SAW DUST "FUNNEL"--Miter Saw Dust Collection System
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My miter saw dust port does very little to cut down on the volume of saw dust entering my shop space. So, I put together a new dust hood and DUST FUNNEL. Check out how I did it!
DUST FUNNEL HOW-TO:
1) I retrofitted my miter saw table by cutting a rectangular hole in it with a jigsaw.
2) Using scrap melamine shelves, I assembled a miter saw dust hood by attaching them with plywood scraps and wood glue. I also included triangular gussets in the corners for support.
3) I then assembled a melamine box in the same shape/size as my table cut-out. I cut and attached melamine ramps to the interior walls to create a funnel leading toward a dust port at the bottom.
4) I attached this dust funnel box to the underside of the table and framing members using 1-5/8" screws.
With this dust funnel hooked up to a shop vac, and the shop vac on, I've noticed a serious drop in airborne fine dust particles when I make cuts using my miter saw. When the cutting is done, I can also just sweep large grain dust into the dust funnel for clean-up!
Thanks for watching!
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Your video style is FANTASTIC, no cheesy music and no painfully rambling narration. I subscribed.
Good solution to a common problem, loved the funnel design. The key message in this video for me is, “ don’t settle” interested to see where you go with it Ethan.
I built a box very similar to yours but with a 4" dust port that goes to a 3hp dust collector in the basement directly below the miter saw. My results were similar to yours until I added a couple of doors just behind the fence with an opening just wide enough for the saw to go through. Now it collects 100% of the dust..like you said, it is very difficult to design a door system that accommodates all of the miter and bevel angles that the saw can use. I am still working on a solution for doors that accommodate extreme bevel and miter angles. But the doors limiting the airflow going into the box to the smallest possible area around the blade is the key to capturing the dust.
The idea of a dust collector is to keep the velocity of the air as high as possible until the dust is trapped. Once that happens the volume of the air flow takes over and moves it to the capture devise. The small intake port that opens up to that huge rectangular hole is killing the efficiency ...The Delta V is way too high.....here is my suggestion...Inside the hood box install a piece of 51% open perforated aluminum sheet at a 45 degree angle. The aluminum piece should be sloped 45 degrees away from you so the bottom is closer and the top is at the back top corner. Now when you turn the vacuum on....the velocity of the air will be almost laminar across the entire perforated aluminum face. This should be much more efficient for you...
The first sentence of this comment is what every person trying to make dust collection more efficient should read! Almost every dust collection system, solution is so inefficient it's painful to watch.
Nice to see someone on YT still using the original vertical slide DeWalt slider. I'm a retired finish carpenter and that's what I used my whole career. Still have it and it works great.
I did something similar with my Dewalt saw. I put in a Powertec Dust Hood in my table, under my saw. The dust that would have been laying around on the table now falls down through the dust hood into a bucket I have underneath. I can also just throw small pieces back there and they drop into the bucket too. It has been very convenient. I don’t have a vacuum hose hooked up to it, I just wanted a way to funnel the sawdust away. It is working well.
I used a sheet of metal to build my box. It was cheap and easily removed if needed. I used my ductwork tools and a series of “S” and drives to put it together. I workds great and It takes up a lot less room. Great video!
Ha!! The ‘ole DW708. Good saw. Have had mine for several decades now. Yes, the vac port is terrible. I’ve used hanging plastic sheets and wooden shrouds for it over the years, but being that it’s so large, I’ve never been able to control the dust from it. Your plan/idea is one of the best I’ve seen thus far. Kudos.
One of the main point of Dust control is " not breathing the resulting fine particles." I noticed that you had ear plugs, but not once did you wear a N95 mask to protect your lungs! I point this out as someone who has developed asthma and sinus issues later on in life (not a smoker.) Respectfully, you can use a shopvac to clean up your shop, but you can't clean out your lungs! Stay safe, breath well!
Add a good coat of wax to the inside of all your chutes! Amazing how much more flow of sawdust will make it down.
Man this makes so much sense. The little things we just don’t think about. Thanks for the info. 👍🏽
Enjoyed the video Ethan. Thanks for showing us what your using as your building. Look a like your on the right track. Thanks for taking the time to produce the video. Y'all take care and God bless.
I built a similar set up but it's a lot deeper as in closer to the floor, so the sloping sides that go to the dust port are probably 45 degrees. It works well, no dust gets thrown back at you.
