All Replies on Top Hat Baffle Design - Outlet Length and Angle

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Top Hat Baffle Design - Outlet Length and Angle

by kocgolf
posted 01-26-2017 06:47 PM

5 replies so far

View Notw's profile


740 posts in 2355 days

#1 posted 01-26-2017 07:45 PM

My motor and filter sits about 3’ above my thein baffle and is connected with a piece of PVC and a piece of flex hose. I haven’t noticed any issues from this arrangement.

View Holbs's profile


2258 posts in 2631 days

#2 posted 01-27-2017 02:49 AM

Your vertical duct has not bearing on efficiency of the top hat itself other than the “too long of a run” issue when combined with the rest of your ducting.
Same “theory” goes for your immediate turn: all depends on how drastic of a elbow will be there (from the looks of your drawing, that is a serious turn).
Why not put the barrel and top hat ontop of the bench top, leaving the underneath for some kind of storage. Or wall mount/shelf up higher for the barrel as high as it goes.

-- The Carpenter Bee is derived from the Ancient Greek word wood-cutter "xylokopos/ξυλοκὀπος"

View kocgolf's profile


402 posts in 2780 days

#3 posted 01-27-2017 04:29 AM

I’ve definitely considered going high with the entire unit, including barrel, in a different location. I’m just not sure how to empty a barrel of sawdust sitting suspended 4 or 5 feet up in the air. I would really like to try and save the majority of that benchtop space and not have anything sitting on top of it. I would sacrifice a “hard turn” on the ductwork over losing the whole counter surface space.

View WoodES's profile


158 posts in 2292 days

#4 posted 01-27-2017 06:01 AM

kocgolf – If you can mock it up before committing the final arrangement try it out to see if it works. The only drawback I see is ability to empty the barrel.

I want to move my dust collector sit directly above the separator and turned 90 deg (inlet in the vertical axis) to have the collector inlet inline with the outlet of the separator and then duct the exhaust to the outside. The problem is emptying the barrel when full. Can’t pick up the DC & Separator without three people to lift and separate.

I wonder if some sort of skirt could be fashioned to allow the chips to fall into the barrel and allow the barrel to be slide out from under the separator. The skirt could fashioned out of a thin neoprene strip or similar material. That would certainly free up some floor space for more tools! Hmmm… maybe a future shop experience.

View kocgolf's profile


402 posts in 2780 days

#5 posted 01-27-2017 03:30 PM

I have thrown around similar ideas. Even putting the entire thing in straight vertical alignment but hoisted up so the bottom of the barrell is about 5 feet high. I was thinking of using a “trap door” method to empty, but that would require a bag setup like I’m trying to get rid of! I fear that if there was just another barrel underneath to “catch” the drop it would just make a huge mess and put all kinds of dust back into circulation. I think I will probably stick with this under the bench plan and just skip any kind of extreme “turn” from the output.

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