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Thread: project du jour

  1. #1
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    Default project du jour

    Today i took one of those cute lil' MG modules and stuck a 636nm 150mw diode in it hehe..
    -Thanks Y'all for turning me on to Laser Ben's posting of these lil' gems-
    Attached Thumbnails Attached Thumbnails MG636 4.JPG  

    MG636 5.JPG  

    MG636 3.JPG  

    MG636 1.JPG  


  2. #2
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    Default

    What about the beam?! More pics! Can you get a nice small round dot and a well collimated beam with it?

  3. #3
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    Default

    If source is cr#p the beam is cr#p. If you collimate it it'll be too big to fit onto galvos.
    I hired an Italian guy to do my wires. Now they look like spaghetti!

  4. #4
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    Default

    -Yeah here's a pic of the spot on the wall.. about 8mm round @ 14 ft..
    Stays pretty tight @ 100 feet
    Too big for the galvo mirrors. yeah, guess I'll have to go for the big ones..
    Heh-- No 30K for me..but IDC...
    Attached Thumbnails Attached Thumbnails 636 x.JPG  

    Last edited by steve-o; 03-29-2008 at 19:25.

  5. #5
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    Default

    Picys?
    You want more???
    Well...>>>
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    Last edited by steve-o; 03-29-2008 at 21:00.

  6. #6
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    Default

    Hey!!!

    Glad to see that it works well!!! I'll have to stick a pair of the open can diodes together!
    CLICKY!!!

    Admin: In the immortal words of Captain Planet: YOU HAVE THE POWER
    Admin: (To quit being a bitch)

  7. #7
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    Default

    Yeah, working good-
    Thanx Ben!
    You got a good eye for nifty gadgets- Please keep posting 'em
    ___________________

    These things got a Peltier under the LD housing -- any idea of what current? At about 1.2V it gets pretty cold, I dont want to blow it up Thinking about a series resistor. They also have some sort of a temp sensor imbedded in the housing...
    Left pic- Peltier seen under the lens case, right pic- experiment with Peltier junction on heatsink secured with goose- grease.
    Attached Thumbnails Attached Thumbnails pelt1.JPG  

    pelt2.JPG  

    Last edited by steve-o; 03-30-2008 at 15:47.

  8. #8
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    Default more pix

    Ok- Heres the beamspot at better then 100 feet, along side of LaserWave's perfect beam profile. Mine's slightly rectangular, but the 636 project's getting there.. wouldnt mind finding a few more of those MG modules, heh... Ben?? .. and maybe selling a few. The aperature beam size is too big for the high-speed galvos tho.. but wtf ..
    Attached Thumbnails Attached Thumbnails redblue2.JPG  

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  9. #9
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    Thumbs up

    Very nice Steve! 8mm @14 ft... how big is it at the aperature? 1 foot? It can't be that big. You souldn't have too much of a problem getting that on a smaller mirror. What it the loss on those optics?
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  10. #10
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    Smile

    About a foot and a half ..
    seriously tho..
    It's 4 x 9 mm at the aperature.
    Losses- hmmm- probably 50% :\
    maybe less.. still havent gotten around to getting a power meter
    so its hard to tell.
    Last edited by steve-o; 04-01-2008 at 06:14.

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