That’s very kind of you, thank you, @LiamN
Using the 50mm hose would be my preferred option too, if it’s flexible enough. The problem for my setup, is the connection to the trunking is the ceiling of the enclosure, but not quite in the middle of the cutting area. With the Sweepy directly below the port, there is a horizontal travel distance of 480mm to the back left, 470mm to the back right, 790mm to the front left and 765mm to the front right (when moved bty hand, so cutting area would be less). The port is 385mm above the top of the Sweepy when they’re in line (i.e. the shortest distance). To be flexible enough, it would need it to cover all those points without tangling or fighting back and causing extra ‘stress’ on the router. To be honest, I didn’t realise the ceiling port was so off-centre until I measured it today (the Shapeoko was moved from it’s original position) so I could relocate the port to be more central to the movement of the Sweepy, rather than the wasteboard - a schoolboy error! I’ve already re-designed the installation so often, doing so would be almost predictable!
This is what it looks like at the moment:
One consideration for thinking about the Rockler hose is that it appears to expand and ‘retract’ as it’s used, which I guess the 50mm doesn’t do?
I don’t have a 3D printer - and buying one is definitely on the cards for the forseeable future - but thanks for the offer!