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Dust collection... for the mitre saw..

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Forum topic by degoose posted 1198 days ago 7054 views 17 times favorited 17 replies Add to Favorites Watch
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degoose

6957 posts in 1937 days


1198 days ago

Topic tags/keywords: dust collection saw hood jig miter saw

From the last post you will be aware that I have built a Hood for my 12 inch Hitachi…

Basically this is a box made from 1/2 inch MDF….that sits behind the saw and catches any saw dust that is not directed to the 2 1/2 inch hose attached to the saw itself… where the bag is usually.

This hose is run through the back of the box and via a reducer connected to the 4 inch ducting system…

At the back of the box is a small plenum chamber with baffles…and a connector…

The angled baffles are cut to suit…

and then glued together… this box will fit behind the main hood.. there is a small gap left when the main hood is sat on the bench… dust is sucked through this slit…

This system was designed to allow the saw to pivot both ways to 45 degrees….

and a behind the scenes shot…

This system works extremely well … catching and collecting nearly 95% of the dust….I am happy with this… just a quick blow with some compressed air moves the dust that drops behind the saw towards the slit…and the last bit is sucked up as well.

I got the original idea here... thanks Blankman… I did however make a few changes… don’t we all…

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...


17 replies so far

View Joe Lyddon's profile

Joe Lyddon

7595 posts in 2635 days


#1 posted 1198 days ago

Nice…

-- Have Fun! Joe Lyddon - Alta Loma, CA USA - Home: http://www.WoodworkStuff.net ... My Small Gallery: http://www.ncwoodworker.net/pp/showgallery.php?ppuser=1389&cat=500"

View Dusty56's profile

Dusty56

11638 posts in 2270 days


#2 posted 1198 days ago

Very nice ideas , Larry : )

-- I'm absolutely positive that I couldn't be more uncertain!

View Rick  Dennington's profile

Rick Dennington

3263 posts in 1777 days


#3 posted 1198 days ago

Stellar job, Larry on the dust hood. I built one for my m.s. several years ago, but it doesn’t work very good..

I think I may to need to re-think it and start over again, now that I’ve seen yours….thanks for posting…

-- " I started with nothing, and I've still got most of it left".......

View NBeener's profile

NBeener

4806 posts in 1756 days


#4 posted 1198 days ago

Now THAT … is how it’s done !

Very nice !

Kept thinking, last night, about using your DC plumbing system as a gym for guinea pigs … if you unplugged the DC.

But wouldn’t that be cool ?? You and a few mates … drinking a few beers … and just watching Fluffy recon the whole system ?

-- -- Neil

View SASmith               's profile

SASmith

1527 posts in 1570 days


#5 posted 1198 days ago

Great idea. I need this setup on my RAS. Thanks for sharing this setup.
Now thanks to NBeener I need a guinea pig. They unplug clogs don’t they?

Scott

-- Scott Smith, Southern Illinois

View Jim Bertelson's profile

Jim Bertelson

3622 posts in 1747 days


#6 posted 1197 days ago

Good looking system…......little bleary eyed after working all day…......have to come back and look serious tomorrow.

-- Jim, Anchorage Alaska

View Kent Shepherd's profile

Kent Shepherd

2694 posts in 1869 days


#7 posted 1197 days ago

Simple, but effective! (Unfortunately, I can’t do anything simple—huh?)

-- She thought I hung the moon--now she just thinks I did it wrong

View Jim Bertelson's profile

Jim Bertelson

3622 posts in 1747 days


#8 posted 1196 days ago

I have to revamp my radial arm saw DC soon, a fairly easy thing to do. I will be buying a miter saw for our vacation house, however, and I may plagarize you to collect the dust.

Thanks Larry.

-- Jim, Anchorage Alaska

View richgreer's profile

richgreer

4522 posts in 1657 days


#9 posted 1196 days ago

Let me share my design. The major difference is that mine has a cavity below the the miter saw level and my DC is connected at the bottom. That creates a good downdraft that captures a lot of the dust.

If I don’t have the DC on, I can literally see the dust escaping into the shop. With the DC running, I see very little dust escaping.

On the inside of the lower portion of the collection box the sides are beveled in to the center. I think that helps.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

View degoose's profile

degoose

6957 posts in 1937 days


#10 posted 1196 days ago

Rich,Your ideas certainly make a lot of sense.. thanks for sharing..
Jim, go for it…

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...

View devann's profile

devann

1735 posts in 1275 days


#11 posted 1196 days ago

Here ya go Larry, my take on it. Made from FRP and angle metal used for drop ceilings

-- Darrell, making more sawdust than I know what to do with

View stefang's profile

stefang

12399 posts in 1917 days


#12 posted 1195 days ago

Looks like a good solution Larry. Personally I find that the direct hook up to my own saw hardly catches anything at all, but the hood works well. Your set up with the hose mounted in the back looks very effective.

-- Mike, an American living in Norway.

View Dustmite97's profile

Dustmite97

430 posts in 1803 days


#13 posted 1192 days ago

This is something I have always had a big problem with. I use a plastic dust hood now and it does work really good but I think that your set up is the way to go.

View dbhost's profile

dbhost

5377 posts in 1814 days


#14 posted 1185 days ago

That’s a project I need to tackle soon! Do you have any problems sliding the saw?

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View rance's profile

rance

4125 posts in 1743 days


#15 posted 1185 days ago

How about a simple umbrella at the back?

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

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