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  1. #1
    binterpid's Avatar
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    how to build a box

    i cant not figure out how to build a box right. when ever I do my calcultions it never works out to what the computers are getting.

    for instace for a box that is
    14" H
    38" W
    14" D

    i multiple these together and then divide by 1728 and get 4.0023 cu ft

    but when I enter it in the calc I get 3 cu ft why?

    the computer doesnt account for speaker dis either and I know wood dis is not the much. so whats wrong?







  2. #2
    NhustlaR's Avatar
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    Re: how to build a box

    youre not taking the 3/4 MDF board you will be using. The dimentions are the outer dimentions, not the internal
    good day




  3. #3
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    Re: how to build a box




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    Re: how to build a box

    Quote Originally Posted by binterpid
    for instace for a box that is
    14" H
    38" W
    14" D

    i multiple these together and then divide by 1728 and get 4.0023 cu ft

    but when I enter it in the calc I get 3 cu ft why?
    account for the thickness of the wood. assuming you're using the standard 3/4" MDF:

    (14-1.5)*(38-1.5)*(14-1.5)=x
    12.5*36.5*12.5=x
    5703.125=x

    5703.125/1728 = 3.3 cu ft.

    you subtract 1.5 because there are two pieces of wood for which you are subtracting the thickness. hence 3/4 x 2 = 1.5.



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    Re: how to build a box

    thanx for the help




  6. #6
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    Re: how to build a box

    psst. dont listen to jordan. that site isnt as accurate as HE thinks




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    Re: how to build a box

    Quote Originally Posted by NhustlaR
    psst. dont listen to jordan. that site isnt as accurate as HE thinks
    She




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    Re: how to build a box

    Yah SHE....sorry i got that website and it worked fine for me so HA



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  9. #9
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    Re: how to build a box

    my b. sorry for the disrespect. but that site still isnt tooooooo reliable.




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    Re: how to build a box

    sorry i just was tryin to help..



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    Re: how to build a box

    i understand...




  12. #12
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    Re: how to build a box

    what kind of system do u have ? nhustlar



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