guess-timating fibreglass box airspace?
#1
how do you go about guaging how much airspace you'll have in a fibreglass enclosure? I am basically doing giant kickpanels for my sub-boxes in my truck, and want to have a reasonably accurate way of figuring this out, without actually having to calculate too much.
Is this possible?
The subs I'm using need roughly 1 ft/cube each, so if it is simply close to that will it be ok?
Will I be guess-timating, or what?
Is this possible?
The subs I'm using need roughly 1 ft/cube each, so if it is simply close to that will it be ok?
Will I be guess-timating, or what?
#3
Or, once it's built take it out of the car if you can and fill it with water. To get the most accuracy, use a graduated measuring cup. Mark and count how many litres you put in until it's completely full.
Keep in mind: 1 cu ft = 28.317 liters
Take your total liter amount and divide it by 28.317
[img]smile.gif[/img]
Keep in mind: 1 cu ft = 28.317 liters
Take your total liter amount and divide it by 28.317
[img]smile.gif[/img]
#4
I suppose only once you'll be done your fibreglass enclosure, then you'll know what enclosure size you'll have when you measure it. So I guess you'd be going a bit backwards on it. [img]graemlins/freak.gif[/img]
A bit of trial and error needed there.
A bit of trial and error needed there.
#5
As I was scoping out my car so I could figure out where to mount my woofers I had a plastic bag filled with packing peanuts to the optimum volume. I kept shoving the bag in voids and crannies to see where I could and could not put the woofers. Crude but inexpensive and effective.
#6
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The first time I built a fiberglass enclosure, I filled it with water and weighed it. Water weights 1kg per liter. Weigh the box empty, top her up and weight it again. Subtract the second number from the first and you have your volume in liters. There are 28.316 liters in a cubic foot if you need the number in imperial units.