How I built my bass traps...

[lukasbrooklyn]

@cojo & everyone who made their own

great job!

about to embark on making my own. one thing i was wondering is how exactly you went about fixing the wood parts. do you reckon standard nails/screws are enough to keep the whole thing stable? i saw some 90-degrees shaped metal plates, but those seem to have been used to secure the rockwool to the wood, right?

thank you.

[AMIEL]

Originally Posted by big country

I use a jig saw . I seen a thread where the cat used a power Knife,
the kind for haking up turkey. I think the jig saw would be best.

Originally Posted by Cojo

Yes.

They use to have them where you buy isolation. Looks like cheep machetas!

Originally Posted by myfipie

A sharp long knife should work fine.

Glenn

Thanks guys!

[A27Hull]

Originally Posted by lukasbrooklyn

about to embark on making my own. one thing i was wondering is how exactly you went about fixing the wood parts. do you reckon standard nails/screws are enough to keep the whole thing stable? i saw some 90-degrees shaped metal plates, but those seem to have been used to secure the rockwool to the wood, right?.

The thinner the wood frame, the less stable,

a 1"x2" will be a lot less stable (structurally) than a 1"x4", 1"x6", or 2"x4".

but if the frame is filled with rockwool, the frame is supported by it.

standard wood screws will work for wood, and there will be less splintering/cracking if you pre-drill the holes.

screws and glue will work better.

I used polyscreen wrap on my standing 2'x8' panels, and combined with the fabric and tight fit of the panel, I am more concerned with the panels falling over than the rock-wool exiting the panels.

keep in mind that these panels aren't meant to be tossed around though...

[dim light]

Originally Posted by big country

how many threads have you had deleted my dim friend

EXIT ONLY!

I don't understand what you mean bro?

If I had moderator rights I would delete the whole forum - we need a new start!

[big country]

http://i136.photobucket.com/albums/q...Picture005.jpg

here is a trap a made some time back . its a variable freq. trap it goes from live to dry with a flip of a switch

[big country]

here it is

no wories dim .

[Cojo]

Originally Posted by lukasbrooklyn

@cojo & everyone who made their own

great job!

about to embark on making my own. one thing i was wondering is how exactly you went about fixing the wood parts. do you reckon standard nails/screws are enough to keep the whole thing stable? i saw some 90-degrees shaped metal plates, but those seem to have been used to secure the rockwool to the wood, right?

thank you.

Hi & thanks!

The frame wood is around 22mm in thickness and I have pre drilled then screwd and glued the frame together. It's not as wobbly as you might think and when the mineral wool is in ther it's actually very stable as A27Hull pointed out.

And yes, the metal 90 degree angles are just there to prevent the insulation from comming out the back!

[Cojo]

Originally Posted by big country

http://i136.photobucket.com/albums/q...Picture005.jpg

here is a trap a made some time back . its a variable freq. trap it goes from live to dry with a flip of a switch

How does that work?

[xmostynx]

my traps are decent, and i used 1x2's. just make sure you use good metal brackets to hold the frames.

anyone know about making a cloud?? i'm off to look for information

[lukasbrooklyn]

Originally Posted by Cojo

Hi & thanks!

The frame wood is around 22mm in thickness and I have pre drilled then screwd and glued the frame together. It's not as wobbly as you might think and when the mineral wool is in ther it's actually very stable as A27Hull pointed out.

And yes, the metal 90 degree angles are just there to prevent the insulation from comming out the back!

cheers

[big country]

Originally Posted by Cojo

How does that work?

when you close it . it traps more of the low freqs. and returns more high
freqs. with a little diffraction . when its open it sponges all the freqs. but the really low freqs.
its the best way to go because you have more options.
plus you can eq. your room with them.

I lost my cord to my camera that goes to the computer
I would show you one that has a painting on the front
it looks supper cool I made it for a distributer in Vegas

[big country]

Originally Posted by xmostynx

my traps are decent, and i used 1x2's. just make sure you use good metal brackets to hold the frames.

anyone know about making a cloud?? i'm off to look for information

the cloud I made is supper simple , four 1 inch pieces of 703 , and a throw

blanket. some long ass screews to attach to the ceiling, some washers.

put your throw blanket on a table , put your 703 on top of your blanket,

get some thread and a needle and go to town . hang it with washers and

your long ass screews. its clean looking and doesnt take alot of space

[Cojo]

Originally Posted by big country

when you close it . it traps more of the low freqs. and returns more high
freqs. with a little diffraction . when its open it sponges all the freqs. but the really low freqs.
its the best way to go because you have more options.
plus you can eq. your room with them.

