Another acoustic panel...

[Glenn Kuras]

wow those look super cool!! Great job and I bet they will work very well in your room.

[Weasel9992]

Love it!

Frank

[Smithcok]

Thanks! I appreciate the feedback from the pros

I just finished up the last of my black fabric. I've got bright walls in the room, but anymore and its going to turn into a black hole...

Really flattening out in here though - walking around with filtered pink noise and/or sine tones on really helped me hear the progression of the room (much less of a difference between modal resonances)

[embrionic]

I like the design of this very much, nice work.

I was working on something similar where the back of the OC703 is hidden behind the fabric so the panel kind of "floats" off the front. Very cool effect. But I was going for maximum exposure of the rigid fiberglass and I was never happy with the structural integrity so I abandoned it...

Is the long side of your design a solid piece of wood or is the fiberglass exposed along that edge?

[Smithcok]

^^You can kind of see if from the back picture - I used a jigsaw to cut three big rectangles out of each of the long sides. It adds over 2 sq. ft of additional insulation exposure, so it should be at least somewhat effective.

Luckily, its very strong even though I cut the rectangles out. Cutting them out also helped on weight. This thing will be pretty easy to hang on the wall, but every bit of weight shedding will help...

[embrionic]

Originally Posted by Smithcok

^^You can kind of see if from the back picture - I used a jigsaw to cut three big rectangles out of each of the long sides. It adds over 2 sq. ft of additional insulation exposure, so it should be at least somewhat effective.

Luckily, its very strong even though I cut the rectangles out. Cutting them out also helped on weight. This thing will be pretty easy to hang on the wall, but every bit of weight shedding will help...

Ah yes, looking carefully again I can see now. Your design works because the side is still all one solid piece. Our's failed because it was all 1 x 2, separate pieces front and back of frame, and we could not figure out the "float" in a way that wasn't a huge pain and was strong enough. Here is what we came up with a pic of our first prototype from last weekend before we built a bunch of these.

It is:

Very light
Very strong
Uses a minimum of materials (1x2 pine / Glue / 8 sheetrock screws, Covering fabric / insulation)
Pretty Easy/Fast to construct

I can post a more detailed build with instruction of these when I get some time.

If I had the time I would build yours, they really look nicer to me but these are going to work just fine. I still prefer the hidden frame in the back.

For our design the insulation is exposed in all four sides and the standoffs not only hold the frame together but create a solid mounting point for the wall and build in an automatic 2 inch air gap. The material itself holds the insulation in and the back is also covered to keep dust/fibers down. :-)

The fabric is FR701 "medium Gray" (thanks Frank!)
Sorry about the crummy pic.

james