PinoyDVD: The Pinoy Digital Video & Devices Community
Home Theater => Audio => Speakers => Topic started by: mykel18 on Oct 23, 2014 at 11:37 AM
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Helping a friend to source opinions on how to easily fix his damaged foam surround. Natusok ng screwdriver while attaching the driver to the enclosure. Item just arrived and was shipped from US pa. Ano pinakamadaling way to fix this? Pwede ba idikit na lang? If for replacement, kelangan same na same ba because it might affect SQ? Thanks sa mga sasagot.
(http://i1241.photobucket.com/albums/gg513/mykeldeleon/77951850-1CB2-4730-9C9D-AFC94959B7E4_zpslg1jutl9.jpg)
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Sound check mo if there is audible mechanical sounds. Also observe over time if the tear grows. If sq is ok and tear remains the same then I suggest that you leave it alone. I don't think that will be much of an issue.
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Sound check mo if there is audible mechanical sounds. Also observe over time if the tear grows. If sq is ok and tear remains the same then I suggest that you leave it alone. I don't think that will be much of an issue.
Thanks! We did check the sound last night and so far wala naman kami narinig na difference. We'll be observing the sound again soon.
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I suggest that you forget about it. If something comes up later then pa bago mong surround. I personally kasi like it a lil damaged like that but has original surround and glue than a fixed one with questionalble quality and durability. These closed cell foam naman have rip stopping characteristics.
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I suggest that you forget about it. If something comes up later then pa bago mong surround. I personally kasi like it a lil damaged like that but has original surround and glue than a fixed one with questionalble quality and durability. These closed cell foam naman have rip stopping characteristics.
So would you suggest to glue it? What glue should he use? The owner wants it fixed talaga but the shipping cost worries him. If he will be convinced na walang SQ difference then he might leave it like that.
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Myke SI Norman magaling dyan hehehe
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Try putting tape (not sure what kind para tumagal ang kapit) over the tear to prevent further ripping of the foam.
Kung lumaki na talaga ang rip (over time), have the foam surround changed by the Speaker Doctor.
Of course iba pa rin kapag original foam.
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Myke SI Norman magaling dyan hehehe
Haha. Actually kinausap ko na sya kung pwede nya tignan.
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Try putting tape (not sure what kind para tumagal ang kapit) over the tear to prevent further ripping of the foam.
Kung lumaki na talaga ang rip (over time), have the foam surround changed by the Speaker Doctor.
Of course iba pa rin kapag original foam.
I suggested to have it replaced with the same and original foam surround. Told him to contact the manufacturer and buy the surround as it will be cheaper that way than sending the driver back to them.
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Haha. Actually kinausap ko na sya kung pwede nya tignan.
Nakita ko na, ganda ng drivers at ok pa naman tunog niya sa current/break in box nya kasi malayo pa sa back panel ng box. Pero doubt ko pag nasa intended box na malapit sa back panel yung driver, dun malamang may effect kasi may singaw ang driver, anyway mo tignan di talaga maganda ang may butas na driver.
Ok na din muna yung pandikit repair na plan ng may-ari basta applied to the minimum at thinly lang sa backside ng surround at wag na sa harap. Sana lagyan din ng manipis na onion skin like paper yung likod ng adhesive na ilalagay para di maging dust collector.
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pwede ang rugby cement dyan...
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lagyan mo ng glue sir... yun Elmers ang brand. kung kaya sa loob manggaling mas maganda.
bili ka ng maliit na syringe sa Mercury Drug (wag sa hardware store ;D) tapos yun gamitin pang apply para malinis. :)
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lagyan mo ng glue sir... yun Elmers ang brand. kung kaya sa loob manggaling mas maganda.
bili ka ng maliit na syringe sa Mercury Drug (wag sa hardware store ;D) tapos yun gamitin pang apply para malinis. :)
Naiisip ko din ito tukayo. Hindi ba siya matigas kapag nag-dry? What if rugby para may flexibility pa din?
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rugby might eat up the surround material.
i'd go with the elmer's glue suggestion by jo.
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if rugby is too strong, you might consider rubber chack..ito ung ginagamit namin pandikit ng table tennis rubber sa kanyang handle..less viscous pa siya.
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Naiisip ko din ito tukayo. Hindi ba siya matigas kapag nag-dry? What if rugby para may flexibility pa din?
Patch up work lang naman, as in surgical repair lang. You can use rugby contact cement pero matigas din yun.
If you're concerned with flexibility then use silicone sealant, usually available ito sa mga hardware, hindi na kailangan ng syringe na nabibili naman sa botika.
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rugby might eat up the surround material.
i'd go with the elmer's glue suggestion by jo.
I tthink it would not if the surrounds are made of expanded polyethylene foam. But just to be sure, you can test with a tiny drop sa teared surrounds.
