To IMPROVE on this desigh, I'd suggest using only 6 filters (as they come in packs of 6) AND also using the 20x30 filters which are a standard size and cheaper. Each 20x30 is 600 square inches so 6 of them is 3600Sqinch vs the 16-20 (320sq inch each and 2560sqinch total). So you get 140% of the filtration area for LESS money). Make the box as described but put in a blank sheet of 1/8" hardboard on one side. It also makes the resultnig frame stiffer. GREAT video and a solid idea - thanks!
Fine idea! I have a new concept for 20x30s for just that reason. As for this configuration, the idea was to make the smallest footprint possible. The video for the 20x30 design should be filmed this week and launched this weekend.
@@W4TRI Thanks! I came up with some kits for this concept in this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-mBKRMHSJ64E.html I will be launching a kit that works with the Caterpillar/MaxxAir fan in the next few weeks. I also plan to offer the kits as a pack of parts/plans that does not include the wood so you can make it yourself. Would either of those ideas suit your build?
@The3DHandyman I commented already, but since you're here... any thoughts on upside-down configuration, with pull fan blowing down? I know it would stir up floor dust/dirt, but maybe that's good? Filter it and have it gone? As to six filters, triangular prism?
Like the idea. Especially when you see the CFM circulation, 2500 vs. the much more expensive ceiling mount filter systems with less air flow. One suggestion. How about mounting the fan inside the box? Build the mounting frame to mount the fan inside of the box. Add a filter over the intake of the fan. This would eliminate the need to clean the fan because it would be inside the filter box. This would work especially well if you were using the eight filter box. Plenty of air flow and only filtered air reaching the fan.
Great idea. Thank's for sharing! I was going to sell my old 24" shop fan. Now I think I'll use it for this! I'll join the chorus of people saying push stick, PLEASE> A good friend of mine " a machinist" lost his right had to a table saw accident. Oh, they put it back on, at his request. But, his hand is useless, just a curled up claw. All the bones were shattered. Think of all the things he/you could no longer do. 20 years ago I caught myself getting too comfortable with my table saw! Never get comfortable with power tools. I use a scrap piece of 2x4 or better 2x6 with a glued on 1/2" high heal at the back. I have lots of these, so no excuses. I even leave a few at job sites until I'm 100% done! When I'm not lazy I even screw on a handle like from a handsaw on the back. It gives great leverage to help push the stock down the the table. I saw it once in a magazine article. On a side note, it looks like you are in a garage. If that's the case you could put in a few attic fans in the wall. I used to do this in my old workshop. Cleaned the air almost instantly and cooled the shop, and no filters to clean or replace:) Subbed.
I've made improvements in that particular area especially after cutting these videos together. It's a lot more noticeable the mistakes that are made when the camera gets all zoomed in on it. This video was uploaded a year ago but I actually made this filter 4 years ago. My new videos should better reflect my current safety level. I'd like to make some shot upgrades in the coming months. Some ventilation fans would be a good thing.
You know what makes great handles for flat pushblocks (which are sacrificial)? Old handsaw handles. Garage sale stuff. use (deeply countersunk) brass screws to attach them to the sacrificial block. Perfect angle, and kin old-timey stylish.
Those videos are just awesome!! Great quality on those 3d animated plan. Really make it easy to understand details. Thanks and hope there are more coming!
I kinda did something like this for the inside of my house, except made out of a 1 foot square cardboard tube that's 7 feet high. Originally made it to move the hot summer air from my ceiling downstairs,to mix with the cooler air. Then it passed by a A/C unit through my kitchen upon circulation.8000btu ac is cooling 1400 sqf doing this. But on a whim I put a filter on it, now it became an entire crude house filtration system for 1400 sqf. lol.
That's a great idea! At my place the temperature variation between the upstairs and downstairs is 15-20 degrees at times. Adding a filter to the unit is even better. Nice work
@@The3DHandyman thanks! Your project gave me an idea to make a more sturdy project out of wood or something. Maybe translucent panels for a lighted colume,with more smaller filters at the top. So it looks more like a piece of furniture. Just to be clear, this things sits on a old unused cold air return in my living room. Again thanks for a new idea 💡
I made this, sort of. I thought this design was top-heavy so I moved the fan to the side bottom losing one filter. I used 20x25x1, the same as my furnace. I also installed a speed control on the fan.
