Downdraft Dust Collector

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Project by Notw posted 10-20-2014 01:07 PM 30435 views 25 times favorited 17 comments Add to Favorites Watch

Simple down draft table for sanding. I probably went a little overboard on the construction since I used locking rabbet joints at all the corners. I was going to use pocket holes but then decided it would be better to practice some joints than do it the easier way. I used some scrap plywood to channel the dust to the middle and plan to further seal the cracks with some silicone sealant. During dry assembly I realized the longer side boards had a bit of a bow to them so I came back with some steel rope and a turnbuckle to pull it all together. Not fine woodworking but it got the job done and once the peg board is on top it can’t be seen. All said and done any dust that stays out of my lungs is well worth the effort.

17 comments so far

View Bricofleur's profile


1481 posts in 4357 days

#1 posted 10-20-2014 02:27 PM

It must be very effective. Good work. Thanks for sharing yours since I have in mind to build one as well.



-- Learn from yesterday, work today and enjoy success tomorrow. --

View harrywho's profile


123 posts in 4396 days

#2 posted 10-20-2014 03:17 PM

Nice job. On my list for a winter project, been coughing a lot lately!

-- Harry, Indiana

View timbertailor's profile


1594 posts in 2588 days

#3 posted 10-20-2014 03:40 PM

Nice job. A great addition to any shop.

Thanks for sharing your design with us.

-- Brad, Texas,

View joshuam39's profile


62 posts in 2546 days

#4 posted 10-20-2014 09:08 PM

Looks nice. how well does it work? Anything you would change?

-- Let's go Pens!

View Andre's profile


4622 posts in 2970 days

#5 posted 10-20-2014 10:39 PM

Got to build one of these real soon, sanded a bunch of cedar a still feel stuffed up. like the design of yours, how well does it support weight?

-- Lifting one end of the plank.

View Notw's profile


1055 posts in 2917 days

#6 posted 10-21-2014 01:12 AM

I haven’t had a lot of time to test it yet, but so far any dust the sander makes is quickly pushed down into the holes and sucked away.

If I were to change anything it would be making sure the plywood isn’t bowed. I plan to seal all the cracks below the pegboard with a bead of silicone as soon as I get time.

The horizontal supports under the pegboard are a must and do a pretty good job of supporting the weight I’ve put on it so far.

View Hawaiilad's profile


3379 posts in 4185 days

#7 posted 10-21-2014 08:14 AM

Nice project. Did you use a shop vac or a dust collection unit. Just wonder how much would be too much suction.

-- Larry in Hawaii,

View Notw's profile


1055 posts in 2917 days

#8 posted 10-21-2014 12:16 PM

I use a 3HP shop vac with a dust deputy separator and 2.5” hose

View MrFid's profile


910 posts in 3068 days

#9 posted 10-21-2014 12:43 PM

Very clean project and it makes for a very clean shop I’d imagine.

-- Bailey F - Eastern Mass.

View Bricofleur's profile


1481 posts in 4357 days

#10 posted 10-21-2014 02:41 PM

If you’re planning to seal the joints with silicone, how about using construction adhesive instead so it will lock the bowed plywood at the same time. By the way, using a Deputy is the answer here – good idea !



-- Learn from yesterday, work today and enjoy success tomorrow. --

View NormG's profile


6507 posts in 4168 days

#11 posted 10-22-2014 01:13 AM

Simple and effective downdraft table

-- Norman - I never never make a mistake, I just change the design.

View bigd57's profile


1 post in 2459 days

#12 posted 11-09-2014 01:29 PM

Nice idea and good fabrication, I have a torsion box for assembly, and your design inspires me to add that to the lower side, and get 2 functions for 1 tool space.
Space is always a problem no matter how large or small your shop is. They seem to shrink with age.

Thanks for you inspiration

View Dirk Van Essendelft's profile

Dirk Van Essendelft

58 posts in 3058 days

#13 posted 11-20-2014 05:12 PM

Did you come up with this design? My dad has the exact same thing in his shop. I’ll have to ask him where he got his design from.

-- Blending Traditional Woodworking with 21st Century Tools

View Notw's profile


1055 posts in 2917 days

#14 posted 11-20-2014 05:14 PM

Not my design, it was based off of many different designs I saw online

View BobSwanson's profile


11 posts in 2437 days

#15 posted 01-19-2019 04:15 PM

Would it be possible for you to share some dimensions? Would you change any of them if you built it again? Thanks!

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