Old 01-27-2014, 05:02 PM #1
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Default 405nm Fluorescent Uranium Glass Tubing & Spheres

Scoring, Cutting, and Flame Polishing Borosilicate Glass Tubing

1) Method 1 - cutting glass tubing by scoring and applying sufficient leverage to snap it. Scoring can be accomplished with a small corner file, Dremel tool with a diamond wheel, a Glass Tubing Cutter, or your fiancée’s diamond engagement ring. This method will work well for small-diameter tubing and long lengths where sufficient leverage can be applied to flex the tube to the break at the scored point. This is not effective for cutting short sections of tubing.

2) Method 2 – score the tubing and heat with a hot wire. A sufficient current source is required to heat the wire quickly to red hot; however, providing uniform heat transfer from the wire to the glass can be problematic.

3) Method 3 – Score the tubing on a lathe and use a micro torch to sharply heat the score mark as it is rotating. This method works well for cutting 1" test-tube glass into a variety of lengths, as short as ¼".

4) Method 3A - Score the tubing on a lathe by using the corner edge of a long 1/8" square carbide blank. This will still make a perfect score around the tube, and the edge of the carbide blank will last a lot longer than if using the point.

5) Method 4 - Fill tubing with water to length required, freeze the water within the tubing and submerge into boiling water. A nice clean break (nor maybe not) should occur right where the edge of the ice was.

6) WTF method - Last but not friggin least by any means:




Scoring and Breaking Technique:
1.Use the edge of a steel file to score or notch the glass perpendicular to its length. A single score works best. If you saw back and forth, you're asking for a messy break. Also, a light score works better than a deep cut.

2.Put on eye protection and heavy gloves. If you don't have gloves, you can minimize a chance of being cut by wrapping the tubing in a towel.

3.Place your thumbs on either side of the notch and apply gentle pressure until the tubing snaps in two.

4.The ends of the tubing will be extremely sharp, so you'll need to fire polish them before using the tubing. Fire polish the tubing by holding the sharp ends of the glass in the flame of an alcohol lamp or gas burner. Turn the tubing so that it is heated evenly. Stop when the ends are smooth. Be careful that you don't leave the glass in the flame too long, which melts the tubing and may block the ends.




The following web site has loads of information and photos of various glasswork. Adams & Chittenden Scientific Glass, California - Video of cutting large-diameter (over 30cm!) glass tubing

Source acknowledgement for methods 1 thru 3A listed above: Cutting glass tubing on the lathe (16/11/10)

--------------------------------


Pen Host 405nm 400mW shining thru 4” 8mm Uranium Glass Tube



3 Watt UV LED illuminated 4” 8mm Uranium Glass Tubes




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Old 01-27-2014, 05:14 PM #2
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

Shipping international $39.50 :/

Seeing these deals, I wish I were in the US!

Nice find madmacmo
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Old 01-27-2014, 06:47 PM #3
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

glowing ecig mod? glowing glass focus adapters? "clear" laser host?
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Old 01-27-2014, 07:56 PM #4
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

How easy is this stuff to cut? I can cut flat glass but how the f would you cut a tube? Copper tube cutter with a different tip?????
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Old 01-27-2014, 08:33 PM #5
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

you just use a knife, duh
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Old 01-28-2014, 12:16 AM #6
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

Last I knew, This glass was used as an expansion buffer between
other glass material and metal electrodes when making glassware.
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Old 01-28-2014, 01:46 AM #7
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

So no ideas on cutting it to shorter lengths?
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Old 01-28-2014, 01:50 AM #8
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

Quote:
Originally Posted by Livinloud View Post
So no ideas on cutting it to shorter lengths?
Score and snap.
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Old 01-28-2014, 02:09 AM #9
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

Score and snap is scary! We used to cut round mosaic glass with a diamond blade wet saw.
Contact you local tile guy
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Old 01-28-2014, 02:10 AM #10
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

Score with what though. I know score and snap, that's how you do glass or tile but afaik they don't make a tube glass cutter. They make a metal tube cutter but would a cutter designed for copper be sharp enough to score glass yet not crush it?
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Old 01-28-2014, 02:14 AM #11
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

A slow cut on a wet saw would do it. The copper cutters are carbon steel. I don't think they would score it.
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Old 01-28-2014, 02:28 AM #12
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

Quote:
Originally Posted by Livinloud View Post
Score with what though. I know score and snap, that's how you do glass or tile but afaik they don't make a tube glass cutter. They make a metal tube cutter but would a cutter designed for copper be sharp enough to score glass yet not crush it?
I've used a metal tube cutter, just be gentle. Don't smash it against the roller bearings like you do with metal

Although, I'm not sure how well that would work with a thick tube. I've only done it with thin disposable test tubes to make them shorter, and I have crushed a few

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Old 01-28-2014, 03:23 AM #13
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

Maybe using a super hot wire?
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Old 01-29-2014, 12:16 AM #14
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Default Re: Uranium Glass Tubing - 405nm Fluorescent

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I had no idea that was a thing. Thanks.
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Old 02-03-2014, 12:14 AM #15
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Default Re: 405nm Fluorescent Uranium Glass Tubing & Spheres

Sweet. I expect Brucemir will snag the sphere
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Old 02-04-2014, 01:04 AM #16
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Default Re: 405nm Fluorescent Uranium Glass Tubing & Spheres

that second shot is sick. Makes for an awesome center piece on your table or something
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