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Tips, Techniques, and Questions -- Technical questions or tips

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  #1  
Old 2016-12-18, 8:26pm
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Iwantonetoo Iwantonetoo is offline
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Location: Chicagoland and/or Southwest Missouri
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Default Glaskolben

Why do I struggle so?

I have taken 1 class with them it was taught on a hothead. She told us we had one chance to blow, that we couldn't reheat them and try again. Mine all ended up looking like warped pears. I tried at home with my old hothead and gave up.

Until last year when they were on SALE. so I bought a whole CASE. as well as a variety of frit to use with them. (I love a good sale) I watched a few videos, and Shawnettes was the best. I tried with my bobcat; that didn't go so well either. I was assuming it was because I couldn't get a bushy enough flame. (I'm using natural gas and an Oxycon)

Now I'm wondering if I try my National with tanked propane and tanked oxy would I do better? or tanked both on my bobcat? Or am I just too impatient?

I signed up for another class this year (different instructor, and taught on a minor) but not enough people signed up so it was cancelled.
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Old 2016-12-18, 9:11pm
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Mina Mina is offline
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mine ended up pair shaped too. I think it is because I did not heat evenly, including the top 'shoulder' where it starts to narrow down.
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Old 2016-12-21, 6:46am
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It really is all about getting an even heat up and down the globe whether it be on a hothead and oxy/propane torch. I would recommend watching the video on Delphi Glass by Val Oswalt-De Waard. You can see just what the glass should look like before she starts to blow. She "almost" looses control which is a good indication the glass is ready to blow.
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Old 2016-12-21, 3:42pm
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I, too, am Glaskolben challenged. I gave up on them in a fit of rage...lol...I still have a box of them....maybe I'll give it another try.
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