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looking for ideas on dust hood for chop saw

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Forum topic by JesseTutt posted 10-20-2012 07:16 PM 3146 views 0 times favorited 19 replies Add to Favorites Watch
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JesseTutt

811 posts in 831 days


10-20-2012 07:16 PM

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

My shop improvement project for this fall is Dust Collection. The only stationary (debatable) power tool without dust collection is the sliding compound miter saw (DeWalt 718).

I would like ideas on a box to surround the back of the saw. The box’s back can be the wall behind the saw. I plan to use a 4” PVC port.

-- Jesse, Saint Louis, Missouri


19 replies so far

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Grandpa

3193 posts in 1396 days


#1 posted 10-20-2012 07:43 PM

Jesse, those things make tons of dust and are nearly impossible to contain. I have a Bosch Sliding compound miter saw and it is a mess. I have looked at several and though about how to build something. I have seen sever homemade divices and some claim to work pretty well. I have a dust collector so here is my latest thought. I think I am going to take a plastic barrel (10 gallon) and cut about 1/3 of the side out. I would leave the entire end I think. I think I will need 2-4 inch (maybe 2 1/2 will work) suction ports on the lower part of the barrel. I think I will need to connect to the regular dust port on the back of the saw. I have just had lots of things wunning through my mind and haven’t done anything yet but that is one of my thoughts. I would mount the barrel on the back of the saw table and go from there. I have this barrel on hand ans well as some larger barrels so that would keep my cost as low as possible. have you had any thoughts.

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teejk

1215 posts in 1405 days


#2 posted 10-20-2012 09:39 PM

I think “containment” is the key…and you already hit on the “box” idea. my experience is that the saw will blow the dust down and if contained, it stays there.

I surrounded mine with a 3 sided box made of 1/4” plywood (sized to stay clear of the table operations). There’s enough surface on either side to punch in a PVC fitting to attach a shop vac to.

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JesseTutt

811 posts in 831 days


#3 posted 10-20-2012 11:06 PM

teejk: are you talking about a box with 90 degree sides or an angled one? I was thinking of a box with the back smaller, sort of like a funnel.

-- Jesse, Saint Louis, Missouri

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BenI

331 posts in 899 days


#4 posted 10-20-2012 11:15 PM

This might work, obviously you can adapt for your liking but it does have a 4” port for a DC. If you look around on this site, you’ll probably find something you’ll like.

-- Ben from IL

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Tedster

2272 posts in 931 days


#5 posted 10-20-2012 11:37 PM

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Grandpa

3193 posts in 1396 days


#6 posted 10-21-2012 02:43 AM

I just have a hard time getting excited about a metal frame with a flimsy cloth cover that costs $150. That is what most of those are. There was one here where someone had used a plastic tub. They are tapered almost like the funnel mentioned above. This guy had hooked a vacuum system to it. I was thinking about the plastic barrel for my turning lathe. I could add a metal shelf under the bed of the lathe and let the chips fall or slide down into the barre. The barrel I am talking about would be on its side with part of the side cut out. Then i thought if this works I could make a second and use it for my chop saw. I have a sheet metal brake and couke use it to make a bit funner too. IT would cost more since I got the barrels for free.

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RussellAP

2963 posts in 1007 days


#7 posted 10-21-2012 03:23 AM

I just ordered the one Ted linked you to. It is a lot for some wire and cloth, but I don’t have time to make one and my shop floor is looking like a stable. I have invested heavily in DC this week with a dedicated SV for the TS and a DC system for the joiner, planer, and BS. Using Abranet abrasives as well, much less dust on ROS.

-- A positive attitude will take you much further than positive thinking ever will.