When you flipped the fan direction, did you also reverse the filters? I think they are designed to move air in one direction, right? I wonder why most Cosri boxes use push configuration? I wonder if one designed for home could have the fan on the bottom, pull config, and have the entire unit lifted above the ground 2-3 feet and work well.
Very professional video, I wonder if you left it in pull mode and put something on the exhaust to act as a diffuser? Or, let it run and blow down the whole shop until there isn’t any dust left to be stirred up? It seems that letting the fan get caked up will become a pain?
I came here for the filters...buh I couldn't stop looking at those fingers so close to those very sharp blades. N I was wondering is there some kind of safety gloves or tool to help?
Well done video. I have been researching air filtration for some time. Also what table saw are you using during build process? Thanks again for a great video. You can disregard the question I have now watched more of your videos and I have my answer. Thanks for great content.
Yeah, shortly after making this video, the fan used here was replaced with a new model. Either way, after retesting the drum fans with a new methodology (wind tunnel), they only put out about 1600cfm max (see updated video). Personally I like the Caterpillar fan because of the enclosed motor. Out of every imaginable configuration of fans and filters, the drum fans preform the best even if they don't hit 2000-3000cfm.
Very cool design. Got me thinking about something similar in a ceiling-mounted form. (After all, there's always limited floor space in my shop.) Would basically turn your design on its side & add a single filter to the far end (opposite the fan). Might have to remove 2 filters from what is now the top in order to mount/suspend it, so it would use 7 total instead of 8. Think it would be effective like that?
It seems like a fine idea. If you want to know for sure you can brows through the comments you will find a few ideas similar to yours. Then, reply to those comments to see if those individuals have had success with their mods
The Caterpillar fan (in the update video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NmgNQu4zDy0.html) may be ok because the motor is enclosed but I'm sure it's not rated for explosive environments. I have used it as a quick and dirty spray booth before and did not have issues but that does not meant it isn't possible. The solvents also need to be vented outside the space because the filter does nothing for VOCs. The best option (at least from my googling) would be a "shaded pole" blower motor like this www.grainger.com/product/DAYTON-OEM-Blower-Rectangular-6FHX7 The design helps to reduce the possibility of fires. There is also a specific OSHA rate of airflow for a specific size of booth. I don't exactly remember it off the top of my head but the blower in the link may be good enough for a 3ft x 4ft booth or so.
The outside is about 17.5" for both of these fans: Maxx Air (Orange): amzn.to/3fXokQC Caterpillar with Enclosed Motor (Black): amzn.to/3TD9NM3 The Maxx air that I used for this version seems to be marketed as 1600cfm now. After a wind tunnel test even the old version only preforms at about 1600cfm. They may have just updated the info or they made the fan lower quality. I'm not sure. Personally I like the Caterpillar fan because it has an enclosed motor and preforms essentially the same as the Maxx Air. Sorry for the late reply, I haven't gotten to comments in a while.
Sweet design. Questions: 1) Any idea how much better the air flow would be with 2 or even 4" thick filters, as I've read they allow better flow? 2) For the pull configuration, can you attach a flexible HVAC tube and point the air flow out a window/door? Or would that mess with the filtration capability?
If the air filter is close to it's maximum efficiency already there may little to gain by using 2 or 4 inch filters. If you only used 4 total filters rather than 8, the thicker filters would give you a boost in performance. The filter could blow air out of the room via a tube if you are trying to vent VOC's but keep in mind that there will need to be some sort of air inlet into the room to keep the fan working properly. The best configuration I could imagine for dust filtration would have the filters on one side of the room and then a duct would bring the outgoing air to the opposite side of the room. This would create a positive feedback loop in which the air would always be pulled toward the filters.
Actually your first idea to pull air through the filters and exhaust out the top is much better for fine dust air filtration. You think of it as a dust collector not a air cleaner. For air cleaners you want air turbulence in your shop so the very fine dust stays airborn and makes its way back to the filter. with the air exiting the filters will essentially be recleaned over and over instead of collecting all shop air and filtering it.
