I'm in the process of running dust collection ductwork for my new shop. I'm installing my ductwork above the ceiling before the ceiling goes in. I'd like to put in a ceiling drop for a future CNC router. I have a general open floor space of 12' wide x14' long. I don't know what size CNC I'll end up with so its a bit of a guessing game but I figure I'll size for something that can process a full 4x8 panel and go from there. (A few years ago I go interested in building a 8 foot MechMate) Within this space, where would the best place be to locate the ceiling drop? In the center of the space, toward one end, on a side? I watched on video where the guy built a swinging arm that allowed the flex hose to follow the gantry. I think this required the ceiling drop to be at one end. Is this common and required? Any suggestions?