|Forum topic by HorizontalMike||posted 11-30-2011 03:06 AM||909 views||0 times favorited||6 replies|
11-30-2011 03:06 AM
I have been busy building a horizontal mortising machine that I have/am designing to include dust collection. I have a HF DC unit with a 4in flexible hose. My Triton router takes a 1 1/4in hose that I am linking to a box that hooks up to the 4in main DC hose. Additionally, I am slotting the bottoms of two sides of this box to suck in router dust that falls.
My 2hp HF DC 4in hose has ~12 1/2 sq.in. of area that it pulls at a stated 1550 CFM air suction capacity. I am using LESS than this capacity in my mortise DC box design (maybe 6 or 7 sq.in.)
MY QUESTION IS: At what point (smaller area) does my suction capacity diminish as to become pretty much dysfunctional?
I am going on the assumption that sizing a small bit under 4in might increase suction/flow a small amount. Am I correct/incorrect in my thinking here? I only use my DC on one machine at a time.
-- HorizontalMike -- "Woodpeckers understand..."