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Tips, Techniques, and Questions -- Technical questions or tips |
2009-02-22, 8:55pm
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I need more boro stuff
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Join Date: May 10, 2007
Location: Sydney, Australia
Posts: 1,672
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Crack :(
I made Corina's Quark. This is the first time I made it.
It's approx 1" tall x 1" dia. Mum really like the bead, but it cracked in 4 places 2 weeks after and the cracks are getting bigger and longer.
Core is Vetro clear, factory made and my own murrini, my own twisties, handpulled gold aventurines. All encased in new reformulated soft Laucha.
Garaging at 960 (This is the first bead that I made on that day so I garaged it at least more than 4 hours), annealing at 970 for 1.50 hours, ramp down at 60 to 680, hold for 1 hour, ramp down 300 to 400. Shut down the kiln. I have brick kiln.
None of other beads crack on that day.
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Yunita
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2009-02-22, 8:59pm
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Formerly FishBulb
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Join Date: Dec 05, 2008
Location: Pony Flower Princess Land
Posts: 2,772
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Darn about the crack!
I can offer no help, but I just wanted to say it's a LOVELY bead and I do hope you get this figured out! I'd love to see more of these.
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In Soviet Russia, Google searches you.
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2009-02-22, 9:00pm
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Life is change. Love it
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Join Date: Oct 10, 2005
Location: Ontario Canada
Posts: 5,566
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I have never had any luck with Lauscha clear. Did you have silver glass in it?
All I can suggest is that next time you put it in the kiln really glowing.
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cRlyn, cause Traci says so
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2009-02-22, 10:14pm
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Unmedicated since '62
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Join Date: Jan 18, 2009
Location: Hunter Valley, Australia
Posts: 5,907
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what a shame! its gorgeous - you can't stuff up cos you're my encasing guru!
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Deb
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To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. - download, get organised, enjoy
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2009-02-22, 10:34pm
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I need more boro stuff
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Join Date: May 10, 2007
Location: Sydney, Australia
Posts: 1,672
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Quote:
Originally Posted by Carolyn M
I have never had any luck with Lauscha clear. Did you have silver glass in it?
All I can suggest is that next time you put it in the kiln really glowing.
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Nope, no silver glass on this bead. None of other beads that encased in laucha cracks though.
LOL Deb, I have a very good encasing teacher. Don't miss out Jan C's class if someone asks her to teach.
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Yunita
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2009-02-22, 11:39pm
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Senior Member
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Join Date: Jun 11, 2005
Location: SUNNY FLORIDA~West Coast!
Posts: 9,423
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Oooh what a pretty bead Yunita!
Maybe next time try a Lauscha core instead of Vetrofond. Or all vetrofond clear.
Good Luck!
Paula
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2009-02-23, 7:20am
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Senior Member
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Join Date: Jun 27, 2005
Location: Yarmouth, Maine...home of the Clamfest
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Doesn't lauscha prefer to anneal @ 980? Isn't that what CarolAnne anneals at? Or am I remembering that wrong?
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new purple cricket @ home! minicc @ playing with fire in rockland! Sue & Nikki fighting over who gets to anneal the wonkies To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
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2009-02-23, 9:27am
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Mary Lockwood
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Join Date: Jun 21, 2005
Location: Boonies
Posts: 5,831
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Lauscha clear is gorgeous, isn't it? So sparkly and clean...but she will stab you in the back if you don't watch her..the fickle bleep!
I quit using lauscha clear years ago, but if you are seriously attached and won't switch, put it in the kiln a bit hotter (still a low glow to it) and garage/anneal a bit higher--like 980.
~~Mary
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2009-02-23, 10:41am
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Senior Member
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Yep Luna and Moth. Carol Anne suggests 980. Her schedule is around here somewhere.
Paula
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2009-02-23, 1:19pm
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I need more boro stuff
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Join Date: May 10, 2007
Location: Sydney, Australia
Posts: 1,672
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Thanks, maybe I should bump it up to 980.
But only this bead that cracked.
And I used vetro clear as core before and they survived.
I'm wondering if the aventurine that causing it? I just noticed that all the cracks are around the aventurine stringers.
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Yunita
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2009-02-23, 1:51pm
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Senior Member
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That could be. I was going to suggest that maybe one color was off. So many are and we are never told!
Paula
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