As a general air filter, you are absolutely correct! What I have found is that as a local (within 5 feet/or better at-the-source) workstation air cleaner/airborne dust collector the configuration where the fan blows into the filters is significantly more effective that the opposite. I am working on a video specifically about this concept and it's up/down sides. There is a lot on the schedule at the moment but I hope to have it out early next year.
My first instinct was that you were actually having the fan blow into the unit, so I’m glad that function ended up being the final result. Have you considered an A-frame style structure within the filter box - at perhaps half the height of one of your filters - in order to avoid turbulence at the bottom of the box? Or is there a chance to have the bottom of the box frame also have a small square filter on it?
Anything is possible. I had not thought of the A-Frame style of construction but it's a good thought... same with the square filter at the bottom. Will keep this in mind for future builds. Thanks for the comment!
Thanks for all the advice on keeping my fingers! I try to be more safe these days. There is a 4000CFM (factory rated) fan available from Caterpillar: amzn.to/3Hd9C44 No modifications needed vs. the original fan. Here is the link to the current model of the Fan used in this build (now only 1600CFM) amzn.to/3fXokQC Here is a link to the filters that I use (MERV 13 or higher recommend): amzn.to/3Lggyzb I made some 3D printed air filter clips that can replace the tape. 3D print them for free or buy them from me: www.etsy.com/listing/1210663842 Buying from these links helps support the channel! Link to the plans is in the description.
The fan I used is called the MaxxAir HVFF 16, but any similar fan should work well for this. I will add a ceiling mounted fan to my requested video list, but it may take me some time to make one. Thanks for the suggestion!
Thank you for doing this video. You did however, skip past the mesh screen info.. What size did you use? Where did you get it? And, did you test for flow before and after installing it?
Thank you, @@The3DHandyman. That seems to be a good choice. Was the fabric store online, or? Just to be clear. You do mean 500 U.S. Mesh, which is 25 microns, 0.001" or 0.025 mm?
@@SteveKluver It was the brick and mortar variety of fabric store. I browsed by how the material looked and felt... the old fashion way. The open space is about 500microns OR .5mm. You could potentially go down to .25mm but this may limit airflow a bit.
I’m working on building this; looking at the opening on the top for the fan, I notice it isn’t a perfect circle. Is it critical that I do it this way? Or can I make a perfect circle? Thanks! (FYI - I have the same model fan you use in this video)
As long as the circle size is inset from the edges of the top board by an inch or so, that should work fine. The larger the circle diameter the better just as long as the board still has some structure.
Perfect! I have it built and it’s working well so far. Question: did you come up with a good option to keep the motor housing dust-free, like a small filter for it?
Good to hear it's working well for you! Unfortunately I have not yet made a dust filter for the unit. Hopefully some time soon I can post an update for that. Until then, blowing the dust out of it with compressed air will help keep it clean.
Your airflow problem could be solved by mounting a diffuser above the fan. E.g. this one: www.amazon.com/QUICK-CONNECT-HT-2X2-SPL8-Plastic-Diffuser/dp/B010HNVF8K/ref=sr_1_17 As you have excess capacity, you should probably devise a way to add activated charcoal for odor control. Useful for those rare circumstances where something dies and you need to remove decomp smell.
A fabric store is the best option but you can order some online too. 250-500micron hole size should be fine enough to catch large particulate but not impede airflow significantly
your knee capping up your whole design by turning the fan to point into the filter. for this to work, you have to pull the dirty air into the filters and out the other side. the air needs to be pulled in from multiple directions and having the fan turn into the filters prevents that. the air will now only come in from one source and there by reduce the effectiveness of the unit.
Blowing air into the filters actually works very well. In some cases (not always) it works a lot better than blowing air up out of the filter box. I talk about it in this video and will get more into detail on it in a future video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NmgNQu4zDy0.html
Amazing how many viewers commented on safety. Shop safety awareness has come a long way in the 50+ years I've been wood-funning (who, in their right mind, calls this activity work?) The great news is how 3D handles the comments. Unlike so many of the other YT hobby "experts" he appears to take others' concerns to heart. 👍
@@Warkive I have seen the aftermath. The Microjig looks like an appealing design for a push stick. The push stick that came with the saw seems to increase kickback over my usual methods. What do you use?
