duct diameter and finding fittings
Thanks for all the comments. My plan now is to run 8" duct from the cyclone through the wall (from another part of the building) into the workshop. Then reduce to 6" for the main line and all drops down to the blast gates. Some pieces of 6" flexible tubing will have to be used between the blast gates and the ports on the tools. Then modify existing ports, add new ports, or hoods etc to tools to bring as many as possible up to 6" capacity. Hopefully this will capture most of the dust as well as the chips. Most of what I will be using is 26 gauge HVAC duct and fittings.