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Thread: Variance Help (USA)

  1. #1
    Join Date
    May 2006
    Location
    Pasadena (Home)/UCLA (work)
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    30

    Default Variance Help (USA)

    Hi,

    now that I have my box complete I am ready to make it legal. I was wondering if you guys could help me accomplish this.

    I know the part about actually filing the paperwork, but before I do that I understand that you need the following:

    Proper labels (should be easy to get right?)
    an indicator light (like an LED?)
    a shutter (a mechanical one?)
    a key swtich

    Any help with these things (and anything else I am leaving out) would be greatly appreciated!

    thanks,

    -MO-

  2. #2
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,677

    Default

    KVANT Australian projector sales
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  3. #3
    Join Date
    May 2006
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    Default

    THANKS!!! This is a big help dave.

    Where can I get the shutters from?

    -MO-

  4. #4
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,677

    Default

    Hehe,

    Dont take what i say as gospel, as i dont live in the USA, therefore dont have to worry about variancing any of my lasers(even tho i make my lasers safe as possible, make use of cable interlocks, shutters, etc)

    There are a few options for a shutter. They must be spring loaded tho, so when power is removed from them they will close, and shut off the laser beam

    One option is a GM-20 style actuator. I think these are better for beam table work tho.

    another option you will find here: http://www.nmlaser.com/safety.htm
    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

    Lasershowparts- Laser Parts at great prices
    https://www.facebook.com/lasershowparts/

  5. #5
    Join Date
    Jan 2005
    Location
    Norway
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    1,301

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    do I need a shutter on my DPSS laser projector ?

    Why do I need a shutter, becouse when I turn OFF the power with my remote switch.. the power is out and the laser goes OFF !! no matter if there is a shutter there or not...

  6. #6
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    May 2006
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    Quote Originally Posted by liteglow
    do I need a shutter on my DPSS laser projector ?

    Why do I need a shutter, becouse when I turn OFF the power with my remote switch.. the power is out and the laser goes OFF !! no matter if there is a shutter there or not...

    EXACTLY!!!!! So why the need for a shutter???


    -MO-

  7. #7
    Join Date
    Aug 2006
    Location
    North West England
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    1,148

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    Shouldn't the shutter be set up so that if the beam stalls (maybe because of a fault on the driver card for the galvos) the shutter blanks the beam?

    Jim

  8. #8
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    Jan 2005
    Location
    Norway
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    But if the galvo\amp fails, why not turn off the power then.. and the lasers turn OFF !!

    But.. my guess was that the sutter was more ment to be on the HUGE gas\HeNe lasers that stay on if you disable the galvos... ?

  9. #9
    Join Date
    Aug 2006
    Location
    North West England
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    I think the idea is that it needs to be automatic and instant.
    The laserist may not be near the laser/controller when a fault developes, If this happens in the UK and Europe where audience scanning does occur there could be a serious accident.
    I've just bought a CIR Super-1 and if you have ILDA selected but not connected to the port it still emits the full power beam without any movement , I must do something about it before I use it on my mobile disco.

    Jimbo

  10. #10
    Join Date
    May 2006
    Location
    Pasadena (Home)/UCLA (work)
    Posts
    30

    Default filing out the form.......

    I had a couple questions regarding the filing out of the Variance form:

    1. What do you put down for Docket number?
    2. If its my own private laser, what do I put down as the name of the company?
    3. Is the address of the company my address, or the place where I plan to be using the laser (ie. club address)
    4. What is my title?

    thanks,

    -MO-

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