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Old 09-17-2018, 03:25 PM
Art Freas Art Freas is offline
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Hot Popping and Fire Polishing

Do folks reanneal their work after hot popping? Is there a thickness at which you reanneal. Also any recommendations on best tool to score the piece before hand?

Thanks much.

Art
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Old 09-17-2018, 03:56 PM
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I use a very good quality diamond scribe I got from Wale. Having viewed flame polished work in a polarizing screen I think it needs to be reannealed. You can see the strain and I pop off work that's about 1/16th- 1/8th inch and it shows. It only takes about 20 minutes at annealing range.

A fine jeweler's torch is an awfully nice tool for the job.The entire thing must be three inches long at most.
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Old 09-17-2018, 04:24 PM
Eben Horton Eben Horton is offline
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I did not re anneal som cups that I hot popped and about a year later, the person who bought them came in with a perfect 1 ring that popped off the top of one of the cups. I will always re anneal now.

A national premix hand torch is great for hot popping with the small single port head. Then after you have popped them all and ground them flush, put on a crossfire extension with 2 fishtail heads and you will fire polish them in no time.
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Old 09-17-2018, 06:20 PM
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The only thing I've hot popped and fire polished is shot glasses, and always reanneal them. It does sound like I could have got away with a little less time then I had in the annealer.

Question - Did you guys create a jig for the score? I just made one out of some wood scraps. Then, we use an old turntable for the fire polish. Cheap but effective.
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Old 09-17-2018, 08:48 PM
Art Freas Art Freas is offline
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We are looking at it as an option for a large order. Two folks have rigs that they will lend us to pop but don't have a rig to score. We don't have a jig for scoring. I am looking for a reliable rig that will score at the same place, the order that we are doing is in the hundreds.
Art
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Old 09-17-2018, 09:12 PM
Eben Horton Eben Horton is offline
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Quote:
Originally Posted by Art Freas View Post
We are looking at it as an option for a large order. Two folks have rigs that they will lend us to pop but don't have a rig to score. We don't have a jig for scoring. I am looking for a reliable rig that will score at the same place, the order that we are doing is in the hundreds.
Art
Buy an aluminum banding wheel from a pottery supply place and then weld up a tube that slides inside a tube with a pair of vice grips welded to the top tube. Drill a hole in the outer tube and weld a nut over the hole to make it adjustable.
Make it strong and sturdy..the diamond scribe obviously is held by the vice grips. .I you are clever you can figure out how to use that same stand with vice grips to hold your fire polishing torch.
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Old 09-17-2018, 10:28 PM
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If you're making 100's, I remember I was running about a 10% crash and burn rate with my shot glasses. It could be me, my mind went numb after a while.
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Old 09-19-2018, 08:44 AM
Rich Arentzen Rich Arentzen is offline
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Eben, where would I find "a crossfire extension with 2 fishtail heads?"
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Old 09-19-2018, 09:50 AM
Eben Horton Eben Horton is offline
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Eben, where would I find "a crossfire extension with 2 fishtail heads?"
Wale apparatus
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Old 09-19-2018, 03:38 PM
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I've never done this - I want to try it. I went and looked, and if I'm looking at the right thing - How many ports on the fishtail would I want for shot glasses? They have 4,9, and 15...4?
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Last edited by Rich Simmons; 09-19-2018 at 04:04 PM.
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Old 09-19-2018, 04:58 PM
Eben Horton Eben Horton is offline
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Id go with 14 on each side.
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Old 09-26-2018, 02:26 PM
Rich Arentzen Rich Arentzen is offline
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Does the glass color when using a non surface mix torch?
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Old 09-26-2018, 04:03 PM
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selenium can discolor glass using a flame polish, particularly if you expose it too long. I'm not aware of Erbium having that effect. What batch are you using?
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