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Overhead blast gates

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Forum topic by Loren posted 09-30-2012 04:24 PM 4310 views 18 times favorited 11 replies Add to Favorites Watch
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Loren

7967 posts in 2558 days


09-30-2012 04:24 PM

Here’s some blast gates I made. I cut up some of those black
plastic blast gates for the external fittings. The outside parts
are made out of 1/2” prefinished maple ply. The inside is 1/4”
markerboard, which I waxed. I’ve seen designs where the
builder used rubber gaskets but I wanted to keep it simple and
the rest of my ducting is far from airtight anyway.

The blast gates work really well and seal better than the
cheap plastic ones I made them from. Gates are accessible overhead
with a pull cord tied to each “ear”, I don’t have to walk around
my table saw to open the gate anymore. Also I can place
the gates closer to where the ducting makes a “Y” and thus
eliminate downstream leakage from having the gates at duct
drops at the ends of the ducting runs.

-- http://lawoodworking.com


11 replies so far

View DIYaholic's profile

DIYaholic

16476 posts in 1585 days


#1 posted 09-30-2012 04:31 PM

Nicely done.
I like the ease/convenience of operation. I’ll have to remember this one.
Thanks for sharing.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View SASmith               's profile

SASmith

1738 posts in 1897 days


#2 posted 09-30-2012 04:58 PM

This looks like a great solution, and self cleaning too.

-- Scott Smith, Southern Illinois

View Lee Barker's profile

Lee Barker

2169 posts in 1761 days


#3 posted 09-30-2012 11:10 PM

Elegant and clever. View Master Blast Gates. Nice work. I’m thinking of several places where these would be an improvement over what I have.

Kindly,

Lee

-- "...in his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

View ,'s profile

,

2387 posts in 2457 days


#4 posted 10-01-2012 12:07 AM

Very nice work Loren. Glad to get to see these as we might be building blast gates of our own soon. I am on the fence with building blast gates or maybe purchasing blast gates. Great job!

Oh, and thanks for the tip on using Her-saf bits on that Panel Router. I have not purchased any bits yet but it is looking as though I will keep that Panel Router and so I will be getting it set up to take over dado cutting. Looking at the Her-saf bits looks like the way to go.

Hope things keep going great for your DC duct work.

-- .

View Loren's profile

Loren

7967 posts in 2558 days


#5 posted 10-01-2012 12:14 AM

My cyclone isn’t all that powerful, so I’m obliged to try to keep
airflow only to one machine at a time… and also the filter clogs
quicker than I would expect. The reduction in suction sneaks
up on me since even when it’s pretty clogged it still gets
the nasty airborne dust pretty well.

-- http://lawoodworking.com

View Andrew Pritchard's profile

Andrew Pritchard

9 posts in 758 days


#6 posted 07-15-2014 01:26 AM

How did you make the flanges to attach to the rest of the ductwork?

View NormG's profile

NormG

4909 posts in 1914 days


#7 posted 07-15-2014 01:33 AM

Great solution

-- Norman

View Loren's profile

Loren

7967 posts in 2558 days


#8 posted 07-15-2014 02:04 AM

Cannibalized plastic blast gates.

-- http://lawoodworking.com

View TheWoodenOyster's profile

TheWoodenOyster

1203 posts in 845 days


#9 posted 07-15-2014 02:12 AM

Like it. I might use those on my first DC system.

-- The Wood Is Your Oyster

View tyvekboy's profile

tyvekboy

839 posts in 1923 days


#10 posted 12-26-2014 08:24 PM

Hi Loren

How come you didnʻt post this in the projects section? Great idea.

-- Tyvekboy -- Marietta, GA ………….. one can never be too organized

View Fred Hargis's profile

Fred Hargis

2606 posts in 1404 days


#11 posted 12-26-2014 09:36 PM

I do like that. Well thought out!

-- Our village hasn't lost it's idiot, he was elected to congress.

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