Author Topic: Foam Surround Punctured (Read 10379 times)

Gino · « **Reply #30 on:** Oct 28, 2014 at 11:41 PM »

Elmers should work. I'd tack or spot glue multiple times at the back rather than running a steady stream on the edges. Elmers is quite flexible. If you study the mechanica of the repair area. You won't be flexing the glued edges. The rubber around it will do the flexing. That is also why I revommend spot gluing as in maliit na drops at the back. I don't like a hlue line yo show in front.

qguy · « **Reply #31 on:** Oct 29, 2014 at 05:49 AM »

I make leather bags for cue stics, I use contact cements for sections where the leather needs to flex.
I use Elmers glue/White Glue/PVA glue when I need the leather to be stiff.

I have seen the hole and you need to join the edges where the screwdriver made the hole, basically you would be putting glue on the inside part of the surround which is difficult when using contact cement.

I would try using contact cement but I would not let it dry and just simply bond the two surfaces while the glue is still wet

Suggestion : buy a new surround, puncture it and practice the suggestions posted by the members here

Quote from: JojoD818 on Oct 28, 2014 at 10:09 PM

Anong brand at saan nakakabili niyan sinasabi mo flexible glue? Might come in handy even with fabrics.

Btw, have you tried using Elmer's glue? The all-purpose white glue really isn't that hard.

Have you even seen the intended application? Wala naman two pieces to join there eh, it's just a small rip in the surround that needs patching up.

tony · « **Reply #32 on:** Oct 29, 2014 at 07:06 AM »

Quote

Suggestion : buy a new surround, puncture it and practice the suggestions posted by the members here

+1...surrounds are cheap to buy, experience, priceless...

also when mounting speakers, mark the holes using your speaker as template with a pencil,
then drill holes that are smaller in diameter than the screw you will be using...
that way you can screw down your speakers easily, use a motorized screwdriver if you can...

Nelson de Leon · « **Reply #33 on:** Oct 29, 2014 at 07:56 AM »

Quote from: tony on Oct 29, 2014 at 07:06 AM

+1...surrounds are cheap to buy, experience, priceless...

also when mounting speakers, mark the holes using your speaker as template with a pencil,
then drill holes that are smaller in diameter than the screw you will be using...
that way you can screw down your speakers easily, use a motorized screwdriver if you can...

Jan nga nadale ang surrounds ng speakers ko.

qguy · « **Reply #34 on:** Oct 29, 2014 at 08:13 AM »

ako noong high school pa ako, yung sealed midrange driver, ginawa kong ported

.. I just sealed it with Scotch tape.

qguy · « **Reply #35 on:** Oct 29, 2014 at 08:13 AM »

What is the advantage of using a motorized screwdriver ?

Quote from: tony on Oct 29, 2014 at 07:06 AM

use a motorized screwdriver if you can...

tony · « **Reply #36 on:** Oct 29, 2014 at 10:15 AM »

Quote from: qguy on Oct 29, 2014 at 08:13 AM

What is the advantage of using a motorized screwdriver ?

hindi hirap yung kamay mo, medyo me katamaran ako eh....

depende rin kasi sa pulso mo, hindi ka dapat gigil sa pag twerka...

tony · « **Reply #37 on:** Oct 29, 2014 at 10:17 AM »

Quote from: Nelson de Leon on Oct 29, 2014 at 07:56 AM

Jan nga nadale ang surrounds ng speakers ko.

ikaw lang ba?

ako rin ah, ako naman sa screw driver kaya payo ko motorized....
we all learn lesson from our mistakes, some mistakes are costly,
sometimes pride mo lang ang nawala...

JojoD818 · « **Reply #38 on:** Oct 29, 2014 at 02:05 PM »

Quote from: qguy on Oct 29, 2014 at 05:49 AM

I make leather bags for cue stics, I use contact cements for sections where the leather needs to flex.
I use Elmers glue/White Glue/PVA glue when I need the leather to be stiff.

I have seen the hole and you need to join the edges where the screwdriver made the hole, basically you would be putting glue on the inside part of the surround which is difficult when using contact cement.

I would try using contact cement but I would not let it dry and just simply bond the two surfaces while the glue is still wet

Suggestion : buy a new surround, puncture it and practice the suggestions posted by the members here

So ano yun flexible glue? Contact cement?

Anyway, the reason I suggested using a syringe to apply the glue, flexible glue, silicone, rice, etc is because it can go places where no man's finger can go and should offer a bit of control and precision in applying the glue.

