Dust Collection - Miter Box

[Kenneth D. Stein]

I am building a basement shop. I have a Bosch 12" sliding miter saw that is 30" front-to-back. Can anyone please help me with the design of a dust control hood for this saw? TIA

[Chris McKimson]

Here is a store bought one, seems to work o.k., through I wish it had a bigger port than 4".

http://mainframe.smugmug.com/photos/58644325-S-1.jpg

Chris

[Kenneth D. Stein]

Can you please give me the particulars - make, model, where bought?

[frank shic]

looks like the overpriced plastic hood by rousseau

http://www.amazon.com/gp/product/B0006FRAVG/qid=1147982330/sr=1-2/ref=pd_bbs_2/002-2693407-3150421?%5Fencoding=UTF8&s=hi&v=glance&n=228013

[Bruce Benjamin]

Assuming your saw doesn't already have a dust port you should
look at the Big Gulp Dust Hood. A quick Google search shows lots
of places selling it and this might be the cheapest...
http://www.woodzone.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=828956&Category_Code=DC

I don't have this hood and I've never done business with this place
but that's what I found. My CMS is an older Craftsman 12"
and it has a built in dust port right above the hinge. I adapted a
2 1/2" hose to fit and hook it to my shop vac and I get probably
90% of the dust or more. If I hooked it up to my full size dust
collector it might do better but I don't want to run the hose.

Bruce

[Chris McKimson]

looks like the overpriced plastic hood by rousseau


Yep. :o :o

Figured I had close to 3 grand in the other stuff (DC, piping), what the heck. :D :D

Chris

[frank shic]

chris, once i upgrade to a cyclone, i'll probably become obsessively compulsive about ridding the workshop of every last speck and flake of wood dust. in short, i'll be joining you soon!

:eek:

[Ken Garlock]

Hi Kenneth. I have been playing with a dust hood for my Mikita 10" SCMS. One conclusion I have reached is that you need to build the hood so that its sides come up even with the saw fence. I built one out of 1/4" Masonite and didn't bring up to the fence, and for anything other than a 90 deg cut I still get dust all over the place.

Of course, you must put a top on the hood. My Mikita has a dust collector bag on the top behind the blade, a token offering. I took it off and cut a QAD (quick and dirty) sheet metal deflector to direct the dust toward the back of the hood.

I have search the web for bender board or wiggle board. It exists, but I haven't looked for it around town. Another option I am looking at is using a couple sheets of laminate glued back to back to form a half oval and then top that off with a plywood top.

Dust collector interface, I don't really like the sheet metal 'register boot' like assembly I had made locally. I have been thinking about using a piece of PVC with a slit cut along the length and screwed horizontally to the back of the saw table.

I am also looking at removing the 4" PVC and continuing my 6" PVC up to the collector.

[Pete Grass]

Kenneth: Someone gave me a magazine that had this idea in it - I found the link for you:

http://www.bhg.com/bhg/store/product.jhtml?prodid=prodwp00143&psrc=storesitesearch

I built a rough mock-up of this concept from cardboard and have been experimenting with size, shape etc. My configuration has the DC inlet directly in the back, not on the bottom as shown here. My "box" is also much bigger - wider and taller, and with a 5" hose, you won't have much escape. The sliding feature is a big help when cutting those alternating 45's.

Pete

[Stu Ablett in Tokyo Japan]

I built a box on the back of my SCMS it gets most of the dust, even at an angle

http://www.ablett.jp/workshop/images/dc/scms_dc1.jpg

It is enclosed, and has the DC hook-up in the back top, which I'll redo (someday) to put the DC hose in the bottom (gravity you know).

http://www.ablett.jp/workshop/images/dc/scms_dc_inside_left.jpg

There is not much dust in there in the pic, but over time it does build up, then I just turn on the DC and stir it up by hand, and it all goes away.

http://www.ablett.jp/workshop/images/dc/scms_dc_out_after.jpg

This is the amount of dust I got after ripping up a ton, and I mean that, a whole huge pile of plywood scraps, (they have to be around 6" square or less for the garbage guys to take them bagged up). Most of the dust there is from when I was cutting larger boards, near a foot wide.

I've also learned, since this pic was taken, to open the wings more, it allows more airflow, and gets more dust.

For this to work, you have to have a DC that has a lot of airflow, my cyclone does.

Cheers!

[glenn bradley]

It may be that I don't have a slider or maybe I just don't do that much miter saw work (yeah, right). I found that a shop-vac (a big one) hooked to an adapter at the back of my dewalt does a very good job. Remembering that for focused work a shop vac has more (focused) suck that a DC which moves large volumes of air. If you're going with your DC a large hood is the way to go. I have a big gulp but only a 1 HP DC so the vac works better for me.

[Bart Leetch]

Here is my version of DC for a CMS.:eek: :D

http://www.sawmillcreek.org/showthread.php?t=29171

[Stu Ablett in Tokyo Japan]

Glen, you saw was built for a shop vac, my old Hitachi does not even have an attachment point for one :D

Cheers!

[Aaron Montgomery]

Head over to Woodnet and do a subject line search in the tools forum for "Big Gulp Guzzles Dust-Saw Modification". (search using the quotes) I found this to be a very innovative solution, although I have not addressed miter saw DC myself yet. I'd have posted a convenient direct link, but of course that's against the TOS.