Hi everyone. Just a “weekendwarrior / hack” here. I was hoping youcould give me your opinion on a proposed setup for my small garage workshop….specificallythe proper duct size to use. Afterlooking at countless threads I’m still having a hard time nailing this piecedown. Like many hobbyists, I have a 10year old stock Harbor Freight unit that I’m upgrading. For what it’s worth it’s “rated” at 2HP and1550 CFM. I just purchased a WynnCartridge Filter and the 5” Super Dust Deputy. I anticipate streamlining the configuration of the unit to mount theintake directly on top of the SDD, but with little or no flex hose in anattempt to maximize the air flow. Knowing that I’m still looking at aninvestment in piping, blast gates, etc., I’m up against the wall as far as anyfurther upgrades to this HF unit.
I intend to have most of my machines grouped in the centerof my workspace (along with the dust collector), so my goal is to have a veryshort main intake trunk line…perhaps 6’- 8’ once the duct coming from the SDDreached the floor.
Since the SDD comes with a 5” intake port I’m leaningtowards a 5” main trunk line. Whatever Idecide to use I’d also like to maintain that size all the way to my machines ifpossible. From what I’ve been reading Ibelieve I should definitely stay away from 4”, but I’m concerned about going toa 6” main with an under-powered HF unit.
I’d appreciate your thoughts… Thanks!