@@The3DHandyman Push block for wider pieces, stick for narrower. Only time I've seen either increase kickback is if you don't keep them centered between the blade and the fence.
It’s so great to see a man receiving safety advice graciously without being defensive. There are several woodworkers here on RU-vid who are quite sloppy with table saw safety and get very defensive and offended when someone mentions it. You’ve got my respect. It restores my faith in humanity to see a man conducting himself with such class. Subscribed.
I agree, he seems to be willing to take advice in the proper fashion. I was going to comment that he's worried about long term exposure to dust but a lot less concerned about immediate exposure to carbide teeth spinning at 3500 rpm but I thought it might come out sounding a little negatively so I stopped. I've been using table saws, both professionally and as a hobbyist for over 40 years without an accident but my older brother is missing a good chunk of a finger because of a table saw in high school. I've had great respect for the power of the saw ever since and take precautions to work safely. I hope Mr 3D takes the warnings to heart.
@@rogermccaslin5963 Well said. I’ve been using one for 30 years without incident, until one day a few weeks ago I found myself absent-mindedly reaching for something on the table and my hand touched the blade the split second the blade stopped spinning (I had just shut it off). I was shocked that I had this moment of carelessness which could have resulted in serious injury. We need to keep impeccable habits in place for that one day in 30 years when we have an accidental lapse in awareness. It can happen to any of us.
i recentlyy refused to stain wood in a non ventilated area and my coworker couldnt believe how 'big of a deal' i was making. Even after I pointed out on the can that it causes brain damage. His excuse was everyone does it.. Crazy what hazards get overlooked and then people wonder why they have lung cancer or alzheimers*.
@@CL-ty6wp Yes it does kill brain cells, but only the weak ones, so doing it in moderation is actually doing yourself a favor by giving the strong brain cells more room to grow. By the way I am a self taught brain surgeon, sorry I don’t have any surviving patients that I can give you as a reference.
Nice, now mount batteries and a charge controller, use HEPA filters or at least MERV-13 and have restaurants and schools push them around to clear away COVID droplets
Love the video and the design. But I don't see how this could be built for $200. The cheaper fan costs $120. The design requires 8 filters. A 4 pack of the 3M Merv 13 filters is $89. So just the fan and the filters costs $300. Then the wood, casters and foam tape would be a little more. Am I missing something?
Glad you enjoy the design! Your math is accurate, what it doesn't account for is inflation. Since the launch of this video at the beginning of 2020 much has changed. I have a few videos that will cover mods to this unit that will be out next month. In those I will cover prefilters and multi stage filtration. These things can increase the initial cost but lower the long term operating costs of the design as well as boost performance. I also have more designs on the way for small space filtration.
I found that blowing air over enamel paint keeps it from curing properly and actually skims over slowing the drying process, anyone else find this out accidentally?
You've officially earned me tapping the bell so I get notified of every video you make! Thanks for the hard work, dedication and editing as I know how much time that can take first hand.
Such a cool video format! We're subbed! This video was fantastic. We need an air cleaner for our own shop, which is a 2 car garage, so something like this will work wonderfully. Thanks for sharing!
Awesome! Thanks for subscribing. I've been working on building a big desk for the last two weeks and the air filter has done a great job on all the sanding dust. I hope it works well for you too. If you have any suggestions for improvements, let me know!
Thanks for subscribing! I suppose I do all sorts of things. There are a few videos in the works, one of which is about how I make the animations for the channel. Stay tuned!
I have been watching every fan and air system on RU-vid for the past year and I have to say this is the best. Thank you for all your hard work putting this togeather for us. I plan on building this system as soon as Amazon get all the components to me.
Great concept and presentation! But very hard to watch as your fingers (GASP!) GOT SO CLOSE TO THE SPINNING SAW BLADE. Made me want to stick my fingers in my eyes and yell LA-LA-LA-LA-LA-LA.
I use these in a few key locations. What baffles me is people that flow the fan out of the box. If the fan stops all the crap falls from the outside of the box. I flow the fan into the box. I use 4 merv filters and a box fan. Lasts about a year. Then it's an easily disposable box of dirt and dust.
I also prefer blowing air into the box. That said, I will do a pre-filter video some time soon where blowing air out of the box makes more sense (but does require vacuuming the sides).
