OK, I do not have money to invest in a real DC system, so am using a large shop vac. Has worked fine to date, dedicated to one machine at a time.
Just build NICE router table with baffled dust collection system, author claims it collects dust real well. Cabinet runs DC piping from back into cabinet section where router is located. So it is not a design where the DC piping comes up underneath the router (a better design in my opion). Can't change it as area below router cabinet section is used for drawers.
Well, IF I am not trying to use dc for the fence and cabinet at same time, collection is "poor". If I DO try to use DC for fence and cabinet at same time, DC is minimal.
Question: Is it cabinet design, or the fact that a vac does not have the HP needed to really move the dust? I am using 2.5" piping and accessories from Rockler, so that can't be the problem. Have checked for air leaks - none found.