Sundown 12" Neo Driver 4th Order Bandpass

[Rawr-DQ 10+ year member]

Yeah I know right?

That's what I get for using my struck (stratus+truck) to move sod; plants; mulch; 8-10' lumber; ****.

 

[DonWan 10+ year member]

gotta make a video of this sub when you put it to work . I was debating on buying it as well when Jacob had it for sale..

 

[Rawr-DQ 10+ year member]

yeah; but you wont be able to see it unless I get a lexan/plexi cover

 

[Rawr-DQ 10+ year member]

Ok well the sheets got cut today; I had to clean the porch to work to mess it up again.

However with a skill saw I still manage to get cuts within 1/8th of an inch;

My method of measuring is meticulous I use the factory cut edges of the boards in order to setup a guide. I lined the corners up flush to the guide; the cut board; and the support directly on the chairs I used as saw horses.

From there I do the following:

Measure the saw blade to the rim of the saw to determine the distance of the blade to the guide depending on which side of the board I'm on (I account of the thickness of the blade)

Basically if I'm cutting from the 4x8 sheet and the guide is on the outside the cut. I need to factor in the thickness of the blade plus the distance to the guide from the rim of the saw. If the guide is sitting on the board and I'm trimming it to size; I factor out the blade and just use the distance of the blade to rim.

I make two markings on the cut sheet the guide arrows and cut arrows using a tape measure.

I place the guide down and line the board on the center of the arrows and clamp down.

Here is the tedious part:

I use a block to nudge the board into alignment before while and after clamping it in place; Then I cut a test notch; measure my board; adjust if necessary; then rip it in a few seconds maintaining and even level pressure perpendicular to the cut.

Spend 10-20 minutes measuring; and a few seconds cutting.

I speed things up as I get going I will assembly with minimal screws tomorrow.

I've already figured how the box is going in; I will have to take off my passenger door to do it; along with the seats out. I will have some more interesting pics tomorrow.

The guide is on the outside of the cut here. To keep the saw from binding, the support is at the guide; this will pull the board away from my blade to keep it from pinching; another chair that is slightly smaller is there to keep it from bending too far and from falling.

Here is a picture of the test cut and measurement; This one was spot on at 34"

Note the guide was on the inside of the cut here; the blade is on the outside; distance of the blade to the rim was 1 1/8th inch plus 32 and 7/8" (the guide position)

Thanks for looking

 

[The_Grimy_One 10+ year member]

Looking good! What exactly did you apply on the metal? And how did you apply it?

 

[Rawr-DQ 10+ year member]

I used a roofing silicone

Paint on; messy; but works. Got the idea based on some thread about sound deadening on some other forum. They were testing and looking into all kinds of stuff.

 

[Flastrongman 10+ year member]

I have a way easier way of getting accurate cuts with a skil saw. I'll show you when you come by. I even do large kerfs with mine.

 

[Rawr-DQ 10+ year member]

Other than a rip fence; what would you use?

Keep in mind I don't have the luxury of a garage.

 

[Rawr-DQ 10+ year member]

Look ma no screws!

I love my corner clamps for sure; I also love clean even cuts; very few gaps.

I line up my clamps; test fit; rub my finger at the seems and adjust the clamps till I don't feel any edges; tighten one side of the corner clamps; raise the board; brush glue; drop; clamp corners; add big clamps near corners and tighten each back and forth; add center clamp and tighten; then finish cranking all three down till the glue completely fills the voids.

 

[Rawr-DQ 10+ year member]

Ok well I'm going to cut the ports and put elbows on them!

Just wanted to make that clear; However 6" elbows are harder to come by than I thought; so I'm gonna visit a sewer guy I know or order them online.

Today I'm going to wire the amps and cut the ports; going to leave it sealed.

I've found out that my engine battery (a kinetik 6800?) went bad; doesn't charge.

Using a Optima d3100? as a start battery; then disconnect it; engine runs without; tried charging it at 2k rpms for 20 min; but unless it's totally dead; it wont even put the windows down or unlock the doors.

On to the {PICS!}

 

[Rawr-DQ 10+ year member]

Ok well I got to cut the ports; then it rained and lightninged, so I went inside. I got back out and went ahead and painted it with the same silicone I had before. I figure it will seal better when I put the cover on.

The ports are 15.5 inches; changed the peak; but I have enough room for some elbows which should give me 6-7" longer port; still a cry from the 30" planned, but we'll see what happens. I'm going to test it sealed first; then bandpass w/ 15.5" ports; then with ~21-22" ports; and so on.

Legend:

Red is the 30" port

Orange is the 22" port

Yellow is the 15.5" port

Green is a 6.83 Cubic Ft sealed box

It was a tight fit!

 

[Rawr-DQ 10+ year member]

Painted with silicone