Dissatified with Norm's router table dust collection setup

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Forum topic by Rick Dennington posted 09-06-2009 09:28 PM 3194 views 0 times favorited 4 replies Add to Favorites Watch
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Rick Dennington

5864 posts in 3195 days

09-06-2009 09:28 PM

Hey all;
I, like a lot of you out there, ordered the plans and video of Norm’s latest router table, and built it about 4 months ago. I built it exactly like the plans called for and put the PVC “T-Y” dust connection fittings in the back, glueing them in. I ran the 2 1/2” hose from the dust port at the fence down to the top opening in the T, sealed if off to prevent air loss, and hooked up a 4” line from my d.c., which is enclosed in a room about 20 ft. from the r.t., and reduced it to a 2 1/2” to fit the PVC. I drilled 4- 1” holes across the bottom of the door for the “makeup air” as Norm called it. I used 1/4 ” plywood instead of Plexy. That should make no difference.
This setup really”sucks”(no pun). It is way tooo small to draw air from both places. Frustrated, I disconnected the 4” line going into the box, and sealed it off, and moved the 4” reduced to 2 1/2” to the fence.
How many of you have this same problem, or had it? The PVC being glued in means I’d have to tear the back off and start over again. I’d like some feedback on this, pros and cons, and a possible fix. Rick D.

-- " At my age, happy hour is a crap and a nap".....

4 replies so far

View a1Jim's profile


117095 posts in 3577 days

#1 posted 09-06-2009 11:12 PM

Norm like everyone learns as time goes by his more recent work is much more advanced than even a few years ago,so if he was designing it today I’m sure he would make it differently.

-- wood crafting & woodworking classes

View DaneJ's profile


56 posts in 3209 days

#2 posted 09-07-2009 04:22 AM

I made Norms router table a few years ago.

I deviated from his DC design in the following ways:
1. 4” DC port in the back is a female and I use a 4” male-male “adapter”... originally I had a male connector glued in but when I moved the table around I kept getting in the way, did I mention that I put it on wheels because of limited shop space.
2. The only hole in the door is a finger hole; I figured this out by putting tape over the bottom holes. sometimes there is a little sawdust on the floor of the box, but that is easily taken care of by opening the door, turn on the DC and push the sawdust back with my hand or a dustpan. I had thought of adding blast-gate style valves but after running a big project with all of the holes taped I figured that a blast gate is not needed.
3. I tried a bunch of different arrangements for the fence suction… none seemed to work as good as drawing everything down through the router bit hole, so I omitted it.

-- Dane, Fairview Pk, OH. The large print giveth and the small print taketh away... Tom Waits

View EEngineer's profile


1102 posts in 3614 days

#3 posted 09-07-2009 07:10 AM

I also have the “Norm Table”. I don’t have a lot of problems with dust collection. I used the same 2 1/2” collection, top and bottom, driven with a shop vac. I have no holes for make-up air in the door! Figured I needed more up top than in the router cavity. It works OK except; the fence collection does well with sawdust, it sucks (not literally) for chips. Whenever I take a deep cut that generates lotsa chips, they clog the inlet and don’t collect very well on the fence. I’ve been thinking about a bigger box and larger collection tube for the fence and reducing flow to the bottom of the table. No firm decision or design yet.

-- "Find out what you cannot do and then go do it!"

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Rick Dennington

5864 posts in 3195 days

#4 posted 09-08-2009 02:38 AM

Thanks guys, for the input. I’m re-doing my d.c. system now on the r.t.. I completely gutted the inside of the box,originally made like Norm did it. Talk about sucke!! I’m glad I glued the T-Y connection with Gorillo glue, cause it popped right out with a little persuasion! I did away with the 2 1/2” port at the top, made a 3/4” plywood box with an accrylic top(so you can see the dust & chips leave). The box is 4” deep and 7” long and 4 1/2 ” high. Had to have enough heighth for the 4” hole I cut for the adapter. Also cut a 4” hole at the bottom, and will connect a “Y” for both hoses. It’s gonna be a lot better. Rick D.

-- " At my age, happy hour is a crap and a nap".....

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