JojoD818 · « **Reply #39 on:** Oct 29, 2014 at 02:07 PM »

Ah wala kayo sa lolo ko... binrenahan muna niya ng maliit na pilot hole yun butas bago nilagay ang screw...

ABCmotorparts · « **Reply #40 on:** Oct 29, 2014 at 02:15 PM »

Quote from: JojoD818 on Oct 29, 2014 at 02:07 PM

Ah wala kayo sa lolo ko... binrenahan muna niya ng maliit na pilot hole yun butas bago nilagay ang screw...

Mismo,..!
My dad thought me that,...
Great tip sir,..

JojoD818 · « **Reply #41 on:** Oct 29, 2014 at 02:37 PM »

Quote from: ABCmotorparts on Oct 29, 2014 at 02:15 PM

Mismo,..!
My dad thought me that,...
Great tip sir,..

May center punch pa gamit ang lolo ko sir bago siya mag drill ng pilot hole. Para daw hindi "maglakad" yun drill bit.

Paminsan-minsan mainam yun nakikinig sa mga matatanda, lolo mo man o hindi, tiyak may mapupulot ka. Iba na kasi ang mga kabataan ngayon eh, puro glue at rugby ang laman ng isip.

Note: The rugby mentality I'm referring to is the common way of thinking in these lines... "Meron naman glue o rugby pandikit pag napunit". What's missing is they can actually avoid making the mistake of puncturing their work so they don't need the rugby anymore.

JojoD818 · « **Reply #42 on:** Oct 29, 2014 at 02:43 PM »

Lubusin na natin...

Another thing I learned from observing how brand name manufacturers install their drivers is the use of hex or allen head hi-lo self-tapping screws like these...

Available at your suking To Suy. Works well with solidwood, plywood, particle board, and mdf boards. With a pre-drilled pilot hole, siguradong walang kabyos.

markcrenz · « **Reply #43 on:** Oct 29, 2014 at 06:57 PM »

Gawa na ba? I second the elmers glue suggestion. Don't forget to massage the torn portion back in place before dabbing glue at the underside. With a bit of skill (and luck) the tear could be untraceable after the repair. Recommend ko rin use T-nuts to install the driver lalo na kung tanggal-kabit while tuning the box.

qguy · « **Reply #44 on:** Oct 29, 2014 at 08:47 PM »

Yes, Contact cement is flexible

Quote from: JojoD818 on Oct 29, 2014 at 02:05 PM

So ano yun flexible glue? Contact cement?

Gino · « **Reply #45 on:** Oct 29, 2014 at 09:18 PM »

Contact cement is flexible but it darkens, dries up, and peels after a few months.

White glue or wood glue stays as is for years. Don't fuzz over white glue's stiffness,. The thin layer of repaired area is not required to flex. Gluing in small dots allows foam in between to flex. That is why I do not recommend a straight bead. No glue goes between the edges. Just tack it with spots at the back for support. All this will do is align the edges for cosmetics.

qguy · « **Reply #46 on:** Oct 29, 2014 at 10:25 PM »

Depende sa contact cement, the ones I used are still intact after more than ten years.

Quote from: Gino on Oct 29, 2014 at 09:18 PM

Contact cement is flexible but it darkens, dries up, and peels after a few months.

White glue or wood glue stays as is for years. Don't fuzz over white glue's stiffness,. The thin layer of repaired area is not required to flex. Gluing in small dots allows foam in between to flex. That is why I do not recommend a straight bead. No glue goes between the edges. Just tack it with spots at the back for support. All this will do is align the edges for cosmetics.

JojoD818 · « **Reply #47 on:** Oct 29, 2014 at 10:33 PM »

Quote from: markcrenz on Oct 29, 2014 at 06:57 PM

Gawa na ba? I second the elmers glue suggestion. Don't forget to massage the torn portion back in place before dabbing glue at the underside. With a bit of skill (and luck) the tear could be untraceable after the repair. Recommend ko rin use T-nuts to install the driver lalo na kung tanggal-kabit while tuning the box.

Don Mark, gusto ko yan massage brader... pero wag glue ha...

Seriously, speaker diyer's friend ang T-nuts. Especially sa subwoofers naku napaka useful.

audiojunkie · « **Reply #48 on:** Oct 30, 2014 at 04:52 AM »

Quote from: JojoD818 on Oct 29, 2014 at 02:07 PM

Ah wala kayo sa lolo ko... binrenahan muna niya ng maliit na pilot hole yun butas bago nilagay ang screw...

