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Thread: Helping a noob building a scanner (15k RG)

  1. #11
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    Jul 2008
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    Eugene Oregon
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    i think you could fit a 2 laser projector on a 12x12 piece of aluminum pretty easily.

    here is how mine is laid out just for a quick reference to kind of give you an idea.

    i will have the scanners and also the red and blue lasers on adjustable tables.



    -Josh

  2. #12
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    Oct 2008
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    Hehe nice... that looks pretty tidy.. that's what i would like to build, but just with two lasers inside (red and green) i just like those colours the most.

    I guess 12x12 is measured in inch ?!
    cm would be just tiny maybe not even the size of a single lab laser.

    Are you using two alloy boards for both "floors"?
    If you could provide the measurements my task for today will be to get the alloy bases.

  3. #13
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    Dec 2007
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    Stockholm, Sweden
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    It seems that we might have a similar "low budget" approach to laserscanner building, I have tried a few things this year, here are my finds:

    For cheap entry-level 532nm green look at these:
    Deal extreme 35mW 532nm module. Price: 57.20 USD - free shipping
    http://www.dealextreme.com/details.dx/sku.10004
    Aixiz 15mW 532nm module on Ebay. Price: 41 USD + 6.50 USD shipping
    (possibly the same as the above one from DX)
    http://shorl.com/tesulifryvobro
    Aixiz 50mW 532nm module on Ebay. Price 65 USD + 6.50 USD shipping
    http://shorl.com/stoprygratrafrifa

    All these will reliably do 70 to 100mW when tweaked a bit.
    The black one from Aixiz seems a bit better built.
    I use the http://www.die4laser.com/dvd-rec/Die4Drive.htm
    as drivers for mine.
    I have used one of the ones from DX for about 40 hours at 75mW wih no degradation I can measure or see.

    I have a BlueRay 405nm laser in my projector, the diode is cheap and can be found in a spare part for the Xbox360: http://www.psxboy.com/804_XBOX360-PH...aser-Lens.html
    It can deliver about 150mW or so. You can propably combine two using the PBS-cube in the drive.
    There is a groupbuy on the way for even more powerful diodes from 6X BluRay writers at LPF:
    http://www.laserpointerforums.com/fo...m=1223438970/0
    Lenses for bluray is a bit complicated, they need to be anti reflective coated for 405 or uncoated to work.
    A standard clear acrylic lens from Aixiz or DealExtreme works ok but there is a another groupbuy on LPF for special 405nm lenses:
    http://www.laserpointerforums.com/fo...num=1212842385

    A really good red diode can be found in the Pioneer 112D och 115D DVD writers that can be found at almost every seller of computer parts.
    http://www.amazon.co.uk/Pioneer-DVR-.../dp/B000NDZRFW
    The diode delivers 250-350mW with good cooling.
    Two can be combined using a Polarizing Beam Splitter (PBS) for a 0.5W red!
    Most people use a cheap Aixiz or DX 5mW red module as a mount for their more powerful homebuilt lasers:
    http://shorl.com/dostaguguratre
    http://www.dealextreme.com/details.dx/sku.5914
    They only cost a few dollars each and are ok.
    Sometimes you need to mount them in someting that dissipates a bit more heat, a bigger block of aluminium with a hole works.
    You can also buy cheap glass lenses at Aixiz, they make a better beam than the plastic lens.
    I have made my own mounts, it's not that hard but you need 3,6mm and 8.6mm drills (uncommon sizes) and M9x0.5mm tap that is quite expensive.



    I have quite cheap 30k scanners from laserphoto in China:
    http://www.laserphoto.org/en/company.asp
    I believe that is the same brand scanners as lasershowparts have on their cheaper scanners.
    The mirrors even reflect 405nm (BluRay) really well.

    My dichros, PBS and mounts are from www.laser-wave.com, they have several european resellers, look at http://www.laser-wave.com/eContact.asp

    Also, try to find a cheap laser power meter. I found a Coherent sensor board on ebay but they are all gone now. Some of my friends have bought this sensor (24USD, max 120mW) on ebay and are happy with it.
    http://shorl.com/radrykukasudru Just connect it to a multimeter.
    The same company has models up to 1W, http://www.bauer-electron.com/eby/eby1wlpm.htm

    A nice write-up isn't it?

