I am cutting up recycled glass, and fusing blanks. I then put the blank into a small bowl mold. Sometimes the bowl comes out a bit crooked. (One side higher than the other).
Any suggestions to fix this?
Keeping Blank Straight In Mold
Moderator: Tony Smith
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Re: Keeping Blank Straight In Mold
if you are firing multiple molds on a shelf,slow down.
artist, owner of wanchese art studio, marine finisher
Re: Keeping Blank Straight In Mold
Thanks, I was kinda wondering if that would help.rosanna gusler wrote:if you are firing multiple molds on a shelf,slow down.
Here is my schedule:
600/1000/10 (250/1000/10 maybe?)
250/1295/10
Full/1325/5 (I think I can eliminate this, as the slump seems to be done at 1295)
Full/1020/120
Off
What would you change?
Re: Keeping Blank Straight In Mold
The upramp is where things go cattywampus, so slowing things down will help, yes. Also, I find it helps to either make the bowl blank square, larger than the mold opening and rest it above the mold on kiln furniture (so that you simply cut off the unwanted glass) OR to make the blank a wee bit smaller, so that it fits inside of, not on top of, the mold. And to make sure the bowl and blank are dead-level.
The other thing to worry about is where the bowl is in relation to the elements. If one side of the bowl is closer than another, that side will soften and start down first. The opposite side won't quite catch up. Slowing down quite a bit helps that. In extreme cases, you can baffle the elements (i.e., put something insulating, like a firebrick, between the elements and the mold), but you have to watch insulating too much and causing the problem in the other direction. Most of the time, I don't think it's necessary.
The other thing to worry about is where the bowl is in relation to the elements. If one side of the bowl is closer than another, that side will soften and start down first. The opposite side won't quite catch up. Slowing down quite a bit helps that. In extreme cases, you can baffle the elements (i.e., put something insulating, like a firebrick, between the elements and the mold), but you have to watch insulating too much and causing the problem in the other direction. Most of the time, I don't think it's necessary.
Cynthia Morgan
Marketeer, Webbist, Glassist
http://www.morganica.com/bloggery
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"I wrote, therefore I was." (me)
Marketeer, Webbist, Glassist
http://www.morganica.com/bloggery
http://www.cynthiamorgan.com
"I wrote, therefore I was." (me)
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Re: Keeping Blank Straight In Mold
Slow down......solves so many problems. In slumping low and slow....
Laurie Spray
New website!! Http://bonnydoonfusedglasstools.com
Maker of stainless steel rings,pattern bar formers, pot melt pots, and Bottomless Molds
glass: http://lauriespray.blogspot.com
New website!! Http://bonnydoonfusedglasstools.com
Maker of stainless steel rings,pattern bar formers, pot melt pots, and Bottomless Molds
glass: http://lauriespray.blogspot.com
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Re: Keeping Blank Straight In Mold
"Speed comes from the Devil" :>)
Jim
Jim
Laurie Spray wrote:Slow down......solves so many problems. In slumping low and slow....