I like what you did. I am going to make the same funnel tomorrow for my chop saw station. Hard to get all the dust but it will be an improvement. Great job!
Thank for sharing I did something similar ran a hose from dust port to my funnel helped some my bag was aways full
Nice video. I love the no nonsense straight to showing us how to do it. What about also mounting a small piece of flexible vacuum hose to saw outlet? It might direct the saw dust more towards the funnel.
My only suggestion is to add another angled piece of melamine to that rear ledge above the dust funnel. That little ledge is collecting a lot of dust that would slide down an angled piece into the funnel. Your design is inspiring and when I build a miter station in the near future, I’ll incorporate your design and experiment with tweaks on the front. All the best to you!
That's very impressive! Wonderful job, man! Thank you for sharing!!
Thanks Hector!
Looks good! Thanks for sharing this.
I did exactly what equinox suggested and it works very well.
I have the same sawand I am trying to figure out the dust collection,I like your design an added touch would be a fabric curtain that would enclose the front so I’m working on that
I know someone mentioned using a 4" dust collector hose. I have a 1HP Jet dust collector with a 4" port. It works well with my bandsaw because it also has a 4" port. When I use it with my DeWalt compound miter saw, its effectiveness is limited by the reduction to the 2" port. Will have to build a setup like yours but use the Jets full 4" port. Nice build!
Thanks Richard!
Great idea. I will be using it for my workshop.
What are the wood strips on the outside off the rectangle box for?
I was just noticing last night that my Rigid saw was having the same issue. I noticed that when my blade was pressed down all the way, most of the particles were going up the boot into the vac. However when when the blade was up and starting to cut into the top of the material, most of the dust and chips were kicking out below it. I was thinking of a funnel myself, but pointing away from the rear of my saw, so that I was using the momentum that the dust had and capturing everything from the rear, instead of waiting for it to fall down. Obviously this would be difficult in your situation with your saw against the wall, but I'm hoping it might work on a work bench with space behind it.
Saw another video with sliding doors, looks like the best option for containing dust
Very nice!
I need to copy your excellent idea.
BTW, it kinda looks like a high frequency driver for a rock band speaker system.
I need something similar when I get my workshop up and running great ideas, I've subbed to your channel
Cheers
Tim from Wood4nothing
I know mine kicks out a shit load. I've got a all shop vac hooked up to one. A Serge protector with the saw and vac plugged into it. Power onto the saw and the vac comes on as I get ready to cut, not bad.
Nice video. I’m a Festool fan for this very reason. I know they’re dang expensive, but they got the dust collection figured out!
I worked at huntington steel long ago, and the metal chop saw also had a dust prevention system kinda of like that. I incorporated it into my wood shop. Basically the saw sat on a grid of steel with an enclosed box below that, which had a heavy duty fan, like a furnace fan, that pulled down air and debris. Most would fall to the bottom. There was a 4" suction port at the bottom that would come on ever so often.
My build used a heavy duty box fan to pull air in the back, including saw dust.
And a box fan to continue pulling the air through a dust filter. A suction at the bottom.
This catches all of the saw dust thrown in the back and thrown in front of the saw, and around the saw.
Only problem is, your saw station is entirely a suction and filter station.
Great job, every bit helps.
Thanks James!
The sound of silence! Love it.
This is close to my design but I extended the funnel under the round saw base and have a round hole under the saw to collect dust from under the saw. My DeWalt saw allows all of the sawdust during the last part of the cut to go under the base.
Just curious, what are the bevels for on the supports on top of the hood? cleaner look and less exposed sharp corners?
also, could you cut a couple more stirps of melamine with a bevel around the flat part so they angle down towards the funnel and you wont have to scoop the dust piles?
I have the same size saw, same problem trying to fix now, thanks 😊
I working on a dust shoot for my table saw. I guess I should smooth out the sides for better flow.
thanks for the video. i like the funnel idea.
Ingenious. Hoods can be purchased, but this solution probably works better.
Nice solution. Hope it helps keep dust down
Thanks John. It’s working pretty well so far 👍
Very nice. I'm thinking of adapting your idea to my new Radial Arm Saw workstation in the next month or two.
Thanks, Graeme! Good luck with the build when the time comes :)
nice idea bro!! Mint work
Looks great!
Nice work!
