Vacuum LocLine 2-1/2" Coupling for Dust Collection

I wanted an adjustable dust collection solution for my drill press. This solution uses a 2-1/2" Loc-Line [1] mounted to the drill press with a 14" 2x4 [2]. It joins with a regular 2" shopvac hose via this thing (3D printed coupling).

The coupling fits into Loc-Line very snug, so I recommend using hot air gun for 15-20 seconds to lightly soften the Loc-Line while pushing the coupling in. The inside of the coupling is tapered for the shopvac hose to fit in snug, but is also easily removable.