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Thread: Post your interesting eBay finds...

  1. #1731
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    Quote Originally Posted by absolom7691 View Post
    I wonder how similar to GM-20s these are. For $50ea, I think I am going to snag a few:

    http://www.ebay.com/itm/Shutter-Mirr...item33a515fa70
    They look like the clone One stop laser once sold.. ( the brand name escapes me at the moment )
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  2. #1732
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    " 15 characters"
    Last edited by Laser Wizardry; 11-13-2015 at 12:50.

  3. #1733
    mixedgas's Avatar
    mixedgas is offline Creaky Old Award Winning Bastard Technologist
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    Steve had a shot at nine or ten used machines with 21 actuators in them, more then I could afford to buy from my Ohio vendor. . Bob was the go-to guy for cash. Then Bob started buying machines in Florida.
    Bob could do more in sales then I could, because he could get the brackets and arms made in bulk.

    Give Bill a break, he may have found inspiriation in the stacked laminate construction that allowed for external magnets, and higher speeds, but I doubt his actuator has the same internal magnetics.

    Some of the NKs also have a feedback coil, used for outputing the damping feedback signal in a professional situation, so make sure your driving the right coil.

    I would not say this was letting the birdie out of the bag, as I had to do a minimum yearly amount of business with the medical dealer to remain a customer. So I ended up buying a lot of useless flowing gas Co2 lasers, Trimedyne 1064 nm Yags, etc to get access to the good stuff. Bob buying all those machines guarenteed access to a lot of nice Lexel 88s.

    Steve
    Last edited by mixedgas; 07-06-2015 at 06:22.
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  4. #1734
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    " 15 characters"
    Last edited by Laser Wizardry; 11-13-2015 at 12:50.

  5. #1735
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    Default 1200 Watt 808 module - Anyone have the proper optics for making a badass green?

    With this, is should be possible making a good lightshow on the moon.

    Not shure this is for real but it`s kind of funny. Read the warnings from this seller.

    http://www.ebay.com/itm/Nuvonyx-1200...item3cfe4c8f07
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  6. #1736
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    I have been staring at that laser since it was listed, it is an interesting laser but it is not suitable for DPSS pumping (too broad a wavelength spread) and in terms of general focused light generation it is not really that impressive of a laser. Decent laser diode stack can deliver 1kw into a 0.4mm fiber (NA = 0.15 ) compared to >10mm rectangular spot this thing produces.

    On the other hand, for $50 you can get the entire optical rig out of a sealed dc excited 40w laser cutter, practically brand new http://www.ebay.com/itm/Lot-40W-Co2-...item51d4864813 Enjoyment per $ will be significantly higher ;-)

  7. #1737
    swamidog's Avatar
    swamidog is offline Jr. Woodchuckington Janitor III, Esq.
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    Quote Originally Posted by krazer View Post
    I have been staring at that laser since it was listed, it is an interesting laser but it is not suitable for DPSS pumping (too broad a wavelength spread) and in terms of general focused light generation it is not really that impressive of a laser. Decent laser diode stack can deliver 1kw into a 0.4mm fiber (NA = 0.15 ) compared to >10mm rectangular spot this thing produces.

    On the other hand, for $50 you can get the entire optical rig out of a sealed dc excited 40w laser cutter, practically brand new http://www.ebay.com/itm/Lot-40W-Co2-...item51d4864813 Enjoyment per $ will be significantly higher ;-)

    if i read the date code properly, that's a 3 year old tube.. it *might* still work.
    suppose you're thinkin' about a plate o' shrimp. Suddenly someone'll say, like, plate, or shrimp, or plate o' shrimp out of the blue, no explanation. No point in lookin' for one, either. It's all part of a cosmic unconciousness.

  8. #1738
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    LINK
    might be interesting for someone who knows how to align crystals
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  9. #1739
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    Quote Originally Posted by MR_OVERCLOCK View Post
    LINK
    might be interesting for someone who knows how to align crystals
    Looks like someone has been busy breaking down B&W Tek lasers! The housings that these resonators come from are pretty nice, well, the 473 lasers anyway.
    If you're the smartest person in the room, then you're in the wrong room.

  10. #1740
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    yes, i was busy doing this :P
    resonatros are comming from CNi OEM not BWTek but... is there a diference ( ? )
    probably i will never find enough time to fix them all, and i need some hosts for new diodes... so im keeping some module housings
    and im seeling resonators for parts, some crystals and diodes are already in bin, this ones which are worth something are on ebay :P
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