digid wrote:
Once you score it, but it under water before trying to snap it off. I
have had good luck with very thin glass under water.
In article ,
Glass wrote:
Glass tubing cutter. American Scientific and Surplus
Item #91921 GLASS TUBE CUTTER $7.95 / EACH
http://sciplus.com/singleItem.cfm?te...LogFrom=Search
Good luck.
On Tue, 22 Jun 2004 10:25:56 GMT, (Ken
Sterling) wrote:
Gang,
Got a piece of glass tubing (similar to Pyrex) which is .490 ID,
625OD and I need to cut a piece about 11/16 long. File won't touch
it, glass cutter won't do it, have been trying to score the outside
with a thin "cutoff wheel", which scores it, but the stuff won't "snap
off" as expected... just shatters, even past the score mark. Am I
going to have to cut completely through with the cutoff wheel to do
this?
Ken.
A good suggestion, and an old glassworkers trick. Glassworkers usually
wet the knick before tring to 'snap' a scored glass part. This somehow
allows the break to progess easier. I've heard it stated as a 'surface
tension' issue, with glass being a supercooled liquid. Whatever. It does
work. Water, or more usually a drop of saliva, does the trick.
Dan Mitchell
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