Used to do corian, like the hood idea
Just attached x6 20mm powerful suction pipes to the main support rod (that the actual saws blade adjusters are mounted to)..
👍🏻
Is that it? What a walk in the park 😏
Throw a pc of 1/2 square chicken wire over the opening to keep out the chunks,i also run one of those outlets that kicks on the vacuum when you trigger the saw...looks great....
Love the channel.. :)
The hood appears to be a great idea. Everyone has the same problem, too much sawdust while using a mitre saw. I think adding a protective curtain to the front would reduce the dust even further. Just add a collection hose underneath and connect it to your dust removal system. My Dewalt spits dust all over the place, and leaves a mess all over my basement. My next project, an easy to build system most of us can finish in a few hours and save a lot aggravation, money and mess.
Great idea mate
Thank you!
I done the same thing... Sort of. I used the big ass box the saw came in. Just turned it on it side and cut off the flaps. It helps keep the fine dust out of the air.
I don’t wanna knock the saw, but being an old model that is a detail I know has been improved upon in the new models. I love dewalt saws and won’t use anything but. As long as the saw works as it should there isn’t a need to upgrade. Honestly we made a very similar box behind our shop saws where I work.
Very true, Peter. This thing is a beast--just a really powerful motor, never had it bog down on anything. But the dust collection was an afterthought. I'll add a couple more things to catch fine particles before it's all said and done
Peter Wall Sorry but even with a brand new miter saw the dust collection is a joke!
Kind of a nitpick but those skinny plywood strips were ripped across the face grain, causing splintering along the edges. This project was a good way to put lots of cutoffs and lumber shorts to good use, so you were constrained by the sizes on hand
Nice job Dude.
Thanks Marc!
TOOOOO NICE!!!!!! How about clear plastic curtains for front side
Personally I'd go about it different. The dust collector built into the saw works. It just needs assistance. Instead add an air line to the back of the blade that knocks off the man glitter before it kicks back to the front. The blast directly into the vacuum will keep the shop lots cleaner. Interested to see you make this to fit your table saw also.
I have a very basic version of what you have there and I would go with the front faces, at the 6 min mark.
I have them but I did it on a much narrower but taller box even with a small amount of vacuum power it helps to keep the dust down without getting in the way of all the angle cuts, after a bit I only kept the left side covered but that was based on where most of the dust way being thrown about.
Different saws my push the dust around in other ways.
You need a bigger dust collector. A minimum of 4" for most dust generators, 6" for big things like table saws, sanders etc. There are lots of options out there. I purchased a Jet DC1200 for $100 because it was disassembled. Dust collection is all about air flow and vacuum pressure. Clear Vue makes some excellent dust collection systems along with Penn state. I would also suggest you look into Phil Thein's dust separator. www.jpthien.com. Besides the large particles you see its the ultra small ones that will cause the real problems.
Necessity is the mother of all inventions!!! What are the OSB runners for on the top and sides... decorations?
The top and sides are made of two pieces of melamine each. The runners just hold the two together.
Found your video because I have the exact same saw and am looking for a way to help contain the dust.
Put some type of plastic curtain strips in the front of the box then extend your dust port hose into the box more. Looks great though.
How deep is your bench for that dewalt mitre saw???
The one thumbs down was the DeWalt engineer who designed the dust collection system for that saw. He got punked.
😂
Has there ever been a mitre saw of this type, regardless of the manufacturer, that had nothing more than garbage dust extraction? With the health risks known as they are today this is unacceptable.
James Scott Yes! Look at the Festool Kapex 120. Exceptional dust extraction. And I don't own any miter saws...
The Honest Carpenter has
Yeah that's about the only negative for this saw.
This was s brilliant idea. I think the angle could have been a bit more snd that would eliminate the of dust still accumulating in the corners. Guess you already fixed that since I am now seeing your video for the first time
That's a lot of work for something that really doesn't keep dust from flying around.
Nice!!!
I have a similar set up. Because I added mine as an after thought it has the same ledges yours has. I used a piece of laminate to slope the sides into the trough. I have a larger hole in the bottom that drops into a five gal bucket. I found the shop vac wasn’t needed.
Looks great! Nothing more fun than rebuilding a shop!
Look around there are some great outfeed table designs out there. My outfeed is simple. Big enough I can easily cut plywood length or sideways by myself. Added a router, then downdraft sanding area. Design for your need and post the build!
