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Old 31st Aug 2021, 8:45 pm   #20
Joe_Lorenz
Hexode
 
Join Date: Dec 2019
Location: Hohenroda, Eastern Hesse, Germany
Posts: 453
Default Re: Coughtrie light, stuck glass!

Just another idea. If I remember some physics correctly: Metal has got a bigger shrinking coefficient when cold applied than glass.

That means, if you put the whole thing in the deep freezer, say at -20°C, I would expect the metal shrink more than the glass will. This should result in a more loose fit than now. Right?

But, please keep in mind: This will have a chance only if the glass comes over the metal.

Otherwise (glass thread goes in the metal) I should recommend warming up the whole unit. Again: Metal will expand more than glass, so the glass should come free.

Anyway, applying cold or heat should be done pretty slowly, just to avoid building up too much tension within the glass.

Regards, Joe
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