I'm creating a series of layered blocks about the size of a fat bar of soap - can I fire them all at once by building a framework of dams? Or can I just put fiber paper or thinfire paper between them (or would they push the paper around)?
Use dams. Your dams might need extra weight on the tops to keep the glass from seeping under or pushing the dams outward. View the subscription video about Kiln Furniture
: https://videos.bullseyeglass.com/videos ... furniture/
Also, in reading the tip sheet about deep fusing, the instructions say to use clear irid around the sides and on the bottom to get a better release from the fiber paper. I don't want an irid surface, so I would use clear only, or nothing around the sides. If I *didn't* border the sides of the block, would the sides fuse sufficiently to be smooth (vs. still showing the layers)?
You can use uncoated clear glass. If any paper fibers do stick, you would need to coldwork them off. The edges will have the paper texture whether or not the glass is iridized. The danger of using no edge glass is that as the layers collapse when the air escapes, bits of fiber could possibly be caught between the edges of each layer. We hope that doesn't happen! l The perpendicular glass "liner" strips reduce the opportunities for fiber trapping.
Without it, the layers will be more apparent, which you might desire. See Jeffrey Sarmiento's work. http://www.bullseyeprojects.com/Artist- ... 61&ppage=6
If you click on any of the works, there are sometimes additional detail shots that reveal these layered edges.
I am assuming I would still need to cold work the sides and bottom regardless. I'd like to get a depth of about 1-3/4". Is that even achievable?
Thanks for your help!
Yes. I hope you have had a chance to view the video related to this discussion thread. Working Deep
Thanks for posting, and please let us know what you make!