OK.. I'm looking for an elegant solution to use a 6" DC line to catch 90% of the dust from my Dewalt 12" miter box.
This should be a nice engineering challenge. Taking into account miter and bevel (dual bevel) combinations there are many angles to which dust will fly.
I don't think a box surrounding the whole dust potential area is going to work effectively. That would have to cover about 26" wide by 18" high. That's a lot of area for a 6" (27 sq inches) DC line to cover.
If you are wondering why 6".. google Bill Pentz.
I have watched the dust fly from my saw and 50% or so slams right into the back pivot points. The DW has a pathetic 1" port at the back. To a shop vac, it maybe gets 50% of the bigger stuff. The advantage to this port is that it stays aligned to the blade regardless of bevel or miter position.
I'm thinking some kind of 6" port that better encases the area where most of the dust will fly.