Friday, April 4, 2014

My new computer and glass fusion

Two new pieces in the kiln, about 3 and 3/4 inch square, each with one layer of 2mm clear glass, one with one layer of 3mm clear glass covered with a few pieces of decorative glass and the other covered with one layer of 2mm white glass and a perfused art glass made a while ago by me.  I looked up fusing schedules for small pieces and I put together this one.  It is different from the fusing schedule I used with the snowflake pieces, but for those I fused together only two layers of glass equaling 5mm of glass.  So this firing schedule goes as follows:

400dph.........................................1150 degrees......................................hold 20 mins
full................................................1470 degrees......................................hold 12 mins.
full.................................................900 degrees........................................hold 20 mins
150 dph..........................................800 degrees.......................................hold 2 mins.
Off

The schedule I used for the two small snowflake items was as follows.  That one worked well.  Lets see how this one works.

400dph.......................................1250 degrees....................................Hold 30 min.
600dph.......................................1420 degrees....................................Hold 10 min.
FULL............................................900 degrees......................................Hold 60 min.
100 dph........................................300 degrees....................................off


I took one of the two pieces.  The whole idea is to determine whether one layer of glass with stuff on top in this 3 and 3/4 inch square format looks better than 2 layers of glass with stuff on top, or whether it looks equally good.  For this project I want to work on slumping.  I like the look of stringers on top of clear glass, alongside two thicker strips of glass and then slumped.  The problem was that I used only layer of of 3mm clear glass and the edges pulled a little where I had placed the bigger strips of red glass.  Actually they only pulled after slumping.   So to solve this I have to lower the slump temperature or hold a little longer.  Thats how I solved it before with the snowflake square, or put another piece of glass underneath it.  So when I take this current piece of glass out of the kiln I will see how it work with 2 layers of glass and stuff on top.   

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