batsbrew
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clintmartin
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Re: DIY DIFFUSORS
2013/12/18 19:10:35
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Pretty interesting read. I'm hoping my ARC 2 purchase will help me. I'd have to make a bunch of these things.
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The Band19 
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Re: DIY DIFFUSORS
2013/12/19 06:09:54
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Will these work to defuse a bomb? Or is this a different type of defuser?
Sittin downtown in a railway station one toke over the line.
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Guitarhacker
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Re: DIY DIFFUSORS
2013/12/19 09:01:34
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Interesting project. Done right, it could be decorative as well.
My website & music: www.herbhartley.com MC4/5/6/X1e.c, on a Custom DAW Focusrite Firewire Saffire Interface BMI/NSAI "Just as the blade chooses the warrior, so too, the song chooses the writer "
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bitflipper
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Re: DIY DIFFUSORS
2013/12/19 10:07:19
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Makes for a cool-looking decoration in your studio.
 All else is in doubt, so this is the truth I cling to. My Stuff
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dstrenz
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Re: DIY DIFFUSORS
2013/12/19 10:33:30
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That IS a cool idea. The construction is questionable though. Gluing the end grain of the studs to masonite or hardboard is not a reliable joint. They're bound to fall off eventually as the wood expands/contracts. Epoxy would probably work better. But eliminating the masonite/hardboard completely and edge gluing the pieces together would be very reliable, (but not with paint in the joint).
He says balsa can be substituted. My question is, would foam insulation work, or is the density of the material critical? That would make this a much simpler project.
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rumleymusic
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Re: DIY DIFFUSORS
2013/12/19 11:17:17
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Styrofoam is perfectly acceptable for diffusion, as long as it is not an soft, open cell type. Density is not really an issues since these only work on high frequencies to begin with.
If you are interested in making your own a free tool called "QRDude" is really useful for making custom 1d and 2d panels.
You can find much higher quality 1 1/4" square white pine at Home Depot. A little more expensive, but worth it for looks. It is a good idea to glue the edges of the bars as you insert them.
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IK Obi
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Re: DIY DIFFUSORS
2013/12/19 11:26:46
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dstrenz
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Re: DIY DIFFUSORS
2013/12/19 13:11:45
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rumleymusic
Styrofoam is perfectly acceptable for diffusion, as long as it is not an soft, open cell type. Density is not really an issues since these only work on high frequencies to begin with.
If you are interested in making your own a free tool called "QRDude" is really useful for making custom 1d and 2d panels.
You can find much higher quality 1 1/4" square white pine at Home Depot. A little more expensive, but worth it for looks. It is a good idea to glue the edges of the bars as you insert them.
Thanks for the info. QRDude looks very useful. The insulation they put outside basement blocks is the stuff I'm thinking of. Something like this: http://www.homedepot.com/p/Owens-Corning-FOAMULAR-250-2-in-x-2-ft-x-8-ft-Tongue-and-Groove-Foam-24DD/100320335#product_description I've been doing woodworking 7 days a week since Thanksgiving, even worked 24hrs straight 2 days ago with help to fulfill orders, so another wood project is the farthest thing from my mind right now. I can get 4/4 basswood for $.50/bf which is pretty light and butternut for about the same price from an Amish mill. Everything is expensive at HD. But, ugh.. maybe in a few weeks.
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dstrenz
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Re: DIY DIFFUSORS
2013/12/19 13:17:18
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IK Obi
Why not screw them in?
Because it would take 144 screws per panel plus countersinking and pilot holes. Screws don't hold very well in end grain either, but it should be okay for something like this with such little stress. It would be easier to just glue the pieces together.
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sharke
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Re: DIY DIFFUSORS
2013/12/19 13:17:43
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A little OT but does anyone have any experience with Green Glue?
JamesWindows 10, Sonar SPlat (64-bit), Intel i7-4930K, 32GB RAM, RME Babyface, AKAI MPK Mini, Roland A-800 Pro, Focusrite VRM Box, Komplete 10 Ultimate, 2012 American Telecaster!
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IK Obi
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Re: DIY DIFFUSORS
2013/12/19 14:42:40
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dstrenz
IK Obi
Why not screw them in?
Because it would take 144 screws per panel plus countersinking and pilot holes. Screws don't hold very well in end grain either, but it should be okay for something like this with such little stress. It would be easier to just glue the pieces together.
Good point, thanks for that. I think I'm going to try to make one of these in the next year.
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batsbrew
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Re: DIY DIFFUSORS
2013/12/19 17:40:14
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sharke
A little OT but does anyone have any experience with Green Glue?
green glue, is for joining sections for soundproofing, is very expensive, and would be the wrong choice for doing basic glue duty.
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sharke
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Re: DIY DIFFUSORS
2013/12/20 01:59:46
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batsbrew
sharke
A little OT but does anyone have any experience with Green Glue?
green glue, is for joining sections for soundproofing, is very expensive, and would be the wrong choice for doing basic glue duty.
Yeah I'm not thinking about its use as a basic glue, that's why I said it was a little OT. I just wondered if anyone had any experience with it for basic soundproofing.
JamesWindows 10, Sonar SPlat (64-bit), Intel i7-4930K, 32GB RAM, RME Babyface, AKAI MPK Mini, Roland A-800 Pro, Focusrite VRM Box, Komplete 10 Ultimate, 2012 American Telecaster!
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batsbrew
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Re: DIY DIFFUSORS
2013/12/20 16:05:28
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yes, it works great for what it is designed for.
but not for a diffusor
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bluzdog
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Re: DIY DIFFUSORS
2013/12/31 11:20:23
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jm24
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Re: DIY DIFFUSORS
2014/09/26 19:20:01
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tagruvto
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Re: DIY DIFFUSORS
2014/10/10 08:28:48
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Yeah - an older thread, but a cool subject. Anyways, if you're interested in making diffusers I would suggest you use PL Premium Polyurethane Construction Adhesive. This stuff is amazingly strong - and will fill a gap or void quite well too. I've used this stuff to build a bass speaker cabinet and am currently building some sound absorption panels and continue to be amazed at how strong this stuff is. ... and no, I am not affiliated in any way to Loctite. 
i7-4770 CPU @3.40 GHZ 16.0 GB RAM Widows 10 64-bit SONAR Platinum Focusrite Scarlett 18i20
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