In the Den I have two recessed lights. This is another way to day I have two structurally sound, bear beams access points to mains voltage – with access to an emergency off button even. So if I replace one of those with an arm mount, the ceiling is the limit. Hahaha.
I’m thinking of going with a lazy Susan style mount, upside down of course, and then desk lamp style arm. I’ll probably go with bicycle brake lines
Bowden Cables. That’s what they’re called. Looking into efficiency of power transmission have me this. Really cool article, not really what I’m doing, but it gives me an idea of what I’m looking at as well as a better understanding of waking kinematics.
So Bowden Cables are definitely in the running.