I've built a new router table. I can connect my shop vac either to the fence or to the box below the table. I was wondering which you think best. My first thought was the box to draw more air past the router to cool it, but most I've seen have it connected to the fence.
(Furniture Making Forum)
From contributor K:
I would run one to the box and one to the fence. I have a 1hp Delta running to my fence and when I run panels, a lot of the heavier dust goes into the cabinet. What I'm going to do is run a 4" hose and go into box about at the router height, and then run a 2" hose to the fence going back into the 4" hose. I don't think it will be enough to catch it all with only a 1hp, so when I get some money, I will upgrade to the next level. Good luck and remember, you can never have a big enough dust collector system.