Whats goin on effers. Well after researchin on the net i figured i would try my own custom sub enclosures. Its my first time so feel free to laugh real hard :lol: .
I thought i might document it as i went along to show since i really hadn't seen anything like this on this particular sight. Anyways just got started today and hear it goes, wish me luck. Just started by taping off 2inches past where i wanted the fiberglass to go. next step tomorrow

Bubye
Wrightie

Another angle. (dont worry the box is comin out next step)

Are you using this site: http://web.njit.edu/~cas1383/proj/main/ ?


And please let us know what you got/ where bought/ money spent on each item. I was looking forward to doing some fiberglassing in the future .

i was planning on doing this before the winter, but things got hectic. Now i gotta wait till spring, but it will be nice to have someone elses help who's done it before. Are you putting the tape right on the carpetting, or are you going right against the body of the car. There were a couple real detailed links on this site that i looked at before i decided i wanted to do this. It will be nice to have the boomins and still be able to flip your back seats down to run your snowboard gear thru. Good luck!

A few suggestions. The tape is ok, but will be difficult to remove from the finished product. I prefer plastic. The large sheets at the hardware store work great. What ever you do chose, use a release agent. Spam seems to work pretty good. The problem with the tape is that the resin tends to drain between pieces. Now comes the important part. Just like any box, the volume is critical for the performance of the woofer. Once you have determined the volume, you will want to incorporate it into the new design. The easiest method is to find something that can be measured and then shaped. Some of the stores like Hobby Lobby carry foam beads. They have a slight moist texture and stick to one another but hold the shape you mold them to. Just measure out the volume using a pitcher and then shape it in your car. The trick is to shape your volume and then do the outer layer first. This enables you to scoop out the foam, plaster, or what ever you used. Then you can do the bottom layer. The third step would be to join the two pieces and thicken the final product. Good luck and let us know how it goes.

aluminum foil is your friend ;)

Wassup effers. Well I started step 2 today with the aluminum foil. up until this point i've put 2 layers of tape and the one layer of foil. I might put on the first layer of fiberglass tonight . Wish me luck.

Later
Wrightie

sorry F****d up

The problem with aluminum foil is that it wrinkles very easily. The resin then gets between the wrinkles and makes it difficult to remove. If you use a large sheet of plastic it can be stretched smoother. A release agent can be applied to ease in the removal. Then the plastic can be reused as opposed to aluminum or tape. The smoother that the resin is, the less you will need bondo or any other filling agent. They can all be costly, so every bit can help.

By the sounds of things you are pretty experienced with these sort of things. Most of the sights i visited suggested i do it the way I am up to this point. I think you have a valid point with the plastic and release ageant but I think I am to far along at this point to go backwards. I appreciate your input and any tips relevent to the upcoming steps with be greatly appreciated.

Thanks
Wrightie

Just think when you get the mold done you can sell it to the rest of us so we dont have to do so much work.

He has a point. There are alot of us either too lazy or too busy to do the dirty work. I agree that you are pretty far along to change. My suggestions are more for points to concider along the way or next time around. Fiberglass can be very expensive. The only thing I would suggest to look into would be my comment on volume. The last thing you want to do is spend the time and money on a inefficient box.
When you have finished the overall shape of the box, be certain that your walls are thick enough to prevent flexing. The best method I found was to spray the inside with two to three coats of fiberglass filler. The type used on boats works great and is cheaper. I also placed thin fins on the inside of the boxes to help prevent echoing. The reason square boxes are so popular is due to the lack of waves being bounced back to the coil as in a round enclosue. A dampening fabric or rubber coating will also help to reduce it.

i like to line the walls if my sub with polly fill and do about a 50%stuff as long as you have a good sub it will sound good i have a sealed 15 in a 2.5 cf encloser the box is a little on the small side.but i get a little less low end but a better q and a lower group delay

doesn't stuffing the enclosure reduce the volume of the box? maybe thats why your losing lowend slowandlow. also wouldn't the polyfilla smooth the inside and create more of a chance of echoing and reverb?

Actually it "tricks" your woofer into thinking its in a bigger box then it actually is.

Well im back effers. Step 3 has been a pain in the ass so far. I have done 3 coats of fiberglass so far and I think i will probably need at least 2 to 3 more. Man this is geetin a little more expensive than i thought. Any ways heres an couple of pics to show where Im at so far.

And here it is in its home. Pretty nice fit if I do say so my self. To bad I still have about 4 months work to go :lol:

looks pretty good.... 4 more months? all you need is a few more layers, your 1/4" dowels, an mdf ring, and stretch some fabric over it, then glass it :)

ill go ahead and ask the question, what are the 1/4" dowels for, and where do they go?

^^^