slumping small 3 and 3/4 inch dish

To slump this tack fused piece I used the following schedule:

300dph.......................................................1215 degrees..........................hold 15 mins
Full.............................................................900 degrees............................hold 1 hour
100 dph......................................................700 degrees.............................hold 1 min
off

Notice slight pulling on the left side.  There is a little unevenness around the edges.  In the next slump I have decreased the processing temp to 1210 degrees and I will hold at the processing temp for 30 mins instead of 15mins.  Lets see how this effects things.  Well this one split in half, what happened here I do not know.  I am going to watch Bullseye video on slumping again.

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.   

                                                      

Okay , trying slumping again.  This is a small mold 3 and 3/4 inches square.  I lay a square of one layer of 3mm clear glass govered with stringers and two slender pieces of red glass on the top of the mold and will use the following schedule:

300degrees,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,1180 degrees,,,,,,,,,,,,,,,,,,,,,,,,,,,,,hold 10 mins

Full......................................900 degrees....................hold 1 hour

100dph.................................700degrees....................hold 1 minute

Full.........................................70 degrees....................OFF

It is a small piece of glass.  Should not take too much to do what it has to do.