Hey Folks,
Hopefully a quick easy question. I'm about to make an under table dust collection box for my Jessem Mast-R-Lift Excel II Table. I have the basic plan figured out, and then I ran across a Youtube video from Ed Stiles in which he demonstrated using a dedicated outside air (from outside the box) source directed to the "top" of the router - so that the air it's pulling in isn't full of dust. Basically a short piece of 4" air hose connected to the "top" of the router with the other end terminating outside the dust collection box. (see https://www.youtube.com/watch?v=lIzyEHZz3z0 beginning at approximately 6:55) It makes sense at the logical level, but seems to be a rare design feature and I'm wondering if that feature is un-necessary overkill in practical terms. I.E. - does the outside air coming from the standard vent hole(s) in the box and the air movement from the dust collector draw keep the dust levels in the box at a low enough level that you're really not drawing the dust through the router. Using a Bosch 1617 just for reference.
Thanks for any insights, opinions and real world experience.