I lost my cord to my camera that goes to the computer
I would show you one that has a painting on the front
it looks supper cool I made it for a distributer in Vegas

Nice!

[s.d.finley]

Here is a pic of my new studio, still not fully complete, and a new bass trap. Mineral Wool superchunk style 10 feet tall. I used 1"X2"s for the frame and decided to forget the pegboard. I was able to use a trim gun to assemble the frame.

[Glenn Kuras]

Originally Posted by s.d.finley

Here is a pic of my new studio, still not fully complete, and a new bass trap. Mineral Wool superchunk style 10 feet tall. I used 1"X2"s for the frame and decided to forget the pegboard. I was able to use a trim gun to assemble the frame.

Nice job sir!!!!thumbsup

[s.d.finley]

Originally Posted by myfipie

Nice job sir!!!!thumbsup

Thank You!!!

And everyone else on this awesome thread!! I will post more pics later.

[Cojo]

Originally Posted by s.d.finley

Here is a pic of my new studio, still not fully complete, and a new bass trap. Mineral Wool superchunk style 10 feet tall. I used 1"X2"s for the frame and decided to forget the pegboard. I was able to use a trim gun to assemble the frame.

Beutiful!

How did you attach the fabric without any visible nails or staples?

[s.d.finley]

Originally Posted by Cojo

Beutiful!

How did you attach the fabric without any visible nails or staples?

I used a staple gun and stapled the rear of the frame, where the fabric is stretched over.

[Cojo]

Originally Posted by s.d.finley

I used a staple gun and stapled the rear of the frame, where the fabric is stretched over.

Ok. So the frame is freestanding and not screwed to the wall.

[s.d.finley]

Originally Posted by Cojo

Ok. So the frame is freestanding and not screwed to the wall.

I used heavy duty double sided tape to attach the frame to the wall. I may secure the frame differently later. It sounds kinda strange using tape, but it works!!

[Cojo]

Originally Posted by s.d.finley

I used heavy duty double sided tape to attach the frame to the wall. I may secure the frame differently later. It sounds kinda strange using tape, but it works!!

Great! Often the simplest solutions is the best!

[xmostynx]

i'm having a BITCH of a time getting these monitors placed right....

if i run a 60hz tone in my room, i can walk around and feel null spots- and then peaks..
for example- they wall i look at behind my monitors HUGE peak- it freakin' rings so hard it shakes the window-

in the middle of the room DEAD

back wall half of the peak as the front wall.


so i'm looking at a position in the middle of back wall/ middle- but then i'm like almost 3 1/2 feet from my near fields (HS50's)
is this too far? i mean- the music i listened to sounded so much bigger- but then again- so little bass. very thin...i'm lost..

this was the spot where the 'happy' medium was between the nulls/peaks.
i'm to the point of thinking this room eq' software is flawed... maybe i need a better test mic.

maybe i should just trust my ears..glen...ethan? whats up.

ethan i've been reading your website religously and i still can't seem to overcome these nulls at 60 and 120-

help guys!

[parsley]

Originally Posted by xmostynx

i'm having a BITCH of a time getting these monitors placed right....

if i run a 60hz tone in my room, i can walk around and feel null spots- and then peaks..
for example- they wall i look at behind my monitors HUGE peak- it freakin' rings so hard it shakes the window-

I'm guessing this is a "I canna change the laws of physics captain". If your head is a fixed fraction of a wavelength from the wall (quarter I think, for a half wavelength round trip) and there's not much absorption then the reflected wave will cancel the incoming there. If you're half a wavelength away the reflected and incoming will add constructively.

I don't know what's done practically to avoid this... beyond having weak reflections (absorbing barriers - broadband absorbers - in front of the walls). I'm having a go with rockwool bass traps / speaker placement at the moment. I did find that adding blocks of rockwool actually increased bass sometimes at the measurement point - as I think it talks about on Ethan's site - presumably by weakening the destructive interference. The room feels a bit dead now though, but music sounds clear.