Ginagawa ko rin yan, una pilot hole guide ng pako then barena na maliit sa screw diameter, lalo na mid & tweeter drivers. Sa woofer kailangan through hole at T-nut ang lock. For safety at maiwasan ang aksidente, nakatakip ang cone while screwing... i mean tightening the screw.

Dami na ng options for consideration... Mas Ok nga yung spot joint ng edges sa likod para hindi mag bleed yung glue sa front side.. At syempre massage muna para smooth pagsinalat...

ABCmotorparts · « **Reply #49 on:** Oct 30, 2014 at 06:19 AM »

Kitang kita ang mga OC at mga maseselan dito talaga

tony · « **Reply #50 on:** Oct 30, 2014 at 06:36 AM »

kung sa akin yan, palit ang buong suround....mahirap kung patse patse ang trabaho....

larokulit · « **Reply #51 on:** Oct 30, 2014 at 06:59 AM »

Quote from: JojoD818 on Oct 29, 2014 at 10:33 PM

Don Mark, gusto ko yan massage brader... pero wag glue ha...

Seriously, speaker diyer's friend ang T-nuts. Especially sa subwoofers naku napaka useful.

+1 sa t-nut lalo ba pag MDF ang baffle -- ambilis lumuhhhwahhhg ang butas pag tanggal-kabit.

remington · « **Reply #52 on:** Oct 30, 2014 at 08:41 AM »

Quote from: JojoD818 on Oct 29, 2014 at 02:43 PM

Lubusin na natin...

Another thing I learned from observing how brand name manufacturers install their drivers is the use of hex or allen head hi-lo self-tapping screws like these...

Available at your suking To Suy. Works well with solidwood, plywood, particle board, and mdf boards. With a pre-drilled pilot hole, siguradong walang kabyos.

saang To Suy kaya meron nito sir? ang tagal ko nang naghahanap nito wala ako makita pati sa mga bolts and nuts na tindahan. Meron sila hindi self tapping yung hindi matulis

JojoD818 · « **Reply #53 on:** Oct 30, 2014 at 08:46 AM »

Quote from: remington on Oct 30, 2014 at 08:41 AM

saang To Suy kaya meron nito sir? ang tagal ko nang naghahanap nito wala ako makita pati sa mga bolts and nuts na tindahan. Meron sila hindi self tapping yung hindi matulis

Sa Maynila po sir remington. Along Tomas Mapua kakabili ko lang last Tuesday ng Philips head. Along Recto meron din sir malaking To Suy doon na nabilhan ko na dati.

JojoD818 · « **Reply #54 on:** Oct 30, 2014 at 08:52 AM »

Bought last Tuesday at bolts and nuts shops along Tomas Mapua corner Recto...

JoeyGS · « **Reply #55 on:** Oct 30, 2014 at 10:13 AM »

Brader sayang! Kailangan ko niyan! Next time mapunta ka, idamay mo ako ha.

Quote from: JojoD818 on Oct 30, 2014 at 08:52 AM

Bought last Tuesday at bolts and nuts shops along Tomas Mapua corner Recto...

Gino · « **Reply #56 on:** Oct 30, 2014 at 10:21 AM »

Yung plastic wall plugs pwede din. not as reliable as t nut but survives many reinstallation. Advantage it is installed at the front of the work panel.

for loosened wood holes, I apply super glue around hole with tooth pick. Tightens up the hole. For small hole, I just ram tissue paper. Good as new.

ndotcom · « **Reply #57 on:** Oct 30, 2014 at 12:33 PM »

Quote from: tony on Oct 30, 2014 at 06:36 AM

kung sa akin yan, palit ang buong suround....mahirap kung patse patse ang trabaho....

+1 ako dito lalo na pag sa maunfacturer galing ang pamalit, ASAP habang fresh pa both drivers at di pa nakalagay sa final box niya. Para pantay parin ang breakin ng drivers. The drivers are voxativ by the way, looks and sound great out of the box.

tony · « **Reply #58 on:** Oct 30, 2014 at 01:01 PM »

@Remington, sa Tusoy ako, doroteo jose branch, marami din choices doon...

Tsnad · « **Reply #59 on:** Oct 30, 2014 at 03:12 PM »

Quote from: ndotcom on Oct 30, 2014 at 12:33 PM

+1 ako dito lalo na pag sa maunfacturer galing ang pamalit, ASAP habang fresh pa both drivers at di pa nakalagay sa final box niya. Para pantay parin ang breakin ng drivers. The drivers are voxativ by the way, looks and sound great out of the box.

what! voxativ...