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Old 08-12-2012, 02:02 AM
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Default Need help ASAP with absolutely accurate answers

Hahahaha I hope that got someone's attention. I have absolutely NO way to draw anything out so please try to picture this in your mind or draw it out to help. Please? I'm building a box for some subwoofers to go behind my couch & I HATE building boxes plus I kinda suck at it lol. But I'm cheap & I have access to a very good table saw.

Anyway I need to know what to set the saw for these angles.... The back is 18" total in height, the top is 5 1/2" deep & the bottom is a total of 8" deep. The front of the box will go up from the bottom 6" & then angle back to the top. I need to know what angle to set the saw for the cuts on both pieces of the front of the box (baffle) & the top piece. From my math I gather that the total angle of the angled part of the baffle is 270 degrees but I absolutely could be wrong. I had to google to figure it because it's been a loooong time since I went to school & the results could be off.

Think POLYGON or PENTAGON
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Old 08-12-2012, 02:10 AM
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Your angle will be between 0 and 90 degrees.

The way I build my boxes, on this one I would:

1-Cut Back
2-Cut bottom
3-Nail back and bottom together
4-Cut front bottom
5-Nail front bottom on.
6-Cut sides and nail on(For this, cut a peice 18" tall, 8" wide, hold it next to it, get it flush on all sides, mark the angle, then cut it. Make 2 of these pieces.
7-For the last peice, cut it the width of the box, by whatever approximate height to cover from top to bottom, plus an inch. Then hold it over the hole, flush, mark angles.
Then lay it on table and adjust to the angled line by eye.

I've always done it this way and with a little patience it comes out perfect.
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But thanks for chiming in. Your opinion is duly noted.
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Old 08-12-2012, 08:39 AM
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Offset the blade 7.9 degrees and the length will be 18" 11/64ths.

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Old 08-27-2012, 12:18 AM
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Hey guys thank you both for replying. Sorry for not acknowledging it but I've been busy & rarely get on here anymore. Both of you were helpful & both of you didn't quite understand what I was doing but it was my fault for not being able to draw it out or just not being able to describe it well. Anyway I got it figured out & built. It was the cut angles for the top edge of the front baffle. And the angle for the transition on the baffle from the square part of the bottom portion of the baffle to where it angles up.

Here is the box. It took a lot of playing with it but I got all the angles figured out. I'm quite pleased with how it turned out. I bought the woofers for $10 each & they were new. They came out of Lincoln Navigators that were converted to limos. Made by JBL I think. Dual 1.7 ohm & are wired in series parallel for a final 4 ohm load roughly. This box sits behind my couch & blends absolutely perfectly with my main subwoofers. I'm so happy with it



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Old 08-27-2012, 02:03 AM
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Nice man.
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