Got done with exams, so I have some free time to build my new enclosure. I finally broke down and bought a plunge router and Jasper circle jig, which makes life sooooo much easier when making mount rings. The rings are perfect circles and take 1/4 of the time of using a jig saw.

All I've got done thus far is the mount rings and grill, I'm still waiting on my Knytex to come in to start the fiberglass shell. The rings are 3/4" Birch plywood.

The sub bolts into the mount ring using 10-32 hex-head bolts, and threaded inserts pressed in through the back side of the ring. The cone was dented when I bought it, and is much less noticable than in the pictures. Eventually, the hex-head bolts will be replaced by torx, tri-wing, or security screws (maybe a combination of all three) to prevent theft I'm using hex bolts now for simplicity in installation/removal during the fabriation stage. There is about 1/8" of an inch gap around the woofer frame to allow for the grill:


The grill is made by A/D/S and looks really nice as is. I'm thinking about covering it with the same trunkliner material as the whole enclosure will eventually be wrapped in, just to make it a lil' more stealth. The grill fits a little too tight night now (kinda tough to get in and out), so I need to make increase the inner radius of the top ring a little to let it slide in and out like butter:


Side view of grill protrusion. The edge of the grill sticks up about 1/4" above the surface of the upper ring. Once the ring gets fiberglassed over and has carpet on it, everything should be nice and flush:



Thats all for now. I know this stuff aint reeeaaalllly interesting, but hey. . .sometimes its cool to watch someone's project progress.

 

So wheres the fiberglass box construction?


Lookin good

 

looks like wood is that suppose to be a fiberglass box?

 

sorry..didnt read the part of where u said didnt get the fiberglass stuff yet oh well keep us updated

 

sorry one question, why are you using plywood? I've seen that crack and splinter from bass and vibrations?

Are you using the cheap stuff to mok it up?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Oblivion &raquo;</TD></TR><TR><TD CLASS="quote">sorry one question, why are you using plywood? I've seen that crack and splinter from bass and vibrations?

Are you using the cheap stuff to mok it up?</TD></TR></TABLE>

It's Birch Plywood, which is a lot nicer than normal plywood, and a lot lighter as well.

The main advantage of MDF is it's density and rigidity, making for flex-free boxes. Since 98% of my enclosure is 1/4" think bi-axial fiberglass, it will be plenty rigid. I highly doubt that my single 10" subwoofer will be producing enough internal pressure to delaminate the plywood. The mount rings arn't really an acoustical member of the enclosure, they are just supporting the woofer.

Also, I also find plywood easier to work with than MDF. It holds screws and threaded inserts better.

However, the main reson is simply that I already had the Birch plywood in my garage, and didnt feel like making a trip to Home Depot.