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me nagpagawa sa akin ng Technics 3 way speakers in the 90's, pinalitan ko ng foam surrounds yung woofer, standard naman ang size nya, 15 inches...binayaran ako ng pioneer open reel tape deck, non working nga lang, pero naibenta ko pa rin ng mataas ang price....;)
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Thanks sa mga sumagot. Will relay everything to the owner. Norman next time ulet.
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foam surrounds should not be a big deal, its "reason for being" is to support the diaphragm in tandem with the spiders........
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Sir, elmer's glue ito rin yung gamin ko pag repair ng foam, then used a small artist brush kung kaya sa loob mas ok.... ^-^ or nail polish color black sa loob din kung kaya... :) the nail polish become rubberize pag tuyo...
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Kailangan flexible glue, Elmers is hard when it dries. Thin layer of silicone should work. Contact cement should work but it would be risky as if you make a mistake when your joining the two pieces, wala ng tangalan.
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one thing about foam surrounds, napupulbus yan over time, it is just a matter of when it is going to happen...
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Sis, try mo kay Mang Paul
Taga Sta. Ana, Mnla. Veteran na sa gera yan este driver repairs ^-^
Landline: 382-9845
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one thing about foam surrounds, napupulbus yan over time, it is just a matter of when it is going to happen...
Question master Tony. What if the original foam surrounds is replaced with rubber, ano ang magbabago sa kanya? Sensitivity etc?
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Question master Tony. What if the original foam surrounds is replaced with rubber, ano ang magbabago sa kanya? Sensitivity etc?
honest answer...i do not know....unless we can measure data before and after...
just a guess, i am not sure you can hear the difference if at all...
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Sis, try mo kay Mang Paul
Taga Sta. Ana, Mnla. Veteran na sa gera yan este driver repairs ^-^
Landline: 382-9845
meron ding taga antipolo.. si Nemesio Seritan, nasa facebook sya... https://www.facebook.com/nemesio.seriritan?fref=ts
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Si Benedict aka speaker doctor mahusay. Highly recommended. Taga Paco Manila.
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Kailangan flexible glue, Elmers is hard when it dries. Thin layer of silicone should work.
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.
Contact cement should work but it would be risky as if you make a mistake when your joining the two pieces, wala ng tangalan.
Have you even seen the intended application? ;D Wala naman two pieces to join there eh, it's just a small rip in the surround that needs patching up. ;)
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aside from elmer's, you may try this:
(http://www.bostik.com.ph/(S(l5rm3f45xtbwg0553ug13b55))/_newsdata/56/object/main.jpg)
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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.
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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
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? ;D Wala naman two pieces to join there eh, it's just a small rip in the surround that needs patching up. ;)
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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...
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+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. ;D
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ako noong high school pa ako, yung sealed midrange driver, ginawa kong ported :).. I just sealed it with Scotch tape.
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What is the advantage of using a motorized screwdriver ?
use a motorized screwdriver if you can...
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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...
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Jan nga nadale ang surrounds ng speakers ko. ;D
ikaw lang ba? >:D 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...;)
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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.
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Ah wala kayo sa lolo ko... binrenahan muna niya ng maliit na pilot hole yun butas bago nilagay ang screw... >:D
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Ah wala kayo sa lolo ko... binrenahan muna niya ng maliit na pilot hole yun butas bago nilagay ang screw... >:D
Mismo,..!
My dad thought me that,...
Great tip sir,..
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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. >:D
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.
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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...
(http://image.made-in-china.com/43f34j00KMvECbLRhokt/Hex-Head-Self-Tapping-Screw-High-Low-Thread-.jpg)
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. ;)
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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.
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Yes, Contact cement is flexible
So ano yun flexible glue? Contact cement?
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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.
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Depende sa contact cement, the ones I used are still intact after more than ten years.
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.
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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... >:D
Seriously, speaker diyer's friend ang T-nuts. Especially sa subwoofers naku napaka useful.
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Ah wala kayo sa lolo ko... binrenahan muna niya ng maliit na pilot hole yun butas bago nilagay ang screw... >:D
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. >:D >:D >:D
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... ;D
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Kitang kita ang mga OC at mga maseselan dito talaga ;)
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kung sa akin yan, palit ang buong suround....mahirap kung patse patse ang trabaho....
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Don Mark, gusto ko yan massage brader... pero wag glue ha... >:D
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.
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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...
(http://image.made-in-china.com/43f34j00KMvECbLRhokt/Hex-Head-Self-Tapping-Screw-High-Low-Thread-.jpg)
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
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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.
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Bought last Tuesday at bolts and nuts shops along Tomas Mapua corner Recto...
