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Old 10-12-2012, 11:58 AM #1
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Default broken electrode

Hi All,

One of the electrodes broke off my laser tube. Can this be repaired? It looks like it may have chipped a little of the glass too. The break is flush with the tube.

I was thinking about trying to solder another electrode on there but I'm not sure if the heat of the solder iron would damage the glass tube

Please advise...before I do something stupid


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Old 10-12-2012, 12:01 PM #2
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Default Re: broken electrode

What laser tube? CO2, HeNe, ArgonIon? What electrode?

Gonna need more details and pics, but do NOT try solder to anything in contact with glass, you'll most likely cause more damage.
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Old 10-12-2012, 12:23 PM #3
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Default Re: broken electrode

It's a 40Watt CO2 laser tube and its the Cathode that broke.

How do you post pics? Never done it before
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Old 10-12-2012, 12:50 PM #4
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Default Re: broken electrode

You can upload your photos to a photo storage site
like PhotoBucket then use the [ ] icon on the top of
the Quick Reply window and enter the URL of your
photo on that site.


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Last edited by lasersbee; 10-12-2012 at 12:50 PM.
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Old 10-12-2012, 01:10 PM #5
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Default Re: broken electrode

Thanks Jerry,

I may have to do that from home. At work i have to check with my IS dept. before I can sign up for photobucket or anything like that...pain in the a$$

Will post pix soon.

John
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Old 10-12-2012, 02:47 PM #6
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Default Re: broken electrode

You can also upload/attach it on here to your reply. The file size allowances are pretty generous, but the image must be it below 800x600 in resolution (as they should ALL be anyway).
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Old 10-12-2012, 03:22 PM #7
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Default Re: broken electrode

As long as the electrode isn't recessed, you can wrap a wire around the tube and/or clamp it to the electrode with a rubber band or something like that. It's low current, so the electrical contact doesn't need to be super.
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