I built a router table extension for my table saw. Upon using it, I
noticed that non-though dados were a problem as far as dust collection
was concerned. And I want to do a lot of non-through dados in the
middle of panels. So... I found a web site:

http://www.oak-park.com/usa12.html

where they had a vac-plate with a couple of holes in the plate for dust
extraction. I decided to drill a 1.25" hole in my top, about 10" to
the left of my bit, and put a Rockler dust port on the bottom of the
table. Now, non-through cuts toss the dust right at the hole in the
top and the dust is extracted. The problem is, when the material
covers the hole, the vac starts working pretty hard (because the port
is mostly obstructed), and begins to work as a very effective
hold-down.

Any ideas on a way to add a vac pressure release somehow? Is there
anything made for something like this that doesn't cost an arm and a
leg?

I thought of actually adding yet another hole and dust port, and some
sort of Y- or T-fitting. So when one hole is covered, the other is
open. Problem is, that would start to add quite a bit of "crap" under
the table that I don't know if I have room for.

Any ideas appreciated.

Thanks!
Phil

Thanks!
Phil