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View Full Version : fiberglassing my trunk...pics!!!



luv2bass
03-06-2006, 10:18 AM
20kg of fiberglass and 20sq meters mat so far.i think i need 10kg+10sq.m. more. to finish.

don't try this if you haven't worked with fiberglass before.



http://img344.imageshack.us/img344/5667/13nz2.jpg (http://imageshack.us)

http://img46.imageshack.us/img46/2994/28bm.jpg (http://imageshack.us)

http://img344.imageshack.us/img344/1680/33wm.jpg (http://imageshack.us)

http://img344.imageshack.us/img344/9022/138qx.jpg (http://imageshack.us)

http://img46.imageshack.us/img46/4642/125bk.jpg (http://imageshack.us)

luv2bass
03-06-2006, 10:23 AM
http://img344.imageshack.us/img344/7961/119fp.jpg (http://imageshack.us)

http://img46.imageshack.us/img46/8381/107sq.jpg (http://imageshack.us)

http://img46.imageshack.us/img46/2462/78vs.jpg (http://imageshack.us)

http://img344.imageshack.us/img344/1807/63hj.jpg (http://imageshack.us)

http://img46.imageshack.us/img46/1859/54qy.jpg (http://imageshack.us)

luv2bass
03-06-2006, 10:30 AM
the enclosure fits so tight in the trunk that i always need someone to help me move it.

i have to add some serious bracing over the large panels and build the baffle with lots of fiberglass and mat.

total thickness of panels is 5-6mm but is strong as 19mm mdf.

do you have any ideas how to measure the volume of the enclosure???it has a lot of bends and curls and can't calculate accurately.

i tried filling the enclosure with water but had some leaks and need to fix this first.

saywhat?
03-06-2006, 10:35 AM
first off, u went about it completely wrong. u need to use wood for the majority of that box. the sides/front piece/bottom should ALL be wood. theonly thing glassed should be the baffle and back wall.


that thing is so weak i gauruntee u. ur wasting money glassing it all and hurting performance.

azbass
03-06-2006, 10:36 AM
looks good. but looks like a lot of that you could have made wood.

luv2bass
03-06-2006, 10:37 AM
in try to gain space using thin walls

nVRuckus
03-06-2006, 10:37 AM
thats alot of glass LOL.

Worlddre
03-06-2006, 10:38 AM
:word: life glass is not at its strongest when flat...good work btw

nVRuckus
03-06-2006, 10:39 AM
might want to post this in the right section next time too, http://www.caraudio.com/forum/forumdisplay.php?f=25

saywhat?
03-06-2006, 10:40 AM
in try to gain space using thin walls


lol the only thing your gaining is flex. thin walls dont help your enclosure EVER

Jesse98
03-06-2006, 10:52 AM
lol the only thing your gaining is flex. thin walls dont help your enclosure EVER
indeed, and it saves money doing all you can out of mdf also, but im sure you know that now, lol, but it also depends on what woofers you are using if they are low excurions woofers you really shouldnt have any problems, but a good woofer will flex the hell outta that box, a real big woofer could even blow it apart :crazy:

Worlddre
03-06-2006, 10:57 AM
i have a question as to how mounting the rings that way is going to work

NDMstang65
03-06-2006, 11:06 AM
the only way your going to get that to not resonate is to put mdf on the large panels of the fiberglass on the inside of the enclosure and add matt and resin overtop of it

i HIGHLY suggest it, otherwise your in for a world of hurt

squeak9798
03-06-2006, 11:25 AM
:word:

Very bad choice going with all fiberglass. MDF is exponentially stronger for flat surfaces.

I'd honestly just suggest scraping that all together, start over and do it the right way.

ramos
03-06-2006, 11:33 AM
i have a question as to how mounting the rings that way is going to work


Was wondering that same thing. Along with most everyone else, I think you should have built the majority out of mdf. But since you have come this far, how much flex are you dealing with ? Before you add anymore mat, I would glass in some mdf ribs, or some rope ribs to stiffen it up. :)

rocky 59
03-06-2006, 11:37 AM
very nice work. but agreed with you should have used mdf. but an A+ for effort :D

dalucifer
03-06-2006, 12:06 PM
good work... i agree with the thing walls

blue93corsica
03-06-2006, 01:32 PM
agreed with everyone else. and those rings look a little to recessed, should raise them up a bit more

saywhat?
03-06-2006, 01:40 PM
i think he is gunna cut down the glass as its still got frayed glass on it.

