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    DejaWiz's Avatar
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    Helpful to those designing an angled box.

    Found this volume calculator.

    http://grapevine.abe.msstate.edu/~ft...ramidlong.html

    Anyone have any others to post?



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    Re: Helpful to those designing an angled box.

    fail geometry?




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    Re: Helpful to those designing an angled box.

    Just apply (b1+b2)/2 for length AND width ...



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    Re: Helpful to those designing an angled box.

    Quote Originally Posted by jdawg View Post
    fail geometry?
    No I didn't. But there are many out there that might just find a tool like this useful to make the job easier. If we can keep 1 person from buying a prefab shitbox, then that's 1 saved soul.



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    Re: Helpful to those designing an angled box.

    why not just add the volume of the rectangle to the volume of the triangle(s)...?



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    Re: Helpful to those designing an angled box.

    Quote Originally Posted by j3bus2k3 View Post
    why not just add the volume of the rectangle to the volume of the triangle(s)...?
    As easy as that may be for us to do, there are those out there that either a.) don't understand how to do it, or b.) to lazy to break out a piece of paper and do the calculations. Which is why I posted the calculator to help others out.



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    Re: Helpful to those designing an angled box.

    I like the one on this page better because it also asks for the thickness of the wood you will be using.

    http://www.the12volt.com/caraudio/boxcalcs.asp


    Middle of the page, titled "Volume Calculator - Wedge Enclosures 1" and "Volume Calculator - Wedge Enclosures 2".




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    Re: Helpful to those designing an angled box.

    Quote Originally Posted by j3bus2k3 View Post
    why not just add the volume of the rectangle to the volume of the triangle(s)...?
    That's much harder than doing (w1/w2)/2 * height * (b1/b2)/2



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    Re: Helpful to those designing an angled box.

    Quote Originally Posted by ultimate157 View Post
    That's much harder than doing (w1/w2)/2 * height * (b1/b2)/2
    And that's true!



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    Re: Helpful to those designing an angled box.

    Call me old fashioned, but I refuse to use any of those random calculators. I would much rather use my geometry skills and knowledge of how I will build my enclosure than just putting in random numbers and trusting them.



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    Re: Helpful to those designing an angled box.

    Ya, i tried using the calculator programs to design a box, but without fail, every program told me different dimensions, and different port lengths.

    It's more work to figure out whether the calculations are correct, and what displacements they're deducting, then to figure it out for yourself.




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    Re: Helpful to those designing an angled box.

    Quote Originally Posted by heyman421 View Post
    It's more work to figure out whether the calculations are correct, and what displacements they're deducting, then to figure it out for yourself.
    I agree. Although a calculator can be helpful when undergoing the foundational process of a box design. Roughly X dimensions will yield roughly Y volume.



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