Improving Dust Collection on the Sawstop Contractor Saw

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Blog entry by Jeremy Greiner posted 03-03-2012 02:15 AM 5702 reads 3 times favorited 4 comments Add to Favorites Watch

Everything is moving along pretty well, I’m trying to improve the dust collection on my saw and I’ve done a few things I thought I would share.

I lined the bottom with some adhesive backed foam weather stripping, this produces a pretty tight seal around the base of the saw as it sits on it’s box. I’m sorry I didn’t take a picture of the bottom of the saw before moving it into the wooden base and I’m not lifting it off to take a picture.

I made a false drawer that is a combination of ideas from zzzdoc and tedth66 that they did for their cabinets. I need to add a front and a handle so it will actually look like a drawer. But it’s great it angles the sawdust towards the dust collector port and I can remove it easily in case I drop anything down into the saw and I can’t get it out any other way.

Here is the front view with it inside the dust collection cavity under the saw.

Here is a side view.

And here is a top angled view I used the same adhesive backed foam weather stripping around the edges this makes for a super snug fit so I shouldn’t have to worry about air loss at least through there.

I added some craft sheet foam over the hole in front of the saw. It is in two pieces so it can move freely from 90 to 45 degrees without any problem and it helps close up the hole around the wheel. I forget what magazine I got this idea from but it seems to be a good one.

I tried the same thing for the back, hoping that I could keep it covered for 90 degree and 45 degree cuts, but when I rotate the blade to 45 degrees the foam just gets in the way and the way it rubs along the belt etc doesn’t seem good so I’ll be removing this foam and sticking with the small wood panels that tedth66 and zzzdoc used.

The goal is to get all the dust directed to this PVC fitting I have in the saw’s base. On top of that I have a dust right fitting that allows for quick detachment. I have another fitting that has a smaller port for the dust collection on the blade guard and I’ll switch to that once I get that set up.

My next step is to work on the permanent part of the outfeed table, I really want to get that set up soon it just feels safer to me than using shop rollers. Gonna look over tedth66’s and zzzdoc’s posts again to see how they made theirs and attached it to their saws.


-- Easy to use end grain cutting board designer:

4 comments so far

View Woodwrecker's profile


4148 posts in 3572 days

#1 posted 03-03-2012 03:04 AM

Your improvements on that nice saw should do the trick really good.
That weather striping to seal in the vacuum is smart.

-- Eric, central Florida / Utor praemia operibus duris

View hjt's profile


826 posts in 3135 days

#2 posted 03-06-2012 04:36 AM

Very good Jeremy. I’d like to get my dust collecter working better but since its all opened (not a closed cabinet) it would be a little project.

So have you noticed a big improvement?

-- Harold

View RHaynes's profile


112 posts in 1617 days

#3 posted 03-17-2014 09:06 PM

Old thread, I know, but it’s really the only place I see where an owner of a SawStop CNS has talked about the DC on it. They put a nice shroud that funnels dust down to the 4” collection port, but it’s got such huge gaps between that shroud and the bottom of the table that it still allows a good amount of dust to miss the shroud altogether and wind up on the floor under the saw. I like your solution of making your own base, in essence sealing that dust into the cabinet of your design. But I have the CNS stand and mobile base and would like to continue using them. I’m wondering if anyone else has tried modifying their CNS to close up the gaps between the table and blade/DC shroud in order to get more dust into the DC system and less on the floor.

For the gaps where the height and bevel angle adjusters ride, have you tried magnetic sheets?

-- "Sometimes the creative process requires foul language." -- Charles Neil.

View JDavis3rd's profile


1 post in 1710 days

#4 posted 09-24-2014 04:42 PM

Hi RHaynes,

I agree. I wondered how all the saw dust was hitting the floor. I looked down from inside the saw and could not believe the gaps on both sides of the funnel. It is as if someone forgot a few pieces. I was hoping SawStop would step up and offer us something but judging of the age of this thread it does not appear they will.

Here is my thought. How about draping a flexible sheet from the right top edge of the table top down towards and slightly into the funnel? There is a shaft, maybe 3/4 inch diameter, that could be used to attachment. Perhaps wire ties would work. If necessary the upper corner has a slot so the sheet might be allowed to slide in and out of this slot when adjusting the angle. The same is true for the opposite side of the saw.

How about it SawStop? Can you help your customers with this issue? CNS175-TGP36 with mobile base

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