Quote:
Originally Posted by LarryC
Sounds like your not getting it hot enough. Also, the evenness of the starting shape is critical to getting a good on center thin disk. When I start off my implosions I start with a 1.5" solid sphere that already has had a trip to the mold.
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So you gather and round all the glass that is going to be in the maria and flatten it at once? I'll have to try that approach again. I've gotten into the habit of softening the glass at the end of the rod, then flattening it so the edges squish out, reheat, and repeat until the maria is big enough and then reheat the whole thing to get rid of any marks before applying color. It seems just as likely to get off center when bringing a large molten gather to the marver and pushing down on it, and I wonder how you avoid having the glass ballooning out from the middle very thick? I guess that's where the paddling around the edge step comes in.