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Thread: Starting a new project

  1. #1
    Join Date
    Dec 2006
    Location
    Essex, UK
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    Default Starting a new project

    i was in maplins the other day and saw this case and thought hm thats looks a good size and shape lets get one. so am now craming lots in there to make a 5-6watt 445 modules.

    additional pics will follow as and when

    the actual lid measures just 120mm by 95mm, so its going to be a tight build

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    Aluminium Optic Mounts

    http://www.laser-man.co.uk/opticmounts/

  2. #2
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    Dec 2006
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    Essex, UK
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    Default

    looks like its going to work, even if it is a bit tight





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    Aluminium Optic Mounts

    http://www.laser-man.co.uk/opticmounts/

  3. #3
    Join Date
    Dec 2006
    Location
    Essex, UK
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    Default



    you know its a tight build when you have to mod the mirror mounts





    Eat Sleep Lase Repeat


    Aluminium Optic Mounts

    http://www.laser-man.co.uk/opticmounts/

  4. #4
    Join Date
    Jun 2008
    Posts
    286

    Default

    i love this building pictures.

    i have a question, why you using resistors ?
    the flexmod will set the current, so why need them ?
    it's extra heat inside

  5. #5
    Join Date
    Nov 2009
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    57

    Default

    Quote Originally Posted by RGB LASER VERKOOP View Post
    i love this building pictures.

    i have a question, why you using resistors ?
    the flexmod will set the current, so why need them ?
    it's extra heat inside
    Looks like he's driving direct from a PSU for testing.

  6. #6
    Join Date
    Feb 2007
    Location
    Herts, UK
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    1,253

    Default

    Nice work Mr C, tight as a ducks chuff in there!

    This will be at the LEM, yes?
    A little bit werrrr, a little bit weyyyyyy, a little bit arrrrgggghhh

  7. #7
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    Default

    cos i was advise that you need resistors when running 4 diodes off one driver. dont ask me im crap at electronics.


    indeed very tight, yes it will be at the meet boss
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    Aluminium Optic Mounts

    http://www.laser-man.co.uk/opticmounts/

  8. #8
    Join Date
    Jun 2008
    Posts
    286

    Default

    hope someone can explain me the risitors.
    becourse i see them only as lost of current and heat up the housing!

    pitty i can not see it there...
    but i love see the pictures here..
    good forum to share !

  9. #9
    Join Date
    Dec 2009
    Location
    MI, flint, farmington hills
    Posts
    569

    Default

    they are balancing resistors
    Not all the diodes have the same resistance when running and thus some will take more current than others the resistors are there to make sure they all get the same current.

  10. #10
    Join Date
    Jun 2008
    Posts
    286

    Default

    i think not!

    the resistors have the same values, then you need potentio meters variable risitors.
    and i think the diode current and drempelspanning (sorry dutch) are pritty close powers (1,1 till 1,3W) and we calculate with 1w so there no problems.
    if you ask me....
    but maybe i am wrong, i just not understand it, are there electronic experts here who can explain ?
    i am a electric expert, not electronic

    laser greets joost

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