I can't do it :(

[Xprime4 10+ year member]

A friend asked my for some help with his box design, and i just realize my math skills are long gone. I feel dumber than a 3th grade student

don't worry, i never had drawing skill either //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

JBL recommand 2.25 ft/cu but the dimension in the pic are more important. The tuning can be anything between 30-34hz. The bottom angle (not the right one) must be 68degre. I just can't calcul anything, would a good samarian help me?

Click to read more...

 

[iamamp3pimp 5,000+ posts]

ygpm

 

[Xprime4 10+ year member]

Well if i could only know the top sheet dimension (the 68 degree 3th grade calcul), I should be fine with the rest

 

[iamamp3pimp 5,000+ posts]

i got you

2 minutes

 

[thehardknoxlife 10+ year member]

3th? Is that a grade in Canada.

 

[iamamp3pimp 5,000+ posts]

 

[x1le 10+ year member]

3th?

haha you beat me do it. 3th?! Thith?! Thirdth?! who knows...

 

[iamamp3pimp 5,000+ posts]

now thats if the top piece sits on top of the box, with the front screwing into it.

 

[Xprime4 10+ year member]

now thats if the top piece sits on top of the box, with the front screwing into it.

thanks a lot good samarian (sp ??? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif )

3th grade... doesn't exist over here 3rd does

it goes like this

elemental : 1-2-3-4-5-6

Secondary 1-2-3-4-5

College 1-2

University from 3 to 8 years

 

[thehardknoxlife 10+ year member]

thanks a lot good samarian (sp ??? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif )
3th grade... doesn't exist over here 3rd does

it goes like this

elemental : 1-2-3-4-5-6

Secondary 1-2-3-4-5

College 1-2

University from 3 to 8 years

Lol, I was joking.....also it's "good Samaritan"

 

[iamamp3pimp 5,000+ posts]

hahahaha 3th

 

[iamamp3pimp 5,000+ posts]

Well if i could only know the top sheet dimension (the 68 degree 3th grade calcul), I should be fine with the rest

not according to you.

//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Xprime4 10+ year member]

hum... mind you telling me how you did that calcul? dimension might change and i want to be a big boy and recalculat by myselft //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

something to do with sin or cos?

 

[iamamp3pimp 5,000+ posts]

or sketchup....

im no math major either.

 

[thehardknoxlife 10+ year member]

or sketchup....
im no math major either.

You might as well just go ahead and do the whole box. I think. It's going to be a pita getting a port with a reasonable amount of area in that box(the 68 degrees makes things a little harder)......if you don't I might.