Building box tommorrow..Need Advice

[sfniner415 10+ year member]

So I just got in my new 10" Arc Audio D4's and wanted to build a ported enclosure for my single cab truck but I need advice //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

The box dimensions are:

Width: 50

Height: 17

Top Depth: 5

Bottom Depth: 8

Ports are going to be: 3" round and 15" long and will be on each side

Tuned Fq: 32Hz

So with my calculations that should give me 2.175^3 to work with.

I plan to use 2 seperate chambers so that the box will be stronger.

I'm going to goto lowes tommorrow and plan on purchasing:

- 3/4" MDF

- PVC pipe (for ports)

- 2" drywall screws

- Panhead sheet metal screws (1/2" and 3/4")

- Carpenter's glue

- Silicon caulk

- Non-hardening rope caulk

Am I going to need anything else and am I going to need the brace the box some more or will that be enough?

Thanks

Click to read more...

 

[Rawr-DQ 10+ year member]

You could use some tools, but I guess we should assume you have some.

My advice is, measure thrice, cut once. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Rich B 5,000+ posts]

Binding posts?

 

[PhatTonyDeMarco 5,000+ posts]

You don't need 2" screws, they will just be easier to split the wood with. Get 1 1/2" at most.

For woodglue use Titebond II, it is awsome...

If you don't have a countersinking bit, I would get one. Things go much smoother when you predrill your holes and counter sink. Also, a pair of corner clamps will come in handy //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

And just take your time, patience is a virtue and will bring on success.

 

[iamamp3pimp 5,000+ posts]

i am agreeing on the corner clamps like crazy.

 

[sfniner415 10+ year member]

Crap, I forgot to add the 3/4 MDF that I'm going to add to seperate each chamber for bracing....So that means I have to subtract .75 off my internal volume to get my actual internal volume now right?

btw, would that be enough bracing for a box that big?

thanks

 

[sfniner415 10+ year member]

will I even need to brace this box or should the 3/4 MDF be enough? If I do need to brace it, should I just put a solid piece of MDF in there in order to make it 2 different chambers or should I cut holes in it for air to pass through?

Thanks

 

[sfniner415 10+ year member]

To give you guys a visual:



I know its not the greatest but //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Anyways, I just wanted to know if thats gonna need bracing because if so then that throws everything off because I got into take the brace dimensions into factor for my actual internal volume and change my port length etc.

Thanks

 

[azbass 5,000+ posts]

dont be shy on how much glue you use.

 

[ramos 5,000+ posts]

Might want to do a brace in the middle . The front back and bottom are pretty long . //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[ramos 5,000+ posts]

But you wouldn't need anything large , could use a piece of 1" dowel connecting the front and back , and a piece connecting the top and bottom . Should suffice //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[sfniner415 10+ year member]

Might want to do a brace in the middle . The front back and bottom are pretty long . //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Yeah thats exactly what I was thinking but should I put a solid piece of MDF in there? Or a MDF piece with holes in it to let air pass through?

If I make it 2 different chambers, each chamber would have see .9 cubes and the port size would have to be rediculously long and I already got the precision ports which have a max length of 17 inches //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

The other problem with putting holes in the brace I wouldn't know how to account for the brace's dimension and it would throw my port size, tuned fhz and everything off //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

Any suggestions? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[ramos 5,000+ posts]

Yeah thats exactly what I was thinking but should I put a solid piece of MDF in there? Or a MDF piece with holes in it to let air pass through?
If I make it 2 different chambers, each chamber would have see .9 cubes and the port size would have to be rediculously long and I already got the precision ports which have a max length of 17 inches //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

The other problem with putting holes in the brace I wouldn't know how to account for the brace's dimension and it would throw my port size, tuned fhz and everything off //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

Any suggestions? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

But you wouldn't need anything large , could use a piece of 1" dowel connecting the front and back , and a piece connecting the top and bottom . Should suffice //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Yeah I might have one or two //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif If you have scrap mdf , you could use it for bracing as well . Cut like a 3" wide piece long enough to reach from the front to the back you would loose 3 x however long x .75 (width of mdf) /1728 = cuft you would loose for that piece of bracing. Do the same with a piece connecting the bottom and top //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Flipx99 5,000+ posts]

GL on the angles. Looks to be a bear. I haven't made a wedge shaped box yet, but good luck.

 

[ramos 5,000+ posts]

Get you an angle finder //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif