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-   -   Jayhovah's fiberglass sub box build log (http://www.the370z.com/audio-video/125201-jayhovahs-fiberglass-sub-box-build-log.html)

Jayhovah 12-31-2017 03:40 PM

Polyester resin does not stick to the Ikea chopping mat! I will try to give it a shot for setting up the last side. I think I will try to do it similarly to the top..will set up a few layers on the mat and wet it out, then try to form it over the side and hold it in place to cure... If I can secure everything in the right position Ill glass as much as I can on the inside of the box through the sub cut-out and figure out the rest later.

http://www.the370z.com/members/jayho...ting-board.jpg

Asus_ 12-31-2017 03:58 PM

impatiently waiting for final results lol :stirthepot:

Jayhovah 01-01-2018 02:03 PM

Well I got the side molded and glassed up.. sort of. It did not go very well.

http://www.the370z.com/members/jayho...ide-mold-2.jpg

http://www.the370z.com/members/jayho...ide-mold-1.jpg

http://www.the370z.com/members/jayho...eady-glass.jpg

Here is the mock up of how I wanted it to work... Ikea chopping mat supported by modeling clay and a wheel chock (only because I didn't have enough clay).

Looked good at this point.. so I unstrapped the enclosure and laid down 4 layers of 6oz cloth then replaced the enclosure and strapped it back down.. Started laying down cloth patches on the inside to secure it... Things were going so well! But then disaster struck.. The clay started to soften and sag on me from the heat of the curing process... so I tried to push it back into place and the whole enclosure slipped on the wet mat.

I unstrapped the enclosure and pulled out all the wet cloth patching on the inside, straightened out the large pieces of cloth on the chopping board, and secured the enclosure again as best I could while the resin was gelling on me... mixed up a fresh batch of resin and started repatching everything back into place. I only got one layer on the lid side where I had to glass it in blind,

I will definitely have to use BoneZ's filler-shake trick to ensure a good seal I think.

http://www.the370z.com/members/jayho...et-up-cure.jpg

So here it is curing... you can see the enclosure walked quite a bit and is a little off the board in a few places.. luckily fiberglass can be forgiving with needing to patch and repair spots... it just sucks cutting, grinding, and sanding it so I always try to get things right the first time.

redondoaveb 01-01-2018 02:40 PM

Quote:

Originally Posted by Jayhovah (Post 3718688)
Well I got the side molded and glassed up.. sort of. It did not go very well.

http://www.the370z.com/members/jayho...ide-mold-2.jpg

http://www.the370z.com/members/jayho...ide-mold-1.jpg

http://www.the370z.com/members/jayho...eady-glass.jpg

Here is the mock up of how I wanted it to work... Ikea chopping mat supported by modeling clay and a wheel chock (only because I didn't have enough clay).

Looked good at this point.. so I unstrapped the enclosure and laid down 4 layers of 6oz cloth then replaced the enclosure and strapped it back down.. Started laying down cloth patches on the inside to secure it... Things were going so well! But then disaster struck.. The clay started to soften and sag on me from the heat of the curing process... so I tried to push it back into place and the whole enclosure slipped on the wet mat.

I unstrapped the enclosure and pulled out all the wet cloth patching on the inside, straightened out the large pieces of cloth on the chopping board, and secured the enclosure again as best I could while the resin was gelling on me... mixed up a fresh batch of resin and started repatching everything back into place. I only got one layer on the lid side where I had to glass it in blind,

I will definitely have to use BoneZ's filler-shake trick to ensure a good seal I think.

http://www.the370z.com/members/jayho...et-up-cure.jpg

So here it is curing... you can see the enclosure walked quite a bit and is a little off the board in a few places.. luckily fiberglass can be forgiving with needing to patch and repair spots... it just sucks cutting, grinding, and sanding it so I always try to get things right the first time.

Can I cancel my order? :rofl2:

BoneZ 01-01-2018 02:53 PM

Quote:

Originally Posted by redondoaveb (Post 3718697)
Can I cancel my order? :rofl2:

Lol

RonRizz 01-01-2018 06:52 PM

like you said......it IS a very forgiving medium to work with. Im sure youll get it squared away.

Jayhovah 01-01-2018 07:10 PM

Quote:

Originally Posted by RonRizz (Post 3718718)
like you said......it IS a very forgiving medium to work with. Im sure youll get it squared away.

Not as bad as I initially thought!

It finally finished curing so I popped it off the mold and it actually turned out OK. If I have time tonight I'll add a couple of more layers onto that side and a few more small patches inside.. I go back to work this week though so progress may stall until next weekend.

http://www.the370z.com/members/jayho...side-place.jpg

RonRizz 01-02-2018 04:47 PM

I'm on the opposite side... I'm off this week, and will be starting on my fiberglass sail panels.... as well as beefing up the soundproofing in the door panels. the new SI MkV's are midbass monsters!

90 ST 01-02-2018 05:26 PM

1 Attachment(s)
Went a similar route, but with a pair of 10's.

Fuzzzy 01-02-2018 08:37 PM

Quote:

Originally Posted by 90 ST (Post 3718892)
Went a similar route, but with a pair of 10's.

That looks like an emergency hatch release mechanism.

Jayhovah 01-02-2018 09:11 PM

Quote:

Originally Posted by RonRizz (Post 3718881)
I'm on the opposite side... I'm off this week, and will be starting on my fiberglass sail panels.... as well as beefing up the soundproofing in the door panels. the new SI MkV's are midbass monsters!

Look forward to seeing the outcome!!! Sounds awesome.

Quote:

Originally Posted by 90 ST (Post 3718892)
Went a similar route, but with a pair of 10's.

Showstopper.. how are you going to finish them out?

RonRizz 01-03-2018 03:40 AM

Quote:

Originally Posted by 90 ST (Post 3718892)
Went a similar route, but with a pair of 10's.

Sweet

90 ST 01-03-2018 10:16 PM

2 Attachment(s)
finished the install a few years back, sold the car after hitting 250,000 miles.

There are pics of a few different installs I did over the years for the Z in my albums.

Jayhovah 01-05-2018 09:38 PM

No-Pics update... I trimmed the side and the outside shape looks fantastic.. but I didn't feel good about where I glassed it on the inside blindly.... I ended up doing what I should have done when I added that side - I cut a panel out of the bottom so it wouldn't be blind anymore.

.. It was a bit of a mess in there, so I mixed up 8oz of resin and just poured it in against that edge to ensure it was sealed up completely and the seam is strong. Added a few extra layers to that side to stiffen it up as well. Only found one pin hole large enough to leak so not too bad. Ill glass the panel back in tomorrow and take some pics... will also do the bondo Milkshake and finally start filling and cleaning up the outside for vinyl.

Jayhovah 01-06-2018 11:57 PM

Gave the enclosure a light sanding and skimmed with some filler. There is a lot more filler on the last side as there seems to be a little bit of a dimple in it that needs to be leveled.

I am completely out of filler and resin so I'll test the seal in the box after sanding to see if I need to make another trip to get more resin and filler for the milkshake finish... if its sealed I'll probably just skip that step. Going to test by mounting the sub and gently pressing and holding down the cone and seeing how quickly it rebounds when released.

http://www.the370z.com/members/jayho...ady-filler.jpg

http://www.the370z.com/members/jayho...ady-filler.jpg

http://www.the370z.com/members/jayho...ady-filler.jpg

Here it is ready for filler...

http://www.the370z.com/members/jayho...239-filler.jpg

http://www.the370z.com/members/jayho...238-filler.jpg

The filler job is a little messy as I mixed it too hot and didn't get enough work time so it started to firm up on me... no big deal... I am planning to vinyl so it doesn't need to be flawless.

I will need to go pick out some vinyl.. I was hoping I could use a scrap left from my poker table project but its not quite wide enough... I'll try to find something that fits in with the OEM interior.


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