Thought it might be best to start off with what my current setup is or at least parts of it. My Dust collector is a Grizzly 1029 2 hp operating on 220v. It had a 5 micron bag top and bottom when purchased and was upgraded to a canister filter from Penn State. My collector is located in the attic of my shop in a insulated enclosure and a 12x24 filtered return to the shop. Power is controlled with a Long RAnger remote.
Ducting I used is 4 inch thinwall PVC. We will get into ducting and turning corners later. I have limited amounts of Flex hose in 4 and 6 inch. My bblast gates are a combination of homemade and manufactured plastic gates of two types. Since the Dc is located in the center of the shop ducting goes out in a spider like orientation. Ducting to machines is split in several places by use of wyes and boxes (made from Shop Notes plans).
I have a cyclone based on some plan I found somewhere and a control box on it based on Shop Notes plans expanded. I recently added a Dust Deputy cyclone and may do away with the wooden cyclone.
DC Room under construction on the left.
Chip collection box and ducts to DC in attic on right.
Another view of lower ducts and chip box.
Above is Dust deputy with connections turned on the lathe to adapt openings to 6 inch flex hose. Ducts attached to ceiling spread to machines from this point. Of note here it is best to keep Duct runs as short as possible and as straight as you can get them. Any turn should be gradual and not an immediate 90 degree. This can be done with purchased wide and ducts or put two 45 angles together with a short 4-6 inch piece of duct between them. More on this in the next entry about choosing and installing ducts and blast gates .