Is it OK to cut edge off wools?

[jimmieee]

If I cut the edge like an inch, will the absorption drop dramatically? Do you recommend doing this for minimizing panel size?

[PaulP]

Originally Posted by jimmieee

If I cut the edge like an inch, will the absorption drop dramatically?
Do you recommend doing this for minimizing panel size?

While you'd end up with the neatest panel construction I've seen to date
I'm pretty sure it's not worth the trouble, if it is even possible to do. I'm
sure you would not hear the difference in the amount of material.

Keep in mind that panels should be spaced away from the wall so you
don't gain much from squeezing the frame smaller.

Paul P

[jimmieee]

Originally Posted by PaulP

While you'd end up with the neatest panel construction I've seen to date
I'm pretty sure it's not worth the trouble, if it is even possible to do. I'm
sure you would not hear the difference in the amount of material.

Keep in mind that panels should be spaced away from the wall so you
don't gain much from squeezing the frame smaller.

Paul P

Thanks Paul,

I'm making them small and easy to mount on both wall/stand for portability
so how many inches at least for the gap? Can it be done by using longer hooks?

Trouble?? Where??

[takman]

its looks good on the computer...unless you get ready to start cutting it and realize its not going to be so easy and not worth the trouble...

my opnion..dont do it..and you are not going to hear the difference.

if the panel is 2" gap it 2"...if its 4" gap it 4"

[jimmieee]

I kinda figured out what you mean "trouble" .. it's the cutting itself right?? Damn just one step close.... Does anyone know how to do it perfectly w/o overcut?

[MrCrowbar]

Just cut out the 4 corners and 2 dents in the middle (as you already have) and don't bother cutting the long edges. You can just squish the wool between the two big frame rectangles. This will hold it in firmly and there will be some air between the wool and fabric, allowing for wrinkle-free upholstering. Otherwise, the wool can bulge in one direction, doesn't look that cool.

See the middle of this thread, that's exactly how it was done there and it looks stunning. This is how I'll be doing my traps, and superchunks for the corners.

[takman]

Originally Posted by jimmieee

I kinda figured out what you mean "trouble" .. it's the cutting itself right?? Damn just one step close.... Does anyone know how to do it perfectly w/o overcut?

you can either cut it two ways...

with a utility knife/razor blade etc..

with an electric carving knife...

i used the electric knife, and it works very well for cutting into the face/depth of the material...

trying to cut into the material length or width wise(from the edges)...if you can you can understand that....is difficult

I like your idea...but when you have say a lot of bass traps to make, this will add a whole a lot of extra time and will be very tedious...

[jimmieee]

I've come up w/ this

1) Cut all edges off by 1 inch
2) Put wools into the frame
3) Use what remain, trim, and slide them into slots (Not slutz!!!!)
4) Cover w/ fabric as TIGHT as possible

Sounds good huh??

[Glenn Kuras]

That might just work. thumbsup

[MrCrowbar]

Originally Posted by jimmieee

I've come up w/ this

1) Cut all edges off by 1 inch
2) Put wools into the frame
3) Use what remain, trim, and slide them into slots (Not slutz!!!!)
4) Cover w/ fabric as TIGHT as possible

Sounds good huh??

Won't work. There's nothing holding the wool inside the frame now. It would just fall out and possibly tear up the fabric on it's way out of the frame.




Just cut out the 4 corners and the 2 notches in the middle and sandwich it all between the 2 frame rectangles.

Or: cut nothing off the wool, just make the frame a bit bigger and add some threads, tape or piano wire (i used chainlink fence to visualize better) to keep the wool from falling out the big opening. It will only make the whole thing a bit wider, but just by the thickness of your frame. You can use the free space to place your mounting system so you can attach it to the wall at a distance.

Like this:

[takman]

Originally Posted by MrCrowbar

Won't work. There's nothing holding the wool inside the frame now. It would just fall out and possibly tear up the fabric on it's way out of the frame. Just cut out the 4 corners and the 2 notches in the middle and sandwich it all between the 2 frame rectangles.

Or: cut nothing off the wool, just make the frame a bit bigger and add some threads, tape or piano wire to keep the wool from falling out the big opening. It will only make the whole thing a bit bigger, but just by the thickness of your frame.

actually it will work...at least i think we are talking about the same thing here..

setting aside whats hes proposing.....

before i built my traps, i thought i had to have something to keep the rockwool from falling out...you dont actually ( ceiling cloud is a little bit different in this case)

You just build the frame slightly smaller than the size of rockwool you are using...and that with the fabric, the rockwool isnt going anywhere...plus with mine, things like the brackets and screws i used in the interior of the frame added to keeping the rockwool in place...when you put the rockwool in, its a press fit.

in a few of my 4" traps, the fabric is only slighlty pushed out a bit from the weight of the insulation....( its actually kind of looks nice)

plus the insulation doesnt weigh that much....

if you want to add some support to the rockwoo ( brackets/wires whatever), then thats fine...but the only thing holding the insulation in.....in all my traps is the undersized frame and fabric....

[MrCrowbar]

Originally Posted by takman

actually it will work...at least i think we are talking about the same thing here..

setting aside whats hes proposing.....

before i built my traps, i thought i had to have something to keep the rockwool from falling out...you dont actually ( ceiling cloud is a little bit different in this case)

You just build the frame slightly smaller than the size of rockwool you are using...and that with the fabric, the rockwool isnt going anywhere...plus with mine, things like the brackets and screws i used in the interior of the frame added to keeping the rockwool in place...when you put the rockwool in, its a press fit.

in a few of my 4" traps, the fabric is only slighlty pushed out a bit from the weight of the insulation....( its actually kind of looks nice)

plus the insulation doesnt weigh that much....

if you want to add some support to the rockwoo ( brackets/wires whatever), then thats fine...but the only thing holding the insulation in.....in all my traps is the undersized frame and fabric....

Good to know, thanks. I guess it depends on the rockwool density you're using. I will probably use FlexCL instead of rockwool for health reasons, and that flexCL stuff seems to be quite floppy compared to your average rockwool.

[jimmieee]

Thanks guys you really inspired me a lot

My freind built some 2'x2' panels for me b4.(just 2 wools put on a square frame and covered with fabric) It held pretty well so I'm not worried if the wool's gonna fall off, but the downside is it looked like Santa wearing super tight mini T-shirt....coz w/o upper frame, the tighter you nail fabrics the more squeezed and outta shape it could be... That's why I decided to build a more complete frame this time.