Hmmmm…..let’s see.

#13284
katkramer
Participant

(For those who are shy about converting C into F, this looks like a standard full-fuse schedule, going up to 1479°F, with a bubble squeeze at 1250°F.  Standard stuff.)

First thing I noticed is that you’re firing pendants and plates in the same firing.  I would actually do two different firings for the two, placing the pendants in the middle of the shelf instead of on the edges.  You didn’t mention the size of the dish blanks, but I would guess 8″ or so?  Are they single or double thickness?   This will make a difference.  If you’re running a full fuse with a single thickness, the edges will pull up.  I’m guessing the dichro pendants were double thickness.

I looked up the Hobby Fuser, and noticed that it only has elements in the lid.  My kilns either have elements in the side or both in the lid and sides.  I wonder if that might be contributing to the issue…perhaps non-even heating?  I have a small Paragon SC2 that has softer fiber walls, and it fires pendants unevenly unless they’re in the middle of the kiln.  Your Hobby Fuser has kiln brick in the bottom, but I don’t see a description of the sides and top.  I’ve found that the Paragon has hotter spots in the kiln…but in time I learned how to work around that.  I can fire pendants in the middle, or can fire longer.

My first suggestion would be to fire a little hotter, or hold a little longer, but with dichro you run the risk of degrading the dichro if it’s too hot.  I won’t fire dichro over about 800°C…815°C in my opinion is too hot.  Your hold seems like it’s on the longer side, but I would try to address the issue by increasing the hold and holding the temperature.

I tend to fire things that are similar together…so pendants ONLY together, and LIKE platters together.  For example, if I were doing a strip bowl that needs a full fuse with a long hold (10mm strips of glass stood on end next to each other), I wouldn’t fire that project with a double-thickness full-fuse plate.  That way you can also learn your kiln.  So if you fire pendants together and you’re having an issue, you’ll learn to fire the pendants longer.  If you’re having a problem with pendants and plates, it’s harder to figure out what adjustments can be made to address those issues.

Congratulations on your new kiln, and welcome to the “gentle art” of glass fusing!  You’re in good company!

Kat Kramer
http://www.katkramer.com

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