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Thread: Curiosity question: fastest galvo's

  1. #1
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    Default Curiosity question: fastest galvo's

    I'm just asking this because of plain curiosity.
    I know the galvo standard is 30kpps and the fastest I've heard of are 60kpps Cambridge galvo's.

    I also heard a rumor about there actually being 80kpps galvo's.

    So what really are the fastest galvos?

  2. #2
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    on which angle?

    30k on 40
    or
    30k on 8

    Lets put it in another way,

    Currently LD2000 supports 130kpps

  3. #3
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    Quote Originally Posted by cyberb0b View Post
    on which angle?

    30k on 40
    or
    30k on 8

    Lets put it in another way,

    Currently LD2000 supports 130kpps
    saw it on the box.
    I'm just being curious here so don't take it all to serious

    hmm lets say on 8

  4. #4
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    I'm sure Laserworld do 1000000pps galvos.

    Disclaimer

    Actual specification is a lie, any attempt to scan at this stated speed will almost certainly end in tears, result in personal or property damage including but not limited to:

    Fire, exploding parts and associated shrapnel damage, severe disappointment and distain, voided warranty.
    http://img62.imageshack.us/img62/3985/laser.gif

    Doc's website

    The Health and Safety Act 1971

    Recklessly interfering with Darwins natural selection process, thereby extending the life cycle of dim-witted ignorami; thus perpetuating and magnifying the danger to us all, by enabling them to breed and walk amongst us, our children and loved ones.





  5. #5
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    Quote Originally Posted by Doc View Post
    I'm sure Laserworld do 1000000pps galvos.

    Disclaimer

    Actual specification is a lie, any attempt to scan at this stated speed will almost certainly end in tears, result in personal or property damage including but not limited to:

    Fire, exploding parts and associated shrapnel damage, severe disappointment and distain, voided warranty.
    I bet it's actually rated at: 9000000pps with their very accurate tools ;3

  6. #6
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    Cambridge as far as I know has the fastest scanning (6215h?). I have seen X-Y AOD (Acousto Optic Deflectors, cousins of PCAOMs) that could scan Into the high 100s of Khz with small deflection angles.

    chad


    When the going gets weird, the weird turn pro.


  7. #7
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    Quote Originally Posted by chad View Post
    Cambridge as far as I know has the fastest scanning (6215h?). I have seen X-Y AOD (Acousto Optic Deflectors, cousins of PCAOMs) that could scan Into the high 100s of Khz with small deflection angles.
    As far as I know these are not poly-chomatic. So one color only.
    On the bright side, they don't have a blankpath to worry about.

    Cambrigde has "next-gen" 8330 galvos which are an option in the new arctos projectors.

  8. #8
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    Old thread I know, but currently the fastest we know about is 90K, using our Saturn 1 scanners. Several members here on PL have them so you can take their word for it, not mine...

    Scanning beyond 30K is really difficult, not only because of torque generation reasons, but also because of mechanical stiffness and resonances. These are discussed in my book about laser scanners (www.LaserScanningBook.com).

  9. #9
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    Don't take my word for it, buy my book.

    .........................

  10. #10
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    Giggles aside, it's all true from my vantage point. I've got my new Saturn 1bs set to 60k at 16 degrees optical and they run nearly silently and cold. I've also run them at much greater scan angles at 60k and they still do the Ilda test pattern with ease. I'll gather stats and supporting video over time, but I have no doubt that these scanners will continue to perform admirably up to 90k or more. Oh, and that book is a great read and looks like a cookbook to better scanning in some sections. I'd be willing to bet that you will enjoy the read.

    David
    "Help, help, I'm being repressed!"

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