re: Saw Dust Collection Challenge

Did much the same with mine…except I somewhat crudely built  the intake out with Gorilla tape. Except for thick pieces of wood, it doesn’t interfere with the cut…and even then it bends out of the way. Does help a lot…especially when I bother to hook up the shop vac… ; ) 
My miter saw’s discharge faces the garage door and dust collects on the cross supports.
Usually I remember to vacuum them off before I open the door… DOH!  🙄

Thanks for posting!