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c/glassblowers•margaretk89margaretk89•2mo agoProlific Poster

PSA: The difference in my pieces after switching to a new annealing schedule

I was having a lot of issues with stress cracks in my thicker sculptural work, maybe one out of every three pieces. About six months ago, I started using a slower ramp down schedule I found online, adding an extra 50 degrees to the hold and doubling the cool down time. The change was huge. I haven't had a single piece crack in the kiln since I made the switch. Has anyone else tweaked their annealing cycle and seen a big improvement?
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3 Comments
margaret_flores17
margaret_flores172mo agoTop Commenter
Honestly, my friend had the same exact problem with her big paperweight things. She was so frustrated, ready to quit. She found some schedule that added a whole extra hour to the cool down step, like super slow. Tbh, she thought it was overkill, but she tried it. Now her stuff comes out perfect every single time.
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lane.drew
lane.drew2mo ago
That's awesome it worked for you, but just a heads up, adding 50 degrees to the hold temp is actually a pretty big jump. Most schedules I've seen only tweak the time, not the temperature itself.
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derek_burns87
See this everywhere, people skipping steps.
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