(http://img.photobucket.com/albums/v70/jojod818/Dump/14146307862150_zps6497767b.jpg~original) (http://smg.photobucket.com/user/jojod818/media/Dump/14146307862150_zps6497767b.jpg.html)
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Brader sayang! Kailangan ko niyan! Next time mapunta ka, idamay mo ako ha.
Bought last Tuesday at bolts and nuts shops along Tomas Mapua corner Recto...
(http://img.photobucket.com/albums/v70/jojod818/Dump/14146307862150_zps6497767b.jpg~original) (http://smg.photobucket.com/user/jojod818/media/Dump/14146307862150_zps6497767b.jpg.html)
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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.
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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.
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@Remington, sa Tusoy ako, doroteo jose branch, marami din choices doon...
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+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... :o :o
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all the more na hindi basta patch up job yan....;)
what! voxativ... :o :o
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Helping a friend to source opinions on how to easily fix his damaged foam surround. Natusok ng screwdriver while attaching the driver to the enclosure. Item just arrived and was shipped from US pa. Ano pinakamadaling way to fix this? Pwede ba idikit na lang? If for replacement, kelangan same na same ba because it might affect SQ? Thanks sa mga sasagot.
(http://i1241.photobucket.com/albums/gg513/mykeldeleon/77951850-1CB2-4730-9C9D-AFC94959B7E4_zpslg1jutl9.jpg)
sa liit ng puncture at linis ng breakline, white glue ni Elmer lan yan.
apply via toothpick sa edgeline lan then naspu naspu ng excess. pag natuyo, para walang nangyari
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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.
yung hex/allen sana ang ulo sir naikot ko na lahat yata ng Tu suy sa manila wala ako makita
@Remington, sa Tusoy ako, doroteo jose branch, marami din choices doon...
nakapag tanong na din ako dun master wala daw silang matulis meron flat ang dulo kailanagn ng nut para humigpit puro suplada pa mga tindera dun parang sila may ari hehehe
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yung hex/allen sana ang ulo sir naikot ko na lahat yata ng Tu suy sa manila wala ako makita
nakapag tanong na din ako dun master wala daw silang ganun puro suplada pa mga tindera dun parang sila may ari hehehe
ows? bakit pag dumarating ako doon nagkakagulo sila sa akin? >:D >:D >:D
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ows? bakit pag dumarating ako doon nagkakagulo sila sa akin? >:D >:D >:D
mas type ka nila master hehehe
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ows? bakit pag dumarating ako doon nagkakagulo sila sa akin? >:D >:D >:D
Magpa picture at autograph... .? >:D
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ows? bakit pag dumarating ako doon nagkakagulo sila sa akin? >:D >:D >:D
Crush ka.
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yung hex/allen sana ang ulo sir naikot ko na lahat yata ng Tu suy sa manila wala ako makita
sige sir i-confirm ko sa iyo kung saan mismo para sigurado pag punta mo meron at pagkakaguluhan ka din ng mga tindera. ;)
yun hindi matulis, bolt po yun sir, fixed-pitch yan pero mas ok yan kung kasya mga at least M4 para naka t-nut ka na. pag naka bolt at t-nut ka kasi sir kahit every week mo baklasin walang loose thread guaranteed po.
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O, ayan, inayos ko na.
(http://i97.photobucket.com/albums/l225/ginopunsalan/77951850-1CB2-4730-9C9D-AFC94959B7E4_zps9c06185b.jpg)
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The owner has already done fixing the puncture. Will take pics on my next visit.
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^that is good to know mykel.....
Crush ka.
Magpa picture at autograph... .? >:D
mas type ka nila master hehehe
siguro sa tagal ko nang bumibile sa kanila, ang tawag ko sa kanila tropang 3/4..... >:D >:D >:D
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sige sir i-confirm ko sa iyo kung saan mismo para sigurado pag punta mo meron at pagkakaguluhan ka din ng mga tindera. ;)
yun hindi matulis, bolt po yun sir, fixed-pitch yan pero mas ok yan kung kasya mga at least M4 para naka t-nut ka na. pag naka bolt at t-nut ka kasi sir kahit every week mo baklasin walang loose thread guaranteed po.
thanks sir!
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Thought I shared this one...
A "kumpare" of mine who is in the textile business recommended this to me. They use this to make flexible joints in their garments business. He also used this successfully to repair a carburetor diaphragm on one of their delivery trucks.
(http://img.photobucket.com/albums/v70/jojod818/Dump/14152402867010_zpsa1b70eed.jpg~original) (http://smg.photobucket.com/user/jojod818/media/Dump/14152402867010_zpsa1b70eed.jpg.html)
I'll look for a woofer and slash it's surround, a desperate excuse to use my new 5.11 tactical knife and test this textile glue.