[monkeyxx]

here's my bass-monster... I call it "the monolith"

(6 stacked bales of R-13 insulation draped in only the finest of white sheets!)

def. made a difference in bass clarity in my room




on my rear wall there's a 4" thick mattress mounted, as well as a sheet of plywood at an angle to break up the side walls... I think the mattress is good for doing vocals in front of more than trapping much bass in the front end of the room

[Glenn Kuras]

Originally Posted by monkeyxx

here's my bass-monster... I call it "the monolith"

(6 stacked bales of R-13 insulation draped in only the finest of white sheets!)

def. made a difference in bass clarity in my room




on my rear wall there's a 4" thick mattress mounted, as well as a sheet of plywood at an angle to break up the side walls... I think the mattress is good for doing vocals in front of more than trapping much bass in the front end of the room

My girlfriend got excited when she looked at it!!!!!!

Should work pretty well!

Glenn

[Glenn Kuras]

Originally Posted by xmostynx

i'm having a BITCH of a time getting these monitors placed right....

if i run a 60hz tone in my room, i can walk around and feel null spots- and then peaks..
for example- they wall i look at behind my monitors HUGE peak- it freakin' rings so hard it shakes the window-

in the middle of the room DEAD

back wall half of the peak as the front wall.


so i'm looking at a position in the middle of back wall/ middle- but then i'm like almost 3 1/2 feet from my near fields (HS50's)
is this too far? i mean- the music i listened to sounded so much bigger- but then again- so little bass. very thin...i'm lost..

this was the spot where the 'happy' medium was between the nulls/peaks.
i'm to the point of thinking this room eq' software is flawed... maybe i need a better test mic.

maybe i should just trust my ears..glen...ethan? whats up.

ethan i've been reading your website religously and i still can't seem to overcome these nulls at 60 and 120-

help guys!

It sounds like to me you are going to need more bass traps. I tried to find the post with how many you made and what spots in the room they are, but could not find the post.

Let me know and lets see what we can come up with.

Glenn

[Wholyroly]

Beautiful traps gang!

I've been reading this thread completely over the last 2 days as well as Ethan Whiners "acoustic treatment and design for recording stuidos". I picked up most of it but from what I understand, My 9x11 room is too small for treatment and is better off deadened...is this the case?

I'm dying to build and come up with a trap design myself and have already been to the hardware store. The only thing I could find here on Vancouver Island is the Roxul sheet rock 4 and 6 inch.

Considering my room size would you mind recommending some trap design features that I need to consider. ie:

I still dont know if I should put a plywood backing on it or just polyester cloth in the front as well as the back?

I noticed in cojos later designs that there is not a lot of wood left after hes finished with the jig saw, just a thought, but how would building a frame out of 1x1's work, it seems to me that after all the cuttiing it looks like that is about what the size of the wood left is and 1x1 frame construction would save a lot of time and effort as well as wood waste. Mind you, they would not be as pleasing to look at as his.

thx in advance, Roly

[Melodioso]

Hi Wholyroly,

The only thing I could find here on Vancouver Island is the Roxul sheet rock 4 and 6 inch

You can use either fiberglass or rockwool, what's important is that its density should be at least 3 pcf (48 kg/m3). Between 3 and 6 pcf (48-96 kg/m3) you are fine.

I still dont know if I should put a plywood backing on it or just polyester cloth in the front as well as the back

Cloth in the front as well as in the back.

I noticed in cojos later designs that there is not a lot of wood left after hes finished with the jig saw, just a thought, but how would building a frame out of 1x1's work, it seems to me that after all the cuttiing it looks like that is about what the size of the wood left is and 1x1 frame construction would save a lot of time and effort as well as wood waste. Mind you, they would not be as pleasing to look at as his.

I'm currently building basstraps. The wood frame is as minimal as possible to offer maximum exposure to the fiberglass, but must still be solid enough... Also, I don't want to spend much time on the DYI, so the design is very simple with cloth all around it.

Hope this helps.

Mel

[HananR]

dope! thanks for putting these pics up man!

[Glenn Kuras]

Originally Posted by Melodioso

Hi Wholyroly,



You can use either fiberglass or rockwool, what's important is that its density should be at least 3 pcf (48 kg/m3). Between 3 and 6 pcf (48-96 kg/m3) you are fine.



Cloth in the front as well as in the back.



I'm currently building basstraps. The wood frame is as minimal as possible to offer maximum exposure to the fiberglass, but must still be solid enough... Also, I don't want to spend much time on the DYI, so the design is very simple with cloth all around it.

Hope this helps.

Mel

Also just to add to that, if you can not find the fiber glass or the mineral wool in 4" or 6" then look for it as 1" or 2". You can just stack them together to make a thicker panel.

glenn