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Thread: Review - 100mw 473nm Lasever module

  1. #11
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    Quote Originally Posted by andy_con View Post
    ...and ive also got a 1 inch by 1i nch alum bar on order i will be mounting that to the side of the psu as well.
    LOL

    The whole point to heatsinking is as much surface area as possible, not as much aluminum as possible.... Just buy a small heatsink.. simple
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  2. #12
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    Quote Originally Posted by stanwax View Post
    Andy
    mounting the psu on ally plate will make a world of difference but make sure that your optics lasers and scanners are not mounted on the other side. I know you were talking about a split level system - if that plate is the divider you may run into alignment drift as it all warms up - you will never eliminate this ut you can minimise it by keeping everything cool.Therefore it may be better to have 2 plates close together with an air space between - even if its only a few mm. Then you can have your fans moving air across the psu plate on both sides and it will move some air from the laser plate and assist cooling there without having fans in the optics area.

    Rob

    im having two levels psu on one and lasers and optics on another so it should be fine.

    LOL

    The whole point to heatsinking is as much surface area as possible, not as much aluminum as possible.... Just buy a small heatsink.. simple
    LOL yes i know you will understand once its done, ill post some pics
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  3. #13
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    this is what i mean.

    so both psu are mounted to the base plate and then the side that gets hot is mounted to the aluminium bar

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  4. #14
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    Andy, the aluminum bar is not really the best thing to do. It will soak up the heat from the power supply but because of it's large volume to surface ratio it won't be able to get rid of the heat and then you'll just end up with a hot power supply and a hot bar. It's better than nothing but you'd be as well off by just attaching a piece of sheetmetal to the power supply.

  5. #15
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    will holes help??

    there is going to be a fan blowing over/onto the alum bar
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  6. #16
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    As Dave said its surface area thats important. Thats why CPU heatsinks have fins rather than being a solid lump of ally. A 3-5mm ally plate in an L shape bolted to the base would be better as it will draw heat away from the PSU and into the base and/or some heatsink fins bolted to the L shape will assist greatly in dumping the heat. Its effecient heat coupling and subsequent transfer to moving air that you need to acheive.
    Take a look at what I did - very simple - my baseplate was getting too hot so I cut some fins off some CPU heatsinks (its one heatsink cut in half) and I screwed them to my base plate with some heatsink compound in between. They are right in the airflow of the fan you see and have made a wapping improvement to my cooling - its now not a worry about heat in the base plate - and its pretty crude.

    Rob
    Attached Thumbnails Attached Thumbnails heatsink02.jpg  

    heatsink03.jpg  

    heatsink01.jpg  

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  7. #17
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    yeah ok point taken ill see what i can do

    shame i gave all my heat sinks away lol
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  8. #18
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    Thats why I kepp everything - I have a wide and varied selection if you need andy

    Rob
    If you need to ask the question 'whats so good about a laser' - you won't understand the answer.
    -----------------------------------------------------------------------------------------------
    Laserists do it by the nanometre.

    Stanwax Laser is a Corporate Member of Ilda

    Stanwax Laser main distributor of First Contact in UK - like us on Facebook http://www.facebook.com/FirstContactPolymerCleaner
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  9. #19
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    LOL ive got some aluminium i can use i think
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