How can I control spread?

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Lisa Allen
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Joined: Sun Mar 09, 2003 3:23 pm
Location: Memphis, TN
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How can I control spread?

Post by Lisa Allen »

I have a project that I am working on that needs to be 3" wide. The top, unfired part is only 2 and 1/4" wide and 1/4" thick. So, how much base glass needs to go under it to get it to spread to at least 3" wide? It doesn't matter if it goes over 3" wide, it just needs to be at least that.

Thanks, Lisa
Lisa Allen
http://www.lisa-allen.com
Today's mighty oak is just yesterday's nut that held its ground.
charlie
Posts: 961
Joined: Mon Mar 10, 2003 3:08 pm

Post by charlie »

v1 = v2

v1 = 3" ** 2 * .25"
v2 = 2.25 ** 2 * .25 + (x ** 2 * .125)

solve for x
Lisa Allen
Posts: 212
Joined: Sun Mar 09, 2003 3:23 pm
Location: Memphis, TN
Contact:

Post by Lisa Allen »

charlie wrote:v1 = v2

v1 = 3" ** 2 * .25"
v2 = 2.25 ** 2 * .25 + (x ** 2 * .125)

solve for x
Hi Charlie-

I am not sure if I speak your language here. Are you using the double asterisk to denote, to the power of? And what are you solving for with "x", the number of layers of glass or the actual thickness needed to achieve the spread that I am wanting?

Or, you can just tell me how many layers of clear that I need to accomplish what I asked......

Lisa
Lisa Allen
http://www.lisa-allen.com
Today's mighty oak is just yesterday's nut that held its ground.
Carol B
Posts: 36
Joined: Wed Aug 27, 2003 2:15 pm
Location: Olympia Washington

Re: How can I control spread?

Post by Carol B »

Lisa Allen wrote:I have a project that I am working on that needs to be 3" wide. The top, unfired part is only 2 and 1/4" wide and 1/4" thick. So, how much base glass needs to go under it to get it to spread to at least 3" wide? It doesn't matter if it goes over 3" wide, it just needs to be at least that.

Thanks, Lisa
Hi Lisa,

I know there are mathmatical formulas you could use. But 2 and 1/4 inches is not that big. Why not run some tests with scrap? I would be interested to hear the results.

Carol
Mira
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Post by Mira »

Re: controlling spread:

I've heard diet and excerise works, but I've never been successful . . .
Lisa Allen
Posts: 212
Joined: Sun Mar 09, 2003 3:23 pm
Location: Memphis, TN
Contact:

Re: How can I control spread?

Post by Lisa Allen »

CarolB wrote:
Lisa Allen wrote:I have a project that I am working on that needs to be 3" wide. The top, unfired part is only 2 and 1/4" wide and 1/4" thick. So, how much base glass needs to go under it to get it to spread to at least 3" wide? It doesn't matter if it goes over 3" wide, it just needs to be at least that.

Thanks, Lisa
Hi Lisa,

I know there are mathmatical formulas you could use. But 2 and 1/4 inches is not that big. Why not run some tests with scrap? I would be interested to hear the results.

Carol
Oh, Carol, that would be way too smart and patient for me......haha. So, not being able to decipher Charlie's equation and having recieved a call from Tony to help with the dilemma, I threw the piece in the kiln tonight and will just see what happens. If it doesn't work, I will consider it a test with scraps..... :P
Lisa Allen
http://www.lisa-allen.com
Today's mighty oak is just yesterday's nut that held its ground.
charlie
Posts: 961
Joined: Mon Mar 10, 2003 3:08 pm

Post by charlie »

Lisa Allen wrote:
charlie wrote:v1 = v2

v1 = 3" ** 2 * .25"
v2 = 2.25 ** 2 * .25 + (x ** 2 * .125)

solve for x
Hi Charlie-

I am not sure if I speak your language here. Are you using the double asterisk to denote, to the power of? And what are you solving for with "x", the number of layers of glass or the actual thickness needed to achieve the spread that I am wanting?

Or, you can just tell me how many layers of clear that I need to accomplish what I asked......

Lisa
sorry, was running out the door to pack my truck full of boxes.

** means squared. solved, x would be the side (in inches) of the square of glass that would have to be added for 1/8" glass.
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