria (an enormously easier trip for us than going to Vancouver). Hmmm... compresser and hoses I recognize, "siphon feed", "water trap" and "pressure pot" are new terms for me. I'll go take a look at the archives.
-Amy


Hi Amy,

Water trap is a small device that allows water in the pressurized air to condense before it gets into your cabinet (and possibly make the abrasive damp). I put mine on the side of the cabinet ... immediately before air goes into the cabinet. Siphon feed is the cheapest type of system. The "gun" has an air hose in the handle, and a short hose attached to the barrel of the gun. The end of the hose is buried in the abrasive. When pressurized air passes thropugh the gun it draws abrasive up the tube .

Pressure pots are a separate barrel shaped container that mixes abrasive with the pressurized air before if enters the blast cabinet. It is more efficient than a siphon system.

There that is all I know about sand blasters. The GlassStar web site has a great introduction to the components of a system.

Cheers

Bob

Cheryl
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Location: Tallahassee FL
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those blasted guns!

Postby Cheryl » Thu Mar 13, 2003 2:37 pm

Are there any alternatives to the pistol-grip guns that you have to squeeze the trigger? Those just make my hands ACHE after about 30 seconds. I spent several hours sand-blasting yesterday and I swear, I'm about to file for disability!!

charlie
Posts: 961
Joined: Mon Mar 10, 2003 3:08 pm

Re: those blasted guns!

Postby charlie » Thu Mar 13, 2003 2:39 pm

Cheryl wrote:Are there any alternatives to the pistol-grip guns that you have to squeeze the trigger? Those just make my hands ACHE after about 30 seconds. I spent several hours sand-blasting yesterday and I swear, I'm about to file for disability!!


footswitch

i have one on my grinder, and it's saved having to replace the switch a couple times over.


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