Nice presentation. I have used a table saw for about 58 years. 12 weeks ago it got me. I was using my riving knife and a push stick. 14 stitches and now two fingers that have zero feeling on one side each. Please give this some thought.
Hi Al! Unfortunately I'm not making the kit for this design at the moment. It requires a lot of sanding that I don't have time for. You can make this one yourself with the free plans or take a look at the new Model-B. The new design offers a lower price with lower filter replacement costs as well as faster shipping times with the same level of performance. The way the kit fit's together is a bit different, though. So, let me know if you have any questions about anything. Here is the link www.etsy.com/listing/1373712349 How to put the new kit together (this is a temp video while I finish up the official video) ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MLF8qv1tGSQ.html
What you're making is basically a large vacuum. Doesn't the filters get blown out when they become clogged easily? That's alot of air you're sucking in.
1 year later comment. U could solve the problem with the first configuration if u have a duct out of the fan to a window. Limits the mobility u probably wants
Mi occupo di depurazione d'aria da circa 40 anni e questo è esattamente quello che non si dovrebbe fare. Mi dispiace, amico, ma stai lavorando al contrario! I have been in the business of air purification for about 40 years and this is exactly what you shouldn't do. I'm sorry, man, but you're working in reverse!
Lol, yeah. I just put both versions through a smoke test and when the filters are new the "push" config is only 15% off of the pace of the traditional method. When the filters are very dirty then the "push" method is behind by 50%. This test determined how well the filter did pulling in ambient smoke, not how well it pulls particles off of a workspace a few feet away. I still love this configuration for sucking the dust off my tabletop. I will make a video about this concept at some point because it is quite contentious :)
Nice design and well documented.But as one who got a finger tip into the cutting circle of a dado stack, I urge your viewers to use some sort of push device. After dadoing a fair amount of MDFover several years, I'd not given a thought to how dull the carbide had become. Dull tools cause injuries.
Someone mentioned that a few days ago. I think it's a fine idea. Modify the design as needed! I may put together a new version of this at some point but it may be a while.
Thank you for this wonderfully informative build video. The details, animations, workmanship and drawings are great! I'm having my confident wood working neighbour tackle 6 of these for a dusty shop I operate. I'm hoping strategic placement of these 6 will perform nearly as well as a 15k industrial air scrubber. I'll send a note in a month or two on how effective the units are in a truly DUSTY environment.
I kept the "suck mode" even though it initially produces additional dust. The dust eventually is moved around until sucked into the filters. Mine is based on a box fan with 4 ea 20x30 MERV 13 filters.
I also vote for suck. I was going to try flipping the whole thing over so it poi ts down, but then opted not to, cause I didn't want it to be a hovercraft.
after using christ notap's method of a DIY dust collection system using 2 buckets and a cheap vacuum cleaner, I'm all for projects like this, and while the same parts may not necessarily be available where i live I will use your design as a guide, thanks for this! great video.
Possibly over time dust could eat away at the belt but it may not dramatically reduce the life of the part. I could see it making the belt more likely to slip tho.
Thank you, I saw these fans on Amazon and wondered it they would work for dust filtration. I saw this video by chance and glad I did. Appreciate the hard work you put into it, definitely making my own.
Hey you could get a round hepa filter that they use on larger cyclone type dust collectors, I'll bet it would work great and they can be cleaned out and used for years. They're about the same size as the setup you had.
If the air was pulled through a water filter first it would catch everything and be easily cleaned without expensive filters. Look at the water filter vacuums.
Hi. What's the brand filters? Is posibility buy this in Amazon? What's the material of the filters? Thanks... Sorry for my english... I need this filter for ten vertical panel Saw
I bought a pack of these on a website that only sells air filters. There are quite a few to choose from. Here are 2 options: www.filterbuy.com/ www.airfilters.com/
This is perfect for my shop. I clicked the link you provided for the plans, but it leads to a “404 not found” dead link. Could you check on that and let me know if there is a different link? Thanks!
Bravo, at least someone realised that blowing air OUT makes everything worse. Also you can add large dust bag inside the filter, from a industrial vacuum dust sucker (like KÄRCHER), to effectively collect and remove large amount of dust easily and preserve the filters longer, since they will catch only finer dust and not be overwhelmed with large dust.
