Tutorial to making round PVC ports

[bonesninja 5,000+ posts]

Ever since i did the Got Bass? box, people have been PM'in me on how to do the ports. So here's a tutorial on how to make them.

Its sort of generic but you get the idea.

First off, i used just 2 small pieces of wood for the tutorial sake. The piece that we don't cut all the way through at first would actually represent the baffle that you want the port to exit.

So first step is to measure out where you want the ports to exit, double up the wood and drill an 1/8" hole through both pieces at once. This is very important if you want the two pieces of wood to line up just right.

next, measure the OD of the PVC ....3" PVC in this case so its 3.5" OD.

Next, i use my Jasper Jig and a 1/4" spiral up cut bit to route a groove 1/4" deep, set the jig to 3.5"....this will end up as your baffle that the port exits through.

This piece will be the brace inside the box. Use the spiral upcut and the same 3.5" hole and cut a hole all the way through

you will now have two pieces like so

now using Gorilla Glue, put some in the groove

Now add some more Gorilla glue around the diameter of the PVC and slide the second piece over it, screw the piece on and apply some pressure to the port until the glue sets.

then once the glue sets, drill a hole through the baffle, use a flush trim bit to route inside the pvc then a roundover to eliminate the sharp edges

Click to read more...

 

[DB-Audio 10+ year member]

cool dude I've been wanting to do that on my next box build

 

[bonesninja 5,000+ posts]

cool dude I've been wanting to do that on my next box build

its very simple and make sure you let the glue dry before removing the pressure.....and i do this on both ends of the port so the end has good support

 

[DonH 5,000+ posts]

REALLY SMART WAY! i am trully amazed! haha never would have thought of this! gona try this today!

 

[Millertime1028 10+ year member]

This is exactly how I incorporated my sono tubes into my current box. Although it was a bit more tedious as the sono tubes were not exactly round. With PVC its nice. Like to see it as a write up. Did you use a flush bit on the inside port walls and the outer baffle. I did this then used bondo, then sanded to give it a seamless look with the inner port wall and outer baffle. Worked nicely and was fairly easy IMO .

 

[bonesninja 5,000+ posts]

This is exactly how I incorporated my sono tubes into my current box. Although it was a bit more tedious as the sono tubes were not exactly round. With PVC its nice. Like to see it as a write up. Did you use a flush bit on the inside port walls and the outer baffle. I did this then used bondo, then sanded to give it a seamless look with the inner port wall and outer baffle. Worked nicely and was fairly easy IMO .

yes

 

[rollerdj 10+ year member]

got any pic's of the finished product? i never saw the build.

 

[jmanpc 5,000+ posts]

I just cut a hole in the MDF to match the OD of the PVC, and then coat the inside of the cutout and the outside of the PVC with gorilla glue. Then I set it down on a piece of newspaper and let it cure. When it's dry, sand off the newspaper and hit it with a roundover bit.

Ending result:

It might take a little filler to make it smooth, too.

 

[bonesninja 5,000+ posts]

got any pic's of the finished product? i never saw the build.

 

[bonesninja 5,000+ posts]

http://www.caraudio.com/forum/showthread.php?t=393160

 

[iamamp3pimp 5,000+ posts]

im going to do one of these when i rebuild the enclosure for my HT sub.

 

[cf2004 10+ year member]

thanks for taking the time to make a tutorial on this. great info to have!

 

[72 chevy van 10+ year member]

I do all my round ports like that.

 

[302yota 10+ year member]

did you flare the inner part of the port....you may have i just kinda got lost when you said something about slide the second piece on, screw and apply pressure.. or something like that.

 

[microhaxo 10+ year member]

Sweet, just what i needed! Thanks..