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how do I fiberglass enclosure?


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crxguy455 
Member - Posts: 9
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Joined: October 06, 2005
Location: Canada
Posted: October 06, 2005 at 7:43 PM / IP Logged  
I want to make a subwoofer enclosure in my trunk but don't just want a square wooden box wrapped in carpet. I asked around and somebody told me i can tinfoil the trunk, so fiberglass doesn't stick to it, then fiberglass and add resin. Then make rings for the subs to go in, but dont mount them on a frame or anything, just get the foam that expands and empty a can on the bottom on the enclosure, make the shape you want, then place the rings where you want them. When you are done sanding to get the concave shape you want, fiberglass and add resin again, then cut holes for rings. and place them in. Hollow out the foam a little bit for room for the subs, wires, etc, then add subs, wire and play. Is this right? Something sounds off and this is my first time doing anything so I dont want to mess it up because someone told me something wrong. The foam part sounds interesting but can I do this without a wooden frame or anything?
blah
crxguy455 
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Joined: October 06, 2005
Location: Canada
Posted: October 06, 2005 at 8:04 PM / IP Logged  

This is kind of what I'm going for more like the black enclosure with the 2 subs, any help  on how to do it just like this would really help.

how do I fiberglass enclosure? -- posted image.

how do I fiberglass enclosure? -- posted image.

blah
crxguy455 
Member - Posts: 9
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Joined: October 06, 2005
Location: Canada
Posted: October 06, 2005 at 8:06 PM / IP Logged  

WOW Sorry, huge pic, here it is hope this works better

how do I fiberglass enclosure? -- posted image.

blah
jlord16 
Silver - Posts: 322
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Joined: September 08, 2005
Location: Australia
Posted: October 07, 2005 at 7:27 AM / IP Logged  

Yer aluminium foil works great, cept it can stick to the enclosre, i dont use foam though.  what you do is make all the flat areas outa MDF and glass onto the MDF for joins.  use dowel rods and hot glue to hold the speaker rings in place.  The you apply fleece to the enclosre and glass

Check out this link its a good site, this is how i did my box, cept i used a flat MDF front and used glass to make a mould of the side of the cars boot

http://web.njit.edu/~cas1383/proj/Glassing2/index.htm

http://web.njit.edu/~cas1383/proj/Glassing1/index.htm

good luckbreglassing is quite easy once u get the hang of it

Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*
crxguy455 
Member - Posts: 9
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Joined: October 06, 2005
Location: Canada
Posted: October 07, 2005 at 6:36 PM / IP Logged  
Thanks, this helps. But the only flat piece will be the bottom so can I just make the entire piece out of fiberglass? Also, some sub boxes are sealed, ported, vented, etc. This will be sealed right? how would you seal it?
blah
jlord16 
Silver - Posts: 322
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Joined: September 08, 2005
Location: Australia
Posted: October 07, 2005 at 8:09 PM / IP Logged  
Fibreglass isnt very stong for flat peices so it really depends on how big the flat base is.  Yes you could do it as a sealed or ported.  The site link that i gave you shoes the steps, wen the fleece is stretched and glassed it will provide a seal.  FG is waterproof and if there are no holes will be air tight.  You will need more then 5 layers of glass usually, this will provide a seal, aslong as there are no air bubbles.
Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*
crxguy455 
Member - Posts: 9
Member spacespace
Joined: October 06, 2005
Location: Canada
Posted: October 08, 2005 at 12:05 PM / IP Logged  

So can I make the fiberglass enclosure ported or vented too?

blah
abovestock 
Copper - Posts: 247
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Joined: June 08, 2005
Location: United States
Posted: October 08, 2005 at 3:11 PM / IP Logged  
You can make it any way you want as long as you follow the Manf. reccomended enclosure size. Also as mentioned above to keep the foil from sticking apply a thin coat of car wax before you lay your glass on.
Why do you ask if I ate paint chips when I was younger?
jlord16 
Silver - Posts: 322
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Joined: September 08, 2005
Location: Australia
Posted: October 09, 2005 at 4:31 AM / IP Logged  
Ported and vented are the same thing, just a different name
Clarion DB36MP
Infinity Kappa Perfect 10"
Respone 800w Mono
ALPINE MRP-F250
*Custom fabrications*
crxguy455 
Member - Posts: 9
Member spacespace
Joined: October 06, 2005
Location: Canada
Posted: October 09, 2005 at 10:34 AM / IP Logged  
Thanks this helps alot I'm going to go to my local audio shop to get the recomended dimensions for the box then get started on it either this week depending on how the weather is or do it in the spring...for some reason its been really crappy weather for 2 weeks now, and they say its not getting any better.
blah
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