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Re: 3 PI build [message #79119 is a reply to message #79058]

Tue, 28 January 2014 17:08

BFP
Messages: 48
Registered: May 2009

Baron

Got all the braces and the bottom of the speaker volume installed. Putting the bracing in really stiffens the panels. You can hear the difference when you do a knuckle rap test on the sides. The resonance of the panels is much higher in frequency after they are braced.

In addition to the shelf braces I also glued in stick bracing vertically on the sides as well as across the top and bottom.
index.php?t=getfile&id=1389&private=0

A few posts back Bill asked how I was going to hold the crossover board from vibrating. The rear is securely fastened to the cabinet back. I could put T nuts in the front of the board and bolt it down from the underneath. This would be awkward for removing the board. I decided to hold it down in the front using some spring steel clips I had in my junk box. They fit under a cleat attached to the back side of the baffle and hold the board down onto the bottom of the box. This should do the trick. If not I can always bolt them down.

Heres the clips mounted on the front side of one of the boards.
index.php?t=getfile&id=1390&private=0

Here is the board up against the cleat before seating it . The cleat has a 30degree slope on the bottom to help ease seating the board.
index.php?t=getfile&id=1391&private=0

And here it is seated. The amount of force needed to seat the board is not that great but definitely holds it securely to the bottom of the box.
index.php?t=getfile&id=1392&private=0

Next up will be putting he backs on the boxes.

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[Message index]

		3 PI build By: BFP on Thu, 16 January 2014 14:58
		Re: 3 PI build By: BFP on Thu, 16 January 2014 19:08
		Re: 3 PI build By: BFP on Sun, 19 January 2014 16:27
		Re: 3 PI build By: Bill Epstein on Sun, 19 January 2014 17:31
		Re: 3 PI build By: BFP on Mon, 20 January 2014 10:07
		Re: 3 PI build By: BFP on Tue, 21 January 2014 10:43
		Re: 3 PI build By: BFP on Wed, 22 January 2014 14:37
		Re: 3 PI build By: BFP on Wed, 22 January 2014 14:50
		Re: 3 PI build By: BFP on Thu, 23 January 2014 17:26
		Re: 3 PI build By: tom-m on Thu, 23 January 2014 19:20
		Re: 3 PI build By: BFP on Fri, 24 January 2014 05:15
		Re: 3 PI build By: BFP on Tue, 28 January 2014 17:08
		Re: 3 PI build By: petew on Tue, 28 January 2014 18:18
		Re: 3 PI build By: Matts on Tue, 28 January 2014 19:27
		Re: 3 PI build By: BFP on Tue, 28 January 2014 19:36
		Re: 3 PI build By: Bill Epstein on Tue, 28 January 2014 20:48
		Re: 3 PI build By: BFP on Thu, 30 January 2014 05:05
		Re: 3 PI build By: BFP on Fri, 31 January 2014 17:16
		Re: 3 PI build By: lucasmateo on Sun, 02 February 2014 12:21
		Re: 3 PI build By: BFP on Wed, 05 February 2014 10:01
		Re: 3 PI build By: BFP on Wed, 05 February 2014 10:18
		Re: 3 PI build By: BFP on Wed, 05 February 2014 10:43
		Re: 3 PI build By: BFP on Wed, 05 February 2014 11:10
		Re: 3 PI build By: HPower on Thu, 06 February 2014 10:59
		Re: 3 PI build By: BFP on Fri, 07 February 2014 05:28
		Re: 3 PI build By: HPower on Fri, 07 February 2014 07:49
		Re: 3 PI build By: BFP on Fri, 07 February 2014 08:17
		Re: 3 PI build By: BFP on Wed, 12 February 2014 05:21
		Re: 3 PI build By: BFP on Sun, 16 February 2014 15:03
		Re: 3 PI build By: Wayne Parham on Mon, 17 February 2014 16:52
		Re: 3 PI build By: BFP on Tue, 18 February 2014 10:22
		Re: 3 PI build By: Wayne Parham on Tue, 18 February 2014 16:08
		Re: 3 PI build By: BFP on Sun, 23 February 2014 16:08
		Re: 3 PI build By: BFP on Tue, 11 March 2014 14:35
		Re: 3 PI build By: Wayne Parham on Tue, 11 March 2014 15:08
		Re: 3 PI build By: Michaelzh on Wed, 12 March 2014 07:30
		Re: 3 PI build By: BFP on Wed, 12 March 2014 15:21
		Re: 3 PI build By: BFP on Wed, 12 March 2014 15:12
		Re: 3 PI build By: Michaelzh on Wed, 12 March 2014 19:14
		Re: 3 PI build By: Nick77 on Thu, 13 March 2014 06:33
		Re: 3 PI build By: BFP on Fri, 14 March 2014 10:25

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