Good luck and enjoy
Very nice 👍
thank you
Awesome
Looks good I bet a small fan mounted on top pointing down would help even more
Thanks Steve. I was thinking something similar-redirect that dust flow a little more
@@TheHonestCarpenter PC fans are good because they run on only 12V DC and are designed to run non-stop for ever. They are a very good way of moving air about for very little cost. They can also be assembled in series for more oomph.
If you use another circular funnel directly above the vaccume you will be able to amplify the magnitude of your vaccume.
I’d suggest using an actual dust collector with a 4” port rather than a shop vac.
I’ve used a similar setup on a radial arm saw but the funnel horizontal behind the saw, and a cheap portable 4” dust collector.
I have the space for a RAS and enjoy the added capacity and capabilities if setup right they are extremely accurate.
just suggestions, why not made a box for saw?
Would really liked to have seen you screw the box together after you pinned it as the glue won’t hold malemine - but I see you’ve heard that now a few times... aside that, I like the idea. It’s given me something to think about with my woodshop. The mitre saw setup is the only machine that isn’t a built in yet. The Milwaukee saw on the Bosch stand was left mobile as it still gets pulled out to use on site. i like Milwaukee’s dust port and bag, but it’s oval shape doesn’t leave much love for connecting to the dc system... I’m also still not in love with it’s 46” depth.... damn saw is great, but my goodness it’s big...
shawnhuk I purchased this last year from Rockler and have been very happy with it. Give it a look.
Dust Right FlexiPort Power Tool Hose Kit, 12' Fixed-Length
Good luck.
Good idea but wondering if a sheet metal option would have been easier.
beauty of melamine is glue does not stick to it very well. Glad to see you used lots of staples!
I was think while watching the video funnel is a good idea but once the hole for the hose opens to the air above the area it is to big an suction is diminished, If 2 more pieces were installed at an angel meeting at top center of the box and angle down to each side about an inch from side walls that should direct the dust downward and increase the suction
Maybe add some angle pieces to the back and side, to get ridge of the flat areas if it will not interfere with your saw. Like your system. I am just build my station. 🤘
I’m building a saw base that is also connected to my DC. The wooden base will help suck blade dust debris from beneath the saw base.
Sounds like a good idea, Jonny. I've seen some perforated tables that just let dust fall through. Good luck with the project!
The top Im not crazy about. Why didnt you put the supports side facing in? At least it would have a cleaner appearance. I always of the motto if I have to look at it, i want it to be appealing to the eye. Plus shop furniture is an opportunity to practice your building skills. That is how I learned to make cabinets.
I suggest you try out a Miter saw "tent"
Still got the dust now a dust pan to brush it in and a lot of wasted time building it,quicker to just vacuumed up when done,lol😂😂😂😂😂😂😂
It's nice to see shop furniture made of unfinished pine and scrap instead of professionally varnished walnut and maple. Not that there's anything wrong with that - but it's reassuring that I'm not the only one with utilitarian taste in the garage.
Thanks Frank! You won’t catch me whipping together shop projects with that stuff 😂
Thanks for showing a quick build. One question - I see you using regular wood glue on the melamine surfaces. Do you find it working ok? I haven't had good success with the glue on those melamine surfaces.
This was my old table, ashok. But it never gave out on me! Not a lot of force on it overall.
yes I have a huge heavy 12 incher. Here's what I do. I take it outside, set it on the ground. Use 2 x 4's to bring the material up to height. Prevailing winds handle my dust
Trail Guy and then it rains....
@@marcussmith3848 I wish - we are desperate for rain in Nevada
Over here in the uk you have to time cutting outside well... especially now!! It’s cold and miserable!!
He is setting up a shop. Cutting at proper height and with proper support is so much nicer for your body, accuracy, and production.
Clearvue cyclone is what you need. That shop vac doesn’t move enough air in a setup like that.
I'd love one Marvin. Just on very light budget at the moment
The Honest Carpenter
Just make sure you still wear a good dust mask. The fine dust is what gets ya.
The Honest Carpenter there are some good videos out from folks that made their own cyclones from inexpensive materials I’m sure with your skills you’d knock one out in short time. Liked your video, always love “pardon the mess work in progress” videos
I built something similar using my vacuum and it’s okay but I’m going to continue to improve it. Too much dust
How strong is the bond between the wood and the melamine when you use wood glue to attach the pieces?
