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Overhead blast gates

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Forum topic by Loren posted 692 days ago 2861 views 15 times favorited 9 replies Add to Favorites Watch
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Loren

7400 posts in 2275 days


692 days ago

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


9 replies so far

View DIYaholic's profile

DIYaholic

13271 posts in 1302 days


#1 posted 692 days ago

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 procratination a bad thing?

View SASmith               's profile

SASmith

1566 posts in 1614 days


#2 posted 692 days ago

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

-- Scott Smith, Southern Illinois

View Lee Barker's profile

Lee Barker

2163 posts in 1478 days


#3 posted 691 days ago

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 Jerry's profile

Jerry

2180 posts in 2174 days


#4 posted 691 days ago

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.

-- Jerry Nettrour, San Antonio, www.topqualitycabinets.net

View Loren's profile

Loren

7400 posts in 2275 days


#5 posted 691 days ago

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 475 days


#6 posted 39 days ago

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

View NormG's profile

NormG

4094 posts in 1631 days


#7 posted 39 days ago

Great solution

-- Norman

View Loren's profile

Loren

7400 posts in 2275 days


#8 posted 39 days ago

Cannibalized plastic blast gates.

-- http://lawoodworking.com

View TheWoodenOyster's profile

TheWoodenOyster

717 posts in 562 days


#9 posted 39 days ago

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

-- The Wood Is Your Oyster

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