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Router Table Dust Collection

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Forum topic by Redoak49 posted 05-11-2016 08:16 PM 530 views 0 times favorited 6 replies Add to Favorites Watch
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Redoak49

1964 posts in 1456 days


05-11-2016 08:16 PM

I am building a new router table and a priority is dust/chip collection. I will run a 4” pipe to it and plan to tee off with a 2-1/2” to the top four through the fence.

My concern is collecting from the bottom. Ok I will have the 4” come in near the bottom of where the router is. My question is where to put holes for air to come in. It will suck air down from around the router bit. Do I put some air holes in the front and back of the cabinet under the table but up high? Or am I just over thinking this.


6 replies so far

View a1Jim's profile

a1Jim

115207 posts in 3045 days


#1 posted 05-11-2016 08:23 PM

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conifur

955 posts in 619 days


#2 posted 05-11-2016 08:37 PM

opposite side down low.

-- Knowledge and experience equals Wisdom, Michael Frankowski

View newwoodbutcher's profile

newwoodbutcher

552 posts in 2318 days


#3 posted 05-12-2016 02:29 AM

I’m thinking the kind that has the router inside a closed metal box with a split 21/2” hose where one end of the hose goes to the fence and the other to the box. I don’t have that set up but one day soon I will.

-- Ken

View JohnDon's profile

JohnDon

61 posts in 637 days


#4 posted 05-12-2016 02:48 AM

One thing to consider is air flow through the router. To my knowledge, most routers pull air in through the top end (the bottom end when mounted in a table), and exhaust through the bottom (closest to the bit). I assume this is in large part to keep dust out of the motor and router interior.

I recall- but can’t locate- a plan where the mounted router is surrounded by a box. The air inlet is a 4” hole at the bottom of the box, and connected to the router air intake vents at the top/bottom by a short section of flexible DC hose, which will press fit over many router housings. The air outlet was at one side of the box, near the bottom.

When I ever get around to building a bottom collection, I plan to do that. It makes sense, because it can only help to increase air circulation through the router, helping it stay cooler, as well as helping keep dust out of the router. The router is particularly vulnerable to dust buildup when mounted upside down.

View Fred Hargis's profile

Fred Hargis

3950 posts in 1961 days


#5 posted 05-12-2016 10:52 AM

I built my version of Norm’s table over 15 years ago, one difference being that I ran 6” to the cabinet and 4” to the fence. The cabinet make up air comes in through the front opening near the bottom of the door. Works just fine and never a problem for the router motor.

-- Our village hasn't lost it's idiot, he was elected to congress.

View firefighterontheside's profile

firefighterontheside

13528 posts in 1324 days


#6 posted 05-12-2016 01:38 PM

This works for me. I ran 2 1/2” hose to the cabinet. Then out the back of the cabinet I ran a smaller hose up to the fence. So the fence collection gets pulled into the cabinet and then out of the cabinet thru the larger hose. I have no extra makeup air holes. Some chips settle on the cabinet bottom, but just at the corners outside the airflow path.

-- Bill M. "People change, walnut doesn't" by Gene.

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