    /Daniel
    Last edited by dar303; 10-20-2008 at 23:41.

  4. #14
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    Oct 2008
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    Hell you got spare time man

    Thanks alot for all the links and information.
    My scanner can be a bit more expensive than dx components.
    I don't want a high end thing but decent enough to rip off a nice lasershow in my living room when the next house party is up and running

    I think i am going to buy the components piece by piece and month by month so the costs will be a bit shifted through out the year.

  5. #15
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    Dec 2007
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    Stockholm, Sweden
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    Haha, my son is sick so I'm home from work...he is watching cartoons as I surf the Wild Wild Web!
    Good luck with your projects and remember...we like pictures!

    /d

    Quote Originally Posted by Pococino View Post
    Hell you got spare time man

    Thanks alot for all the links and information.
    My scanner can be a bit more expensive than dx components.
    I don't want a high end thing but decent enough to rip off a nice lasershow in my living room when the next house party is up and running

    I think i am going to buy the components piece by piece and month by month so the costs will be a bit shifted through out the year.

  6. #16
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    Oct 2008
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    Germany, Cologne
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    Ok i start adding up the parts:

    Parts from www.Lasershowparts.com

    LP Series "CNI" 532nm DPSS Laser: 100mw
    ~220€

    LP Series "CNI" 635nm DPSS Laser: 150mw
    ~270€

    SCANPRO Series 20Kpps Galvonometer System + "Lasershow Player Board"
    ~140€



    Still don't know what dichoric mirror i need but the mounts are pretty much the same.


    - Soldering Iron
    - Flux
    Just arrived .... it has started

  7. #17
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    Jul 2007
    Location
    Knoxville, TN, USA
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    Quote Originally Posted by Pococino View Post
    Ok i start adding up the parts:

    Parts from www.Lasershowparts.com

    LP Series "CNI" 532nm DPSS Laser: 100mw
    ~220€

    LP Series "CNI" 635nm DPSS Laser: 150mw
    ~270€

    SCANPRO Series 20Kpps Galvonometer System + "Lasershow Player Board"
    ~140€



    Still don't know what dichoric mirror i need but the mounts are pretty much the same.

    .....
    Since 532nm (green) tends to be a little cheaper as you get into higher power lasers, many folks would recommend you start with a "Pass Green / Reflect Red" dichro. The dichro will be set up so it as at roughly a 45 degree angle in your beam path. The green beam passes directly through the dichro, and the red is reflected by the dichro.
    If you add a blue laser later, you would add a "Pass Green & Red / Reflect Blue" dichro, positioned between the Red laser and scanners.

    Here's a link with a good depiction of a typical RGB layout:

    http://www.photonlexicon.com/forums/...11&postcount=2

    Hope that helps!
    Last edited by Stuka; 10-21-2008 at 09:00.
    RR

    Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
    1979.
    Sweet.....

  8. #18
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    Oct 2008
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    Germany, Cologne
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    Hey Stuka,

    thanks for your help. One peice more in my puzzle to complete the list and my "endeavor"

    Things i got so far:
    - Soldering Iron
    - Flux
    - Alluminuim (2 boards; 50cm x 30cm for the base, 40cm x 15cm for the upper level, both boards are 3mm strong (i hope that's enough))
    - lots of wooden boards
    - a big shopping basket at lasershowparts.com (not yet ordered)


    The only thing which is holding me back from placing the order at lasershowparts are the custom fees when ordering from australia.

    Did anyone order something 1000$+ from there and got the custom invoice?
    Maybe even Dave can give me some advice on that....

  9. #19
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    Knoxville, TN, USA
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    You might want to e-mail or PM Dave or Aijii directly.

    They deal with customers all over the world, so I'm sure they'll be able to figure out the best shipping & cost arrangement for you!
    RR

    Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
    1979.
    Sweet.....

  10. #20
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    Dec 2007
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    Stockholm, Sweden
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    3mm aluminium is considered a bit thin for optics mounting (it flexes), 10mm seems to be standard around here (PL). The 3mm is good for mounting the electronics or making the enclosure though.

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