I've run 6" S&D up to each of the machines. I've tried to plumb the S&D right up to the self-made 6" ports, but getting all of this to fit together is not trivial. I'm thinking of plumbing the last 2 to 3 feet with a flexible pipe of some sorts. These are stationary machines, I just want to use flex to simplify the connections. Airflow-wise is good quality 6" flex hose better than say 6" flex aluminum HVAC pipe? 10' of HVAC is $10 at a shop 2 miles from here,
10' of host is at least $50 via mailorder.I'm familiar will Bill Pentz's site. That is where I got the inspiration to even try 6". It's not been bad at all, but the flex in the final 2 to 3 feet will make it much, much simpler. Bill replied to my email and said he uses 6" flex hose, but noted his tools are moveable. In my case it's for the TS, Jointer, MS, and DP, all of which will be stationary.