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Thread: took 15-1/2 years, but my LS900's tube finally called it quits

  1. #1

    took 15-1/2 years, but my LS900's tube finally called it quits

    Was running some Cermarked SS Tuesday night when the power seemed drop, the beam spot just looked too tiny. So yesterday morning I had to cut and engrave a couple of 5-3/4" gauge dial faces out of 1/32" wht/black Rowmark. It cut the dials okay, but wouldn't engrave thru the white at my normal settings. Uh oh. I had to lower the speed from 80% to 30% just to finish the engraving. 1/8" Rowmark has always cut cleanly in 2 passes at 100% power and 7 speed. Yesterday 12 passes wouldn't make it all the way thru...

    I checked all the lenses and mirrors, beam alignment, all same as usual. I pulled the shutter assembly off and made sure no bug got fried to the #1 mirror or anything else was obstructing the beam. I pulled the lenses from the collimator, no problems. Put everything back together, re-aligned the red and main beam paths, no change in power

    SO, I sent Evergreen Laser an email last night, and will be sending them my tube for a rebuild. I'm not sure if it just needs a charge or if I lost a capacitor. Pretty sure it's NOT a capacitor, as I'm experiencing MUCH less than 50% power now. I've heard many great things about Evergreen, and Sheldrake recommends them, and that's good enough for me

    Progress reports to follow--
    ========================================
    ELEVEN - rotary cutter tool machines
    FOUR - CO2 lasers
    THREE- make that FOUR now - fiber lasers
    ONE - vinyl cutter
    CASmate, Corel, Gravostyle


  2. #2
    Right after typing the above on the office computer, I came downstairs and immediately found an e-mail from Evergreen

    I'll be shipping it out today-- once I find a proper box
    ========================================
    ELEVEN - rotary cutter tool machines
    FOUR - CO2 lasers
    THREE- make that FOUR now - fiber lasers
    ONE - vinyl cutter
    CASmate, Corel, Gravostyle


  3. #3
    I sent out my ULS 50 watt laser for recharge to them last Friday... hope it lasts longer this time.
    Brian Lamb
    Lamb Tool Works, Custom tools for woodworkers
    Equipment: Felder KF700 and AD741, Milltronics CNC Mill, Universal Laser X-600

  4. #4
    took 15-1/2 years, but my LS900's tube finally called it quits

    That's gotta be a record. I have not heard of a laser tube lasting that long!

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