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Thread: QM-2000 Questions... ILDA Cable Length, What is Z axis???

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    Default QM-2000 Questions... ILDA Cable Length, What is Z axis???

    Hey Guys!
    The title explains it all. What is the longest cable you guys have used without loosing signal? I have a 50FT 19 conductor cable I want to use, non twisted pair but shielded.

    Which brings me to this question... Obviously there are some color modulation channels I won't be using anytime soon. (until I get an 8 channel PCAOM and a whitelight gas rig ) What is the "Z axis" generally (my guess is rarely) used for?
    Thanks!
    Adam

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    soforene's Avatar
    soforene is offline The Troll formerly known as Herbert Von Poople-Futtocks
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    I too use a 15 meter (49.212 Feet) cable on a regular basis with no issues.

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    Quote Originally Posted by soforene View Post
    I too use a 15 meter (49.212 Feet) cable on a regular basis with no issues.
    Ah good news! Do you know if your cable is twisted pair? The reason I ask is my cable needs the ends changed and I don't want to spend the money on connectors and shells if it won't work right.

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    soforene's Avatar
    soforene is offline The Troll formerly known as Herbert Von Poople-Futtocks
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    Sorry Mucka, I purchased it as a DB 25 pin male to DB25 pin female lead and it has no markings on it.
    Is there any way I can tell by looking at it?

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    Hi Mr Evil

    ive been using a 100M (300ft ) ilda cable made from 2 x Cat5 cables ( stranded conductors ) which have individualy screened twisted pairs and been running with no problems

    now that i have the Qm2000 in the .net case im just using 50M cat5 cables from my ethernet port

    all the best ... Karl

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    What is the "Z axis" generally (my guess is rarely) used for?
    Believe it or not, you can use the "Z" channel to derive a 2nd x/y signal from 1 QM2K board to drive a second set of scanners. If you have the lasers to 1 set of scanners polarized vertically, and the lasers to the 2nd set of scanners polarized horizontally, with a special pair of glasses you get 3D images.

    I've never seen it done, always wanted to play around with it just never have.

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    Quote Originally Posted by DZ View Post
    Believe it or not, you can use the "Z" channel to derive a 2nd x/y signal from 1 QM2K board to drive a second set of scanners. If you have the lasers to 1 set of scanners polarized vertically, and the lasers to the 2nd set of scanners polarized horizontally, with a special pair of glasses you get 3D images.

    I've never seen it done, always wanted to play around with it just never have.

    In the old days it was also used to flip polarization every other scan,

    Either method, the two scan pairs or the polar flipping results in pretty spectacular 3D.

    Now that scanners have came way down in price, it would be good to bring this back again.

    I've seen it, its worth it.


    Steve
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    WOW! thanks for the info guys! Definitely going to have to try that one day. Sounds awesome! Also, sounds like my 50FT cable won't be a problem at all. Cool!
    Thanks Again!

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    You can even have a stereographic display with 3 galvos.

    This takes a non-conventional galvosetup because usually the laser hits the x- scanner first.

    Take a red and a green laser and let both of them hit the same Y-scanner.
    Not co-linear but under a slight angle.
    Then have a pair of x galvos each deflecting the red and green part deflected by the y scanner.

    take a red-green goggle , et voila!

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