Not that strong, audio guy. But this thing is stationary, so plenty for this application. Feels sturdy when I pick it up
Ken, Festool does a horrible job at collecting dust from their kapel miter saw. I use one and it did not work, so i built a box around my saw and put a 18 inch fan behind the saw pointing outside . It works good for the fine dust, also I think the idea of a big funnel under back of saw with a 6 inch dust collecting pipe to dust machine would catch the larger particles. The fan has worked great for fine dust but leaves behind larger particles on the floor.
If you can have your saw near a window Barry, the fan method is really a great way to cut down on fine particles, which are the most harmful
Your "Quick Surgery with a multi-tool" sounded like a cat crying.
Anyway, every shop is different. I've seen other dust hoods that are very similar. There are really only 2 factors that you can use.
1) How much air volume are you pulling?
2) What is the furthest distance from the port does the sawdust land?
If you look at garden sprayers, gas grills, fountain walls and etc. They all have the same thing many holes to spread out the media.
I recommend that you get a 1/4 inch copper tube and connect it to an air compressor. This way you can blow the sawdust back towards your inlet. Doesn't need to be very strong. Just a push in the right direction. I have my old squirrel cage blower motor from my old A/C system. Put in a new one with the help of my Son Feb 2019.
Thought about using the air assist option for my Radial arm saw. Run the pipe under the table. Drill through holes at an angle 30°-60° towards the back. Low air flow and it gives a push in the right direction. My blower takes care of the rest.
Thanks for the advice Tim! I’m still working on a few things. Kind of doing this on no budget and such. I appreciate the insight on the compressor system though-sounds like it would work 👍
@@TheHonestCarpenter Little tweaking here and there. I have my miter saw in 100 pieces. Installed new bearings yesterday, just a little squeak. Decided to do a full overhaul. New grease, bearings, sanding flat surfaces, plastic polish for the shield, other polishing and a wire wheel for the screw heads with a spot of rust.
I like talking care of my equipment. After it's done I will make a new zero clearance insert.
GREAT JOB!! UR SMART!! WISH U WERE MY NEIGHBOR!! LUV ALL UR VIDEOS!!!
It would be cool if you installed tambor doors, one on each side. Then you could slide them easily to limit the opening.
Good concept but ... you really used tightbond wood glue on a melamine surface?
CA glue would have been better.
Just learning. What is the problem? Is melamine too smooth?
William Branham The surface of melamine is too smooth for wood glue adhere properly. If you want to glue melamine, you will have to score and scrape down to the substrate.
@@uberjeep Good to learn something new. Thanks.
I’m not even sure if CA glue would of been a good choice either. I would of probably used silicone caulk
The Dewalt is really hard--almost impossible--to collect dust from. Your idea is good, better than nothing.
FYI though, wood glue doesnt stick to melamine. Particle board edges yes, melamine no.
You need Roo Glue for that.
Not too bad for sure. There isn't a whole lot we can do with those big ones, huh? Might I suggest getting rid of the green and grey tools and stick with that yellow and black collection you got going on. Lol!😉 Nice work by the way. New subscriber.
If you held the wings on with magnets you could have several different sets and switch them out depending what cut you were going to make ( 90, 45 left, 45 right, compound, etc.)
I tried some variation of that with rare earth mags and 1/8 mdf Thomas. It wasn't too bad. It really made me wish I had some sort of flexible bag that came up to the back fence on the miter saw though. That's my next test, if I can ever get around to it 🤔
I too have been thinking of a similar project. In place of ridged front covers, I’ve been thinking of heavy vinyl curtains with vertical slats. A heavy shower curtain should work. Just make sure the flaps can’t reach the blade.
That’s exactly what I was thinking richard. Something flexible they can move with the saw. Rigid flaps are just two-dimensional really. Fabric of some sort would be more efficient
Your on the right track for sure but you need a 4” hose connection and a shit load of CFM. A big dust extraction system, not a vac. my experience anyway.
I may have missed it but, what is the function of the wood strips on the sides and top?
They’re just straps to edge join the melamine shelves together quickly, Keith
Holy crap wow! My question is the reason for the expression ‘Polish moment’!! There’s proof right there, yes Virginia, there ARE stupid questions! Thanks for waking me up. New subscriber...