|Project by Matt||posted 09-02-2015 05:15 PM||961 views||1 time favorited||2 comments|
I made this downdraft table into the end of my workbench the occupies three walls in my shop (You will see when I post the shop tour). I based this idea off of Bob’s from “I like to build stuff”.
I made this out of 3/4” OSB and 1/4” luan. I made the one end deeper than the other so that the dust would slide down to the DC port at the bottom. The DC port is a 4” port, and works decent.
When I was putting the holes in, I hooked up the DC and turned it on. This initially sucked the luan down and then I drilled the holes until the luan came back up level with the bench, so I knew how much suction I could get and keep the surface level to work on. I could have had more suction, but I didn’t want the luan to be dipped in or uneven. That’s the only way I knew how to do it, and it works ok. I also added a blast gate to it so I could turn it on and off when I wasn’t using it (which is not often, as the suction isn’t the greatest).
In hind sight, this is an application that requires a “higher pressure / Low volume” system as opposed to the opposite which is what my 2 HP JET DC is. I need to really hook it up to my shop vac, but I think that I will just build one into my 4’x8’ assembly table that I will be making in the near future. That will have it’s own dedicated shop vac that I found at a garage sale for $5. :)