This is what I have for now. It’s definitely a redneck version. I plan to have the hose drop from the ceiling eventually. I think Peter H has some photos of what he has done that is similar to these pictures.
I am currently in the process of moving my lr4. I am also making a better version of the arm, I am happy to share the files when I’m done. This was the old setup, not the prettiest but worked very well. The arm can swing both directions.
Is that 2.5" hose? I need to move my hose overhead, keeps catching on stuff along the gantry or the table edge. Do you find that the hose tries to contract when the dust collector is on? Wondering if it will be too much pull on the gantry as it fights to stretch the hose out during use.