View Full Version : crazy idea about box building...

11-27-2004, 06:03 PM
lets say you build a box out of
cardboard as sort of a demo
for how your going to build your
real box...

what is stopping you from
just fiberglassing the
carboard mockup to make
it strong and calling it a day???


11-27-2004, 06:07 PM
fiberglass isnt that strong in flat panels so it would jsut be better to make an MDF one

11-27-2004, 06:17 PM
^ That, and it doesn't make any sense. You'd be wasting a shitload of money and time for something that you can accomplish (with better results) with less than $75 and some MDF in about an hour.

11-27-2004, 06:28 PM
i didnt know how much fiberglass even was...

bear in mind i have not actually done anything
yet... im just getting started on my first box
thats all...

11-27-2004, 06:58 PM
Unless the box has Alot of complex angles and curves you don't need to worry about fiberglassing. I have used that technique for kick panels and some smaller boxes. It is possible to do that though, if you have longer sections you should reinforce it with rods of fiberglass or something. And you would have to make sure you didn't over soak the cardboard cuz that would lead to saggage.

11-30-2004, 12:05 PM
Heres a trick. I went on a research hunt for box building techniques and i got far better answers with targeted questions than just searching or browsing the forums.
Use Triangular pieces of oak or MDF in the far corners of your box, but make sure in your plans to factor this in with your volume. (subtract mass of foreign objects in your box) Use drywall screws, predrill holes for screws about halfway. And people use a cilicone sealant for the corners and edges of the walls and so on. I dont like cilicone, i use a petroleum product called Vulkem, its an excellent sound dampener, and helps alot in keeping your bass bottled up inside the box. Even when firing out of some ports, it hits a few decibles higher.

As for the fiberglass, its expensive. But if you are building an overkill strongbox, it doesnt hurt to coat the interior a few times with resin. Tricky if your box is thoroughly reinforced, but worth it if your using 1000 watt subs or higher.