Downdraft table

[ictoos]

Hey Y'all

(I did marry a Southern Belle after all)

I'm trying to get the shop in some sort of functioning state and one of the projects I started was a rolling utility cart that would have as part of it's top, a downdraft table.

The dimensions are 32"x32"x32" That will fit pretty nicely under the extension wing of the table saw with a few inches off each side for safety(Of fit)

My question is this:

Look at the pic below and see if I'm making a good choice in the dimension of the down draft element. You can see it's integrated into the top. The LxW is 24"x24". The sides(And hence the HEIGHT) of the chamber will be 3.5" tall with a 1" thick support crossed in the center underneath the peg board for support. This leaves about 2.5" for air flow.

I'll be hooking it up to the shop vac at first, then adapting the Oneida Super Dust Gorilla dust vac afterwards.

Should it be deeper?

The second level will be 9" below the first. I can make the whole 9" part of the downdraft chamber or any part of it, but I lose a big part of my storage.

The circle in the second pic would be a 2" port.

Refer to the schematic, I can run a single 2" port out the one port (d) or in an alternate set up run two ports out (e) and join them up at (f)

Thoughts?

K
www.flickr.com/photos/26685985@N07/4627963121


www.flickr.com/photos/26685985@N07/4628565076





www.flickr.com/photos/26685985@N07/4627963137

Cross posted on the "Other" place too.

K

[imahic]

I built a downdraft table but mine is bit larger than what your dimensions show. You could build the same thing in the size you are showing just as easy though. I am not sure whether the shop vac is going to be enough suction for you though. I used an old fan unit from a central air unit. You can probably get one from an HVAC guy in your area for pretty cheap if not free. There are some pics at this link: worldofwood.proboards.com/index.cgi?board=genwork&action=display&thread=2984

[rrich]

When Rockler has the Delta one on sale a few years ago in the $40 range, I bought it. I can connect it to my dust collector. It works.

HOWEVER

It is not the most convenient thing to use. Drag it out, connect the DC and it is about 6" higher than the bench top. Even though my shop is in a large 2 car garage, I don't have the room to store it in a convenient place. There is no way I could put it on wheels.

Besides that would put my two legged dust devil out of a job.

IMHO - If you can't make it convenient, don't waste your money. Of course if you move your shop to the basement, it may be a different story. When I build my 40' by 60' shop then the down draft table will grow legs.