Crucible cast - Take 2

After isolating a temperature and aperture through testing, the actual project firings have begun.  The goal is to create a slab of glass that can be used for a future sculpture collaboration project as well as a large flat disc that can be formed into some type of lighting piece.

The kiln that I'm using for this project is a side fire Skutt, so I'm going to do two crucible melts at the same time, stacked with shelves.  The bottom of the kiln is lower in temperature than the top, so I'll load the thin disc on the bottom and the thicker slab on the top. 

Here is the large saucer kilnwashed and loaded with supports and a pot of glass.  The center of the glass is large chunk tempered, the blue frit is trickled in around the edge.

 

After firing:

And the final product:

 

The top shelf will be loaded with the slab set up.  I was trying for streaks of blue through a clear base, so I used a square pot with the side broken out and loaded the clear glass in the center with turquoise frit down both sides.

 

  

After firing:

 

The final result:

 

Conclusion:

The slab is successful and can be taken to the next step of the process.  The glass for the blue disc had some impurities in it that I missed, which came back to haunt me.  Some of the disc can probably be used, but a new round of firings are in order, perhaps with different colors.