PDA

View Full Version : okay I drew my box (pics)



PatFitz9
02-23-2006, 09:44 PM
here is the box for my 18xxx. what do you guys think? net internal volume: 4.218 cubes. here are the questions i have (it's my first box).

1. The front face is 1.5 inches thick. is it okay to just glue two pieces of 3/4" MDF?
2. Are the braces thick enough? they are just going to be one piece of 3/4" MDF. is that strong enough?
3. Should I change anything? should I make it more rectgangular?
4. Does anyone know if the cutout should be 16.75"? I thoguht I read that somewhere.
5. The colored pic is the different sheets of MDF. top and bottom, left and right sides, and front (2) and back will be the same, that look ok?
thanks for the help, you guys rule.

here is the dimentions pic
http://i33.photobucket.com/albums/d84/PatFitz9/Dimentions.jpg

See Thru
http://i33.photobucket.com/albums/d84/PatFitz9/SeeThru.jpg

and color coded
http://i33.photobucket.com/albums/d84/PatFitz9/Colorsheets_JPEG.jpg

azbass
02-23-2006, 09:45 PM
id double the front baffle

PatFitz9
02-23-2006, 09:45 PM
doh, I can't get that dimensions pic big enough... i'll work on that in about an hour.

edit: my computer is wacky, i just refeshed it and it's normal size

XtrmAudioCncpts
02-23-2006, 09:45 PM
what kind of volume are you losing because of your bracing?

tRiGgEr
02-23-2006, 09:55 PM
Brace the back wall also and you're good to go.

XtrmAudioCncpts
02-23-2006, 09:58 PM
Brace the back wall also and you're good to go.
i second that


id double the front baffle
i second that too. i didnt see what you were putting in this box before i looked at the pics and posted

PatFitz9
02-23-2006, 10:12 PM
well the front sheet is actually 2 3/4" sheets, you think I need thicker than that? and how should I brace the back wall?

PatFitz9
02-23-2006, 10:16 PM
what kind of volume are you losing because of your bracing?

Volume of braces is .1445 cubic feet for the both of them. the total volume is 4.58333. and i took a driver displacement of .25 (called RE for that one). soooo 4.58333 - .25 - .114 = 4.218. RE recommends 4.2.

mazdakid
02-23-2006, 10:48 PM
put a brace from one brace to another and to the back wall in the middle

PatFitz9
02-23-2006, 11:23 PM
put a brace from one brace to another and to the back wall in the middle

like a "T" shape? should I use MDF for that, or a square rod? I don't think that there is going to be enough room to go across the middle of the brace with the sub in there. i would have to put the crossbar like 4 inches from the back wall. think i should still do that?

PhatTonyDeMarco
02-23-2006, 11:26 PM
I think all that bracing is a little excessive, it should be fine at it is. Those braces cover front to back and top to bottom, I see no issue.

And if you boners would have read his post, he said the front baffle will be 1.5" thick.

PatFitz9
02-23-2006, 11:38 PM
And if you boners would have read his post, he said the front baffle will be 1.5" thick.

thanks buddy, i wasn't really sure why i needed more than that :P should i just glue the two pieces together? or do i need to do that?

Mr. Opportunist
02-24-2006, 06:45 PM
just do all sides 2x 3/4" that way you dont have the bracing taking up more internal volume then necesary

PatFitz9
02-24-2006, 06:53 PM
when i double up the sides though, do i need to glue them together? or just screw em to each other?

Pyro_By_Nature
02-24-2006, 07:18 PM
just do all sides 2x 3/4" that way you dont have the bracing taking up more internal volume then necesary


Ummmmm [no]

Proper bracing IS more effective than doubling everything up...........

PatFitz9
02-24-2006, 07:51 PM
and doubling everything up would take up more room and be heavier.

all i really want to know is if i need to glue the 2 front boards together

vladd
02-24-2006, 07:56 PM
I would, and a couple screw wouldn't hurt