How much "recirculation" do you thing there is? When we are talking about how long it would take to filter a given space by diving the volume by the CFM, this assumes no recirculation... Would there be a way to create a gap between the air intake and output? It would be neat to check with a meter to see the concentration of particles in the air, and measure how adding that distance affects how quickly the dust concentration goes down.
Love the design going to try it out. Echoing the concern of others here about table saw safety. Those fingers are much more useful attached and designing great things like this than lopped off.
The way you move your hand about the blade dawg. Yeah yeah, I know. But the blade only needs to win once. Just saw a 58 year old dude in the shop lose the tip of his pinky last week. First major accident after 40 years of carpentry. Arrogance is a killer.
Hah, yeah... I've been alerted to my poor practices almost daily on this video. Thanks for your concern. I worked with a guy that used a fork lift for 30 years and then cut his leg off one day. Arrogance can get you at any age and any level of experience. I'm working to be more safe. Hopefully future videos will show as much
If you don't have a table saw, consider that you can make a box from 1" x 1" wood, and that the filters are 1", just make 8 window holes in your box that are 20"x20"
would be interested to see how well it works if you put the fan in the middle and had a cube of filters on each end. Would solve the motor dust problem, the fan would be closer to the ground to suck up more dust, and also diffuse the fan exhaust
So far I'm really happy with the performance of this unit. I am moving into a new shop in a month or two and will be making some air filtration upgrades to this deign as well as adding a new system when I do. Stay tuned!
At about minute 2:21 you show a table saw technique that, I feel, you should really rethink showing in this setting. Not that YOU'RE in danger of getting cut up but the idea of putting your hand behind a running blade is a loser. If someone sees that and stands on the side where your camera is and there was a kick back a persons left hand could be badly cut when it gets pulled along with the board. Ask me how I know. Also, in my shop I rarely use a push stick for anything down to 1.5" wide but in this setting my feeling use one for anything narrower than your hand.
With the reversal of the air flow, you didn't mention if you reversed the orientation of the filters, as they almost always have a specified direction of air flow, which is indicated on the filter itself.
After seeing how you have total disregard for your hand and fingers with your table saw, you've lost all credibility and I've stopped watching your videos.
Great Video! Excellent job quantifying the effectiveness of the various fans and filters out in the market. Loved your design (from a designer) and modified it for a 24" drum fan (move more volume quicker, before the dust settles). I really don't have that much room, but it's on wheels, so I can maneuver it around all the other equipment to get it up close. I operated it for the first time last night and noticed the difference immediately. Thank You!!! I got carried away and started cleaning at least 25% of my area just to see how well it worked. I was purposely pushing dust out in the air to watch how well it works. Awesome, yet so simple!! I chose a Merv 13, 16x25x1. I stacked them the short way for a lower unit and more stability. Then added 2" wheels and the 24" drum fan that is 10" tall. Hence, the whole thing sits over 42" off the floor. I am contemplating making a down draft table to straddle the unit (just roll it right under the table when ready for that operation). Sanding makes the most amount of harmful dust. I'm just not sure if it I will block some of the effectiveness of the unit? Well, I guess I will try it, and could always reconfigure it to use the current Dust Collecting system the removes the larger chips and dust from all the machines, but doesn't get the airborne dust that this unit excels at! Thanks again!!! You have definitely earned my subscription!!
Awesome! The shorter unit is definitely nice to have next to a table. I love the idea of a downdraft table as well. I've been experimenting with new designs and this may make it into a future video. Thanks for subscribing!
@@The3DHandyman I would love to see you prove out the down draft table concept. That would be awesome!! Thanks again for providing this excellent analysis!! Truly appreciate your effort!! Be Safe and stay healthy!!
Wondering if it could work in the pull configuration, but aimed down? Fan on bottom... it will definitely stir up floor dust, but maybe that's OK, because it filters it???
@NabaalSaporo Good question! It's a synthetic mesh with approximately .5mm (500 micron) openings. I bought mine at a fabric store but I'm sure the internet has some.
@@The3DHandyman We need you to find out for all of us what it is and stick the info in the video description and on your site! Thanks for this info though!
