Someone tell me Interior Volume
1 - 10 of 10 Posts
This is what we need to do...
Think of your measurements as 32.5 x 10.5 x (3.5 + 6.5 / 2). We must account for your assumed 0.75" material. 32.5 x 10.5 x 5 = 1706.25. You need to divide that by 1728. That comes out to just under a cubic foot for both subs. Keep in mind that this does not account for subwoofer or bracing displacement.
Tempe
Think of your measurements as 32.5 x 10.5 x (3.5 + 6.5 / 2). We must account for your assumed 0.75" material. 32.5 x 10.5 x 5 = 1706.25. You need to divide that by 1728. That comes out to just under a cubic foot for both subs. Keep in mind that this does not account for subwoofer or bracing displacement.
Tempe
If you want exact air space, What I do is draw it up on autocad and let the computer figure what the area of the triangle is and then multiply that by the internal width and divide that by 1728. I just draw in what width of wood I'm using.
Math is okay for simple boxes like rectangles and even this box which is a rectangle and a triangle really. But the cad is unbeatable for the more complicated boxes.
I drew yours up real quick and here's what I got.
If you use all 3/4" material, the exact volume is .98365 cu.ft. Not including bracing or sub displacement.
If you use all 1/2" material, the volume is 1.1341 cu.ft. not including any bracing or sub displacement.
I can also do all 5/8" or combinations of 3/4" and 5/8", etc, etc.
Math is okay for simple boxes like rectangles and even this box which is a rectangle and a triangle really. But the cad is unbeatable for the more complicated boxes.
I drew yours up real quick and here's what I got.
If you use all 3/4" material, the exact volume is .98365 cu.ft. Not including bracing or sub displacement.
If you use all 1/2" material, the volume is 1.1341 cu.ft. not including any bracing or sub displacement.
I can also do all 5/8" or combinations of 3/4" and 5/8", etc, etc.
Joined
·
4,185 Posts
hey megabass, could you draw up a box for a reg cab first gen using two twelves at .88cubic feet fer sub? with a 3/4" seperator plate using all 3/4"? if you could i would be unpayably grateful. im having a lot of thoughts on trying to get this setup in! i can get you some dimensions tomorrow.
Probably can. The most important thing to consider when trying to get 12s in a reg. cab is to pick a sub with a shallow mounting depth. Unless you want to lose some legroom. I normally draw the sub to scale and stick it in the box to make sure it has enough depth to clear the back. Just give me some rough dims.
I use Autocad 2000. It's a $3,000 drafting program. They do make a $500 version called Autocad LTTempe said:
The best part is any box with angles is real easy to get the degree at which you need to cut the bevel on the panels. I don't even worry about sticking with 20,30,45 degrees or whatever. Most of my angle cuts go out to at least 2 decimals.
The attached box is just a simple truck box. And I did a quick and dirty on the size of the pieces. I forgot to show the dividers. But you can see how easy it can get (compared to guessing). That way, all the joints will fit tightly together. When I build a box, I cut all the pieces out first--and then go put them together. As long as you can cut accurate to the print. Gotta love the table saw for that:clap: Also saves me from wasting wood. I draw it up and I know if it will work before I make the first cut. Gives me flexibility to change my mind and try different things before I build.
Attachments
Joined
·
4,185 Posts
Top depth-4 1/2", bottom depth-9", width-50", height-19 3/4." sorry it took so long, i just have no time anymore! these are all max exterior dimensions. thanks lots man! also there is gonna be a 1" divider in the middle.
1 - 10 of 10 Posts
Join the discussion
Join now to ask and comment!