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Calculating Volume


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temple2101 
Member - Posts: 32
Member spacespace
Joined: January 13, 2004
Location: United States
Posted: January 13, 2004 at 7:56 PM / IP Logged  
Hey guys, I am new to this forum, and am starting to do my research to build some custom subwoofer enclosures for a 2004 Honda civic out of fiberglass.  I have read tons of posts here about fiberglassing that have really helped.  My only question I have right now, is what is the easiest way to calculate the volume of an extremely odd shaped box?  I'm not sure how many subs I will use yet, but I know the box will not be square or anything like that.  I read that someone suggested building the box and then filling it up w/ water or something else to calculate volume, but I want to know the volume before I build.  Thanks in advance!
lspker 
Silver - Posts: 503
Silver spacespace
Joined: November 23, 2003
Location: Canada
Posted: January 13, 2004 at 8:27 PM / IP Logged  
Try splitting your odd shap box into smaller easier to calculate sections.  You have on large rectangular box, easy to measure, and a bunch of smaller boxes or pyramids, add the volumes together and come up with your total.  Not the fastest way, but it will work.  ( Reminds me of  calculas.)
pureRF 
Silver - Posts: 619
Silver spacespace
Joined: July 22, 2003
Location: United States
Posted: January 13, 2004 at 9:38 PM / IP Logged  
I usually use a box made of cardboard and just look at it where the glass box will be and eye it out then mark with tape. I guess u would have to be kinda artistic or something to do this but all my volumes always come out great. Its always better to make it to big, its a ton easier to add volume than take it away (fiberfill but i dont like it)
dream it, build it, fiberglass it
AudioBAHNvlcm 
Copper - Posts: 209
Copper spacespace
Joined: February 19, 2003
Location: United States
Posted: January 14, 2004 at 5:07 PM / IP Logged  

fill the enclosure all the way full with those little foam "cheetos" used for shipping.  then dump them all into a regular box,  then measure how far the "cheetos"  fill up to,  and  then just calculate  W x H x D.  that seems the easiest way to do it.

P.S. you could also use sand.


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