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BenI

331 posts in 899 days


#8 posted 10-21-2012 04:14 AM

My bad, just realized I didn’t actually post the link for what I was going to point out that could work. Here’s the link:

http://lumberjocks.com/projects/67792

-- Ben from IL

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teejk

1215 posts in 1405 days


#9 posted 10-21-2012 02:04 PM

jesse I did a rectangular box from scraps to minimize the “containment area” and also allow space on either side for “stuff”. sides extend just up to the rear of the fence. the back is a little wider than the footprint of the saw. I attached the sides to 3/4” cleats that I attached to the table on the outside of the box (i.e. the “floor” of the box is void of anything). If I had to do it over, I would make it a little wider to allow easier acess for the shop vac. The plywood is about 14” high which is high enough to still capture the exhaust chute on the saw when it’s fully down.
I haven’t punched a dust collect fitting in yet but when I get around to it it will be easy enough. Note the “additions” (a scrap piece of j-channel mounted on one of the cleats works perfect to hold tape measures and also pencils, and then a conduit strap holds 2 combination squares)

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Grandpa

3193 posts in 1396 days


#10 posted 10-22-2012 02:02 AM

teejk, would it be possible to make a “funnel” in the bottom of the collection box. Make it metal and it should shed dust into the collector hose. Just a thought.

When I said it was a lot of money for the cloth hoods it reminded me of a man I worked with. I would say something like “That is outrageous. $7 for a spring!” He would say okay we will buy them from your. What can you build them for?? LOL I probably couyldn’t touch that price even if I didn’t count my time.

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JL7

7397 posts in 1685 days


#11 posted 10-22-2012 02:21 AM

I no longer have a slider, but I came up with a pretty good solution for my 12” saw – I use the dust collector with adapters on the stock dust port and the rest off the dust is deflected down into a drawer under the saw. Built a shroud around the sides and back with rubber strips to deflect the dust.

The nice thing is it works regardless of the angle…..

Blog is here: http://lumberjocks.com/JL7/blog/28623
and some video here: http://lumberjocks.com/JL7/blog/28648

Good luck on your build!

-- Jeff - I have not failed. I've just found 10,002 ways that won't work.

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teejk

1215 posts in 1405 days


#12 posted 10-22-2012 04:50 PM

grandpa…I thought about your idea but rejected it…my saw sits on a mobile bench (shared with the mortiser) that also is my storage area for misc tools and cabinet hardware. As far as I can figure, if I punch a dust collector in the side of the box and hook up a shop vac, I’ll capture 99% of the dust…the enclosure is not that big and my Ridgid shop vac eats anything in sight. I haven’t done that yet because I find that simply enclosing the “exhaust” output is a great improvement.

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mmckee

11 posts in 795 days


#13 posted 10-22-2012 06:10 PM

http://www.talkfestool.com/vb/festool-tips-techniques/1612-ct-mini-bosch-miter-saw-2.html

I know this is not a hood but I played around with it last night using a piece of inner tube and it has potential. I did not have time to really mess with it. I also was looking for a “hood” idea but I have the 12” Bosch sliding compound saw with the gravity stand so its not as easy as just building a box and mounting it as if it were on a actual bench. I am not a fan of the other fabric hoods either.

There is a video of this in action somewhere out there as well I think

View Elizabeth's profile

Elizabeth

811 posts in 1864 days


#14 posted 10-22-2012 08:07 PM

I’m in the middle of a similar project for my DeWalt DW717. I am going with the usual box-behind-the-saw method and also am connecting a dust hose to the output port on the saw – after weeks of searching I finally found something that will fit the 1.5” port on the 717. (Lowe’s item number 17026, “Shop-Vac 12-ft x 1.5-in Premium Crush Resistant Hose“)

Can anyone tell me what effect the choice of 4” hose or 2.5” hose coming off of the collection box will have? I don’t know which would be better to use. Due to the location of my saw the hose will have to come off the right hand side of the box rather than centered in the back of the box. I’m expecting dust buildup on the left as a result and will just manually clean it out every so often.

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Vrtigo1

432 posts in 1712 days


#15 posted 10-22-2012 08:27 PM

http://www.thewoodnerd.com/workshop/dustCollection.html

Scroll down to miter saw. I saw this a year or two ago and have wanted to build something similar but never got around to it. It seems like this works pretty well.

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