Little more progress. I got the bottom end cap glued on with some Loc-Tite PL Premium. I tried pulling the plastic liner off in the tube, but it wanted to pull too much paper off as it went around. I ended up sanding it off instead.
I put several coats polyurethane on the ID of the tube to seal it off. I wanted to get all plastic off, but since it was a pain, I decided to just seal it in.
I took this pic to reference size.
Now I got that I have the interior of the tube all sealed up and the end caps glued on. Both my 1/2" plywood boards (top/bottome) didn't exactly center up with the MDF and I knew it would give me some more work when I got to this point.
Because I'm trying to make this look like my SVS, I only want to put a single layer of velvet on the sub and want it to be smooth. Since the endcaps both over hang one direction 1/16" (or less), I need some type of filler that will adhere to the polyurethane finish and glue, does anyone have recommendations for this? All I want to do is build it up and smooth it out into the tube so you wan't notice anything when the sock is on. I should have done like SVS and made the caps just slightly smaller than the OD of the tube and center it... I'd be only needing the sock at that point if I had.
I tried to use the glue to smooth it out... But that didn't turn out like I hoped.
As always, I love pics:
When I build another one, it'll be much faster, I've figured it all out now.