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Boro Room -- For Boro-related tips, techniques, and questions. |
2017-12-22, 8:08pm
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Junior Member
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Join Date: Sep 28, 2017
Posts: 6
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How thin can I go on a hollow boro bead?
Hi,
I want to make a very thin walled bead. I'm planning on using a mandrel to wrap the glass around it- like making a soft glass bead. Is there a lower limit to how thin the bead wall can be?
Thanks
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2017-12-24, 8:35am
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just another glass addict
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Join Date: Feb 06, 2006
Location: Santa Cruz
Posts: 396
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The glass walls still needs to be at least double the thickness of the mandrel but it may be easier with boro tubing and no mandrel at all.
ETA: You can make the walls much thinner without the mandrel sucking out heat and you won't need separator.
__________________
Polly
"Confidence, like art, never comes from having all the answers; it comes from being open to all the questions."
-Earl Gray Stevens-
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2018-01-01, 1:24pm
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Junior Member
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Join Date: Sep 28, 2017
Posts: 6
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Thanks!
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2018-01-05, 3:43pm
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Senior Member
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Join Date: Mar 07, 2011
Location: Northern California
Posts: 2,023
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Start with tubing and you won't need a mandrel at all.
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2018-03-07, 5:53am
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Senior Member
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Join Date: Sep 04, 2005
Location: Sterling, VA
Posts: 442
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You can also make a hollow bead on the end of a steel hollow mandrel. No need for bead release - just build a blob of glass on the end and blow. Pop a hole at the end and clean up, hold the bead with something (I use a pair of forceps) and then heat the steel mandrel at the base of the build and it will pull right off.
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2018-03-09, 9:28am
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Dix Harrison
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Join Date: Mar 31, 2009
Location: KCKS - But my heart is in Scotland
Posts: 526
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Wait.
Double the thickness of the mandrel?
Maybe that applies for a regular boro bead wrapped on a mandrel.
However, I think that is way too thick for a hollow, BLOWN boro bead.
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2018-03-09, 10:01am
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just another glass addict
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Join Date: Feb 06, 2006
Location: Santa Cruz
Posts: 396
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OOps you're right Dix...I meant as thick as the mandrel
__________________
Polly
"Confidence, like art, never comes from having all the answers; it comes from being open to all the questions."
-Earl Gray Stevens-
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