Fighting Dust #10: Blast Gate - V. Beta

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Blog entry by ChunkyC posted 01-09-2012 01:01 AM 1821 reads 2 times favorited 2 comments Add to Favorites Watch
« Part 9: I won this battle, but the war is raging Part 10 of Fighting Dust series Part 11: DIY Blast Gates pt 1 »

Well that was easy and it’s Bloodhound approved!

I wanted to try to see how hard it was to make my own blast gates. Pretty simple actually. I did spend some time to make certain that everything was a good fit but it still went pretty fast. This is a “through” gate meaning that the slide can be pulled from either side.

I cut two holes in a piece of 1/2” ply. One just big enough for a 4” S&D coupling and the other for 3” DWV coupling. The slide is made from 3/16 tempered hardboard that I covered both sides with a liberal coating of paraffin. The “spacers” are 1/4” hardboard that I used my hand plane to reduce their thickness a little. Poly Glue to affix the coupling to the ply and PVA for everything else. I did shoot a couple pin nails just because I was too lazy to mess with clamps.

The 3” coupling turned out to be just a little big to slide the hose over. I remember hose sliding over 3”. Maybe I need to sneak out to the hardware store and pick up a short of 3” DWV pipe and see if that works a little better.

I did cut the 4” Coupling in two so that I could make 2 blast gates from one coupling. I had intended to the same with the 3”, but since the hose is a tight fit, I just left it as is.

The good news, no leaks! so I have something that I can work with here.

A stop would nice but I’m willing to sacrifice a stop for a leak free gate.
A handle. Since this was just a test, I didn’t bother with a handle. Easy enough to toss one on it but it’s not hard to get a hold of the way that it is now.


-- Chunk's Workshop pictures:

2 comments so far

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4816 posts in 3225 days

#1 posted 01-09-2012 01:51 AM

I think you nailed it.

IMHO … at this point … little details like stops and pull-handles might just be overrated :-)

Nice job !

-- -- Neil

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19623 posts in 2726 days

#2 posted 01-09-2012 02:19 AM

Those blast gates look so good, I might just need to steal this idea. Good to hear it is easy. I like easy, or I am easy…something like that!

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

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