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Old 2012-09-20, 5:04pm
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wickedglass wickedglass is offline
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Join Date: Feb 18, 2007
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Ah, 20 to 30 od ... the 20 you should be able to pull apart, for 30 i can recommend a shock and score approach. This means you score about 1.5cm line into the glass (some people think scoring all the way around a tube is necessary, but its definitely not), wet the line a little, heat up the end of a rod and dab it onto the score mark. With practice you will get a nice even crack off all the way around the tube.
Do yourself a favour, dont do any of the above with Chinese glass, its pretty dodgy stuff.
Your torch should be fine for polishing those sorts of diameters.
Also, you're looking for a bladed tool, the scribe may work, but you will have a bugger of a time trying to score a straight line with it ...
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by Miema on LPG and oxy bottles and a GTT Mirage.
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