my 2004 hawk 226vs has a 7/8" hole directly under the bottom holder.. that is where the 3/4" to 1"adapter is.
in the picture the elbow was the connection to my old shop vac. when the new cyclone vac was hooked up that is now replaced with the hose from that vac. everything is dry fitted so changes can be made any time.
the 2 reasons i made the adapter enclosed are
1) large pieces can not get into the hose and block it....
2) the 5 (4 sides and top) 3/16" holes increase the overall pressure in the area close to the adapter. in my tests before installing when the vac was running dust dropped as far away 4 inches was pulled into the holes at about 50 to 60%. the closer you get the higher the %. so as the dust that drops from the slot in the table it falls almost straight down giving me , my guess is 95 to 98% of all dust trapped. with the belt to the beater on the vac removed the suction power increased so much i also drilled 4- 1/16" holes between the 3/16" holes to ease the strain on the motor.
if you have seen the posts i have made in the lase week or so i have not had to wipe down the frame through all of these.
that being said, right now i am using spiral REV blades so dust does pile up on top of the projects. for that i have a plastic dish to the side of the cutting table and i use a paint brush to sweep the dust into.(not pictured)
i confused myself but did that fill in the blanks for you?