THUNDERBIRD
03-06-2006, 02:15 PM
u just need to add some mdf ribs on the bottom and walls and throw like another 3 layers on and u'll be straight

luv2bass
03-09-2006, 04:50 AM
the bracing it's done and it's so solid now.

i can lift it all grabbing only one piece of mdf bracing.

also now you get the point of the angled wooden circles.i have cut the front of the box.

now it's the baffle's turn...

http://img50.imageshack.us/img50/6225/143zo.jpg (http://imageshack.us)

http://img50.imageshack.us/img50/1875/150gr.jpg (http://imageshack.us)

http://img50.imageshack.us/img50/1777/167cl.jpg (http://imageshack.us)

http://img50.imageshack.us/img50/8043/171lh.jpg (http://imageshack.us)

maldecido33
03-09-2006, 10:14 AM
you need serious bracing in that box

saywhat?
03-09-2006, 01:47 PM
well i guess he neg repped me for giving him advice to make his box better. whatever works for him i guess, but it will prolly sound hollow and ******.

mikey060
03-09-2006, 01:53 PM
well i guess he neg repped me for giving him advice to make his box better. whatever works for him i guess, but it will prolly sound hollow and ******.

i gave you positive rep:)

Chevyaudio
03-09-2006, 01:55 PM
That box is gonna flex horribly....Take ramos's advice and glass some MDF ribs into the walls.

saywhat?
03-09-2006, 02:03 PM
u def need bracing man, thats rediculous to have that thin of glass walls and they bed STRAIGHT walls.

THUNDERBIRD
03-09-2006, 02:06 PM
it looks like u just poured a bunch of resin in the bottom. seriously looks like an inch of just resin

luv2bass
03-11-2006, 07:17 PM
enough with polyester...30kg and lots of mat

now it's time to sand!!!

http://img100.imageshack.us/img100/4467/185ka.jpg (http://imageshack.us)

http://img100.imageshack.us/img100/4971/192rs.jpg (http://imageshack.us)

http://img228.imageshack.us/img228/9215/202eo.jpg (http://imageshack.us)

http://img100.imageshack.us/img100/3446/215zq.jpg (http://imageshack.us)

luv2bass
03-11-2006, 07:18 PM
the water experiment

23 buckets of 10lt water = 230lt net volume

not bad for a small hatchback

http://img228.imageshack.us/img228/8899/224rb.jpg (http://imageshack.us)

maldecido33
03-11-2006, 07:29 PM
you need internal bracing

saywhat?
03-11-2006, 07:30 PM
he wont listen, let him realize when his enclosure sounds hollow.

luv2bass
03-28-2006, 01:38 PM
after polyester putty and sanding

http://img89.imageshack.us/img89/391/232ma.jpg (http://imageshack.us)

http://img89.imageshack.us/img89/9895/245ld.jpg (http://imageshack.us)

luv2bass
03-28-2006, 01:41 PM
after polyester primer and sanding

http://img378.imageshack.us/img378/7235/264iy.jpg (http://imageshack.us)

http://img361.imageshack.us/img361/2263/253nu.jpg (http://imageshack.us)

luv2bass
03-28-2006, 01:46 PM
after paint and varnish(without sanding!!!)

http://img361.imageshack.us/img361/4293/271ex.jpg (http://imageshack.us)

http://img139.imageshack.us/img139/1306/286jf.jpg (http://imageshack.us)

http://img361.imageshack.us/img361/5553/293ik.jpg (http://imageshack.us)

j3bus2k3
03-28-2006, 01:46 PM
well it looks good but you A.) have no bracing whatsoevar, and B)have a signle port for what I would guess is 2 12"....best of luck but dont be surprised if it sounds like arse.

luv2bass
03-28-2006, 01:46 PM
The End

PhatTonyDeMarco
03-28-2006, 01:48 PM
How does it sound?..

IamDeMan
03-28-2006, 01:53 PM
How does it sound?..


dont be surprised if it sounds like arse.

:crap:

saywhat?
03-28-2006, 01:55 PM
id be more than suprised if it was pleasureable to listen to. the work looks good, but u skipped some steps.

luv2bass
03-28-2006, 01:55 PM
well it looks good but you A.) have no bracing whatsoevar, and B)have a signle port for what I would guess is 2 12"....best of luck but dont be surprised if it sounds like arse.


thanks for your good words.

by the way the box is for 2 15" and the little port you see it's 6" wide=more area than 2x4".i couldn't insert bigger diameter as you can see.

j3bus2k3
03-28-2006, 01:59 PM
6" diameter port means ~28in^2 of port vs 2 4" diameter totaling ~25in^2 of port. Either way it's still not enough for 2 12" woofers let alone 2 15" woofers....I dunno man. Like I said, the box looks trick but it just seems...off.

saywhat?
03-28-2006, 01:59 PM
thats still only like 28 sq. in. of port... u need hell.....45-55 for two fifteens, easy

Chevyaudio
03-28-2006, 02:01 PM
thats still only like 28 sq. in. of port... u need hell.....45-55 for two fifteens, easy

:iagree:

You are going to run into some major issues with only 28 Sq in of port for 2 15s....Quick question....what subs are goin in there?

saywhat?
03-28-2006, 02:01 PM
err... is it pi(r)^2? if thats the case...its like 60.... im confused. i forgot the **** equation lol. i know a 4 incher is like....12.56 so im guessing its 28, just i swear it is pi(d/2)^2

j3bus2k3
03-28-2006, 02:03 PM
area of a cirlce=(pi)*r^2 but r=d/2 so both your equations are good grant.

Chevyaudio
03-28-2006, 02:03 PM
Area of a circle is Pi (R)^2

edit...dammn it beat me

THUNDERBIRD
03-28-2006, 02:03 PM
turned out good and pics of it in the car, and how does it sound