Holey Brace Design

901Fixer · 4th July 2009, 04:51 AM

This is what I have come up with in the spirit of what suggestions and pictures I've seen here and trying to avoid symetricalness and even measurements. I'm not sure how much more needs to be removed from around the basket and magnet area if any. The holey brace is lined up with the basket frame.

badman · 4th July 2009, 05:08 AM

Crimony!

I take it that's a sub? VERY nice work. You're in very good shape.

901Fixer · 4th July 2009, 05:12 AM

I'm building two 6cuft enclosures for some Selenium 15PW3 ProStyle woofers. Is it ok that the brace is so close to the basket or should I relieve some of that area?

Moondog55 · 4th July 2009, 05:36 AM

Very nicely done indeed.

Some people advocate using bracing and support around the magnet itself, a tightly fitting hole, to take some of the strain away from the front baffle.
Haven't had the skill or patience to try it myself, from the picture you certainly appear to have the relevant skill and patience.
Good work

planet10 · 4th July 2009, 06:34 AM

Very pretty.

I do like to have a bridge directly from the back of the driver to the back of the box that is solid.

Yours has a pretty sturdy looking split bridge which is probably just fine for a sub.

dave

Brett · 4th July 2009, 07:13 AM

It's very elaborate work, not really necessary. I just cut holes or rectangles. Agree with Dave re a solid brace to the rear.

901Fixer · 4th July 2009, 04:32 PM

The hole directly behind the magnet is for the voice coil vent in the center. The rest of the design was done mostly freehand to keep it irregular.

Ron E · 5th July 2009, 01:42 AM

If you mount directly to the magnet, I would suggest compressing some rubber or something there, or perhaps some dots of silicone, to reduce the chance of rattles with expansion/contraction.

901Fixer · 5th July 2009, 03:15 AM

So when I install the woofer for the last time put a little silicon where it will meet the brace to keep everything a little snugger and hopefully prevent any rattles? There isn't enough room to compress any weather stripping.

Moondog55 · 5th July 2009, 03:20 AM

If you put a little petroleum jelly on the woofer magnet it may help in the removal process.

Unless; of course; you definitely want this to be permanent

4th July 2009, 05:08 AM	#2
badman Custom Title diyAudio Member Join Date: Sep 2003 Location: Sunny Tustin, SoCal	Crimony! I take it that's a sub? VERY nice work. You're in very good shape. __________________ I write for www.enjoythemusic.com in the DIY section. You may find yourself getting a preview of a project in-progress. Be warned!

4th July 2009, 05:36 AM	#4
Moondog55 diyAudio Member Join Date: Jun 2007 Location: Norlane; Geelong: Victoria: Australia	Very nicely done indeed. Some people advocate using bracing and support around the magnet itself, a tightly fitting hole, to take some of the strain away from the front baffle. Haven't had the skill or patience to try it myself, from the picture you certainly appear to have the relevant skill and patience. Good work __________________ QUOTE" The more I know, the more I know, I know (insert maniacal laugh >here<) NOTHING"

4th July 2009, 06:34 AM	#5
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	Very pretty. I do like to have a bridge directly from the back of the driver to the back of the box that is solid. Yours has a pretty sturdy looking split bridge which is probably just fine for a sub. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

5th July 2009, 01:42 AM	#8
Ron E diyAudio Member Join Date: Jun 2002 Location: USA, MN	If you mount directly to the magnet, I would suggest compressing some rubber or something there, or perhaps some dots of silicone, to reduce the chance of rattles with expansion/contraction. __________________ Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan Science is a way of thinking much more than it is a body of knowledge. --Carl Sagan

5th July 2009, 03:20 AM	#10
Moondog55 diyAudio Member Join Date: Jun 2007 Location: Norlane; Geelong: Victoria: Australia	If you put a little petroleum jelly on the woofer magnet it may help in the removal process. Unless; of course; you definitely want this to be permanent __________________ QUOTE" The more I know, the more I know, I know (insert maniacal laugh >here<) NOTHING"


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4th July 2009, 07:13 AM	#6
Brett diyAudio Member Join Date: Jan 2002	It's very elaborate work, not really necessary. I just cut holes or rectangles. Agree with Dave re a solid brace to the rear.

4th July 2009, 04:32 PM	#7
901Fixer diyAudio Member Join Date: Dec 2008 Location: Knoxville, TN	The hole directly behind the magnet is for the voice coil vent in the center. The rest of the design was done mostly freehand to keep it irregular.

5th July 2009, 03:15 AM	#9
901Fixer diyAudio Member Join Date: Dec 2008 Location: Knoxville, TN	So when I install the woofer for the last time put a little silicon where it will meet the brace to keep everything a little snugger and hopefully prevent any rattles? There isn't enough room to compress any weather stripping.

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