Great design. My Jet AFS recently died and I was looking to build my own when I came across your design. I've downloaded your plan and making mine to accommodate 20x20x1 filter. Regarding the outer layer of screen you have on your video, what is it and where did you get them? Thanks again.
Thank you! The outer layer was a piece of synthetic mesh that I picked up at a fabric store. It was helpful to brows the options in person but if you were to buy something online, I would look for something with 200 micron (.2mm) openings. This idea is that this will capture large particulate but not impede air flow.
Ohh, safety cringe. 1:57 Use push sticks and don't ever put hands on the front side of the blade. If a workpiece ever gets launched by the blade you just want to let it go. Your brain will never react fast enough to let go with that hand in front.
In this video you show a short clip of planning with a Delta lunchbox planner and a dust collection shroud. Where did you build/buy that? I have the same planner and the OEM dust shroud is terrible at best. If this is a model you built do you have any drawings.
Nice catch! I couldn't agree more, the factory dust port clogs in seconds. Total afterthought. My solution was made at a time before this channel so I don't have any plans or a video of the build. But I can describe it for you in as much detail as I can remember... This video has a few different angles of the design at 3:40 and 5:40 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IIvMcjH3ICg.html The design is as thick as the factory design. Plastic screws hold a board on to the rear of the planer. The board has 2 hinges on it so that the DIY dust port can be tilted up to remove any clogs if they occur. The base of the unit is MDF. The sides are 3/4" plywood that have slots cut into it with the table saw so that it can bend around the rear side. Then there is a strip of veneer that goes over that because the plywood cracked a little while bending it. After this glue up dried I got a thick stretchy piece of fabric to drape over it in a way that smoothly transitions the square output on the planer to a rounded scoop at the back. No edges for chips to get hung up on. Then I coated the cloth with epoxy resin to make it hard and smooth. A small container of epoxy should be plenty. The top is plexiglass so I can see if there is any build up. The port for the dust collector is actually a 4" plumbing fitting. If I remember correctly, I went with that because it had a sharp 45 degree bend that matched the shape of the resin cloth... and it had a nice flange. The design works effortlessly. Duct/chip build up only happens if I have a clog in the dust collector or a kink in the tubing. I hope that helps! Let me know if you have any other questions.
@@The3DHandyman That works....The additional video footage helps with your description. I think the planner is a decent one for the price point but the DC is horrible. I hope to build something similar in the future. I have not seen anyone else change this as you have. Thanks for the response and keep doing what you do. I am in a small basement shop and will be building your air cleaner soon. I am trying to decide on fan pointing down or up. I see many others have asked this question. It is hard to visualize fan down into filters as "drawing" the same amount of air as when pointing up but if the volume of air in a space is constant I wonder if the direction of the fan makes a difference? Blowing out the top would kick up a large amount of loose dust that is in the shop but would eventually pass through the filters. Once the room is "clean" the daily operation should not kick up more dust.
@@thaynegouse576 Yeah, the push vs pull config really just comes down to preference. While I work with cement I don't want the dust to go anywhere in the shop at all so the push config works nicely for that. The pull config is just fine for general use.
@@thaynegouse576 Let me know how you like the filter once you get it going! I like the "down" fan position because it sucks cement dust off my work surface really well. If I point the fan "up" then some of the airborne dust gets thrown into the outgoing stream of air and I really don't like cement dust getting anywhere. I also like the down position for cleaning parts and filtering vacuum pump exhaust. "Up" wouldn't work so well for those particular activities....but for general airborne dust filtration, the "Up" method will work just very well for keeping the air safe to breath. The shop I am working with for the air filters kits is pretty much a constant cloud of dust. The "up" position would be the right thing for that space.
Stupid question and maybe I should just build it to find out. But what if you mounted the fan on the bottom, let the air push out towards the floor. You’d kick up the dust, yes, but theoretically it should get sucked back into the filters. Keeps the balance point low, doesn’t push everything to the ceiling.
A few people have mentioned this. Not sure if anyone has built on yet. It seems like a sound concept. If you want, you could build one and then post about how it works
Thank you. I hadn't considered smoke filtration as a possible use case. Great point! For filtering out smoke particles people should consider using MERV 11 or higher air filters. The higher the rating, the better. Thanks for the comment.
