Now you have built it you can use it as a head porting flow table and test the flow of each port in a cylinder head . A simple hand held air flow meter will work with a bit of grease to seal the head to the table .
The best way for most guys to do this is go to a junkyard. You can find something that you can convert into such a table. At my junk yard they often have Stainless steel deli tables. you could easily Convert something instead of fabricating from scratch
Here's a tip if you ever find yourself in need of a knarley fan. Hit up your local HVAC company. They usually have junk units stacked up like cord wood and commercial units have huge air handlers in them. A home furnace air handle would have been smaller with similar or more power, perfect if you need to scale down for a smaller shop. Thanks so much for making this!
Glad to see you are concerned about your health. From experience use ear protection for everything. Finally got my hearing checked after 25+ years in construction- circular saws, reciprocating saws, air compressors, hammer drills, angle grinders, nail guns, bench grinders, cut-off saws etc...Turns out I can't hear much of anything out of my right ear (basically deaf in it) and I lost the ability to hear certain frequencies in my left, the same frequencies that my daughters voice sometimes hits, while yes it sounds humorous... it is ,to me, sad... I don't know how much I have missed in conversations with her! I use plugs and muffs now trying to save what little hearing I have left. SIDE BENEFIT, I wish I would have used muffs years ago, turns out idiots don't try to talk to you when you have them on..makes it easier to ignore them and not appear rude!
Very sorry to read that, it is one of the things that can creep up on you without realising as the brain and ear partially compensate for the loss - and by the time you realise there is a problem it is far, far too late. For you, it is an unfortunate, classic example of what I tell the kids who don't think it matters "do you want to be able to hear the laughter of your grandchildren at play?" Personally, I used the ear muffs I could find - left ear canal is quite small and most plugs don't fit - and after working in many noisy industries and around noisy engines, when I had my hearing checked a few years ago, in my mid fifties, they were really surprised just how good it still was - better, they thought, than many of the teenagers who were tested who listened to music on earbuds - I've know quite a few who listen at volume levels high enough for my to identify their 'music' from another room, FFS! It helps that when I do listen to music, etc, I do tend to have the volume well down - well, mostly... - especially at night when the radio volume is easy to hear yet so low that I can have problems hearing it during the day over normal background sounds.
As a German industrial mechanic and future engineer I really appreciate your design, craftsmanship and dedication to quality. It looks really nice besides it totally suck 👌🏻
Thank you for this! My grandfather was a welder and related or not lung cancer took him out as a no smoker. He lived a full life and by no means died young but you showing this and how with basic shop things people can do this is neat.
Justin, I went to Airco Welding Tech in Oakland,Ca in '84. Got out of it a few years later. As of '18, I'm WFO! Tuned up your vids first & was hooked again! Your a Pro & deliver well, Thank You Brau! I Am currently building your Downdraft Table, with an added blower on the side with a hose & funnel set up! Thanks Again! Don M. Illinois
I was also one of the people that said those fans pulled a good amount of vacuum but make almost zero pressure on the positive side. The reason this works is because you did it right for that type of fan, filter on the vacuum side with a proper duct(just like mech fan from a car). source - Mech engineer BTW been watching your channel since you were in the tan garage with the Harley. Definitely cool to see the operation grow like this. always makes me feel like i can go out and build whatever i dream up
So I learned a few things for my build. Namely, the filters and what the bare minimum filtration "level" you would need. It's rated in MERV and for shop dust, or powder coating dust, you'd need at least a MERV 14 filter.
I liked your use of 2 - 2X4’s with C - clamps as a brake to bend sheet metal, great idea for a guy like me without a brake. Also it would be wise if you to utilize some soft foam to kneel on your shop floor. Take it from me after 1 knee replacement and 1 to come. I use to be a marine diesel mechanic as a younger man and I knelt on concrete, diamond plate etc with no knee pads. Be good to yourself and your knees. Great video, thanks for the way forward. 👍🏻👍🏻
i think i am now addicted to your channel ..... you sir ROCK and i am as green of a fabricator/welder as you can get and decided to take on the challenge of building a truck rack for my rig wish you were closer id love to take your courses ... cheers from north of the boarder
This video was as professional as it gets. Very impressive if you are doing it solo....just as impressive if there is a team putting it together. (We also enjoyed the irony of a table being made for the sake of health....and then a dude coming up with dragon lungs to give it the stamp of approval. Long live Dragon Lung!).
Ironically I just put Spaceballs on the tv for my wife and then started watching this with my headphones on. So I had to stop and tell her why I was cracking up. Quality work and great instruction, like always.
Nice work! Now you've got me thinking about how to build one of these on a Red Green budget. I'm thinking of a gas grille with the burners torched out and a kitchen exhaust fan or two where the drip tray used to be.
Take the lid off an old stainless BBQ that you pick up for free on the roadside.... Comes with grates, just add the bottom stuff, back catch & anti fatigue matt. Then figure out ducting... Bam!
Definitely clean these out. Had one explode at a place I worked at. The explosion from metal powder sucked air into the wear house so quick I could feel and hear the building breath and man it was loud. The sanding operator had burns all over his arms hands and beard was burnt like hell. Burnt the latex gloves down to the rolled up ends at the wrist that was all that was left Paper sleeves were also gone.
Very nice build! Thanks for sharing, love your channel. The only things I'd add would be a flexible light, and maybe a 4" deep shelf on the back.. it'd be a place to put your safety glasses, or whatever else. It'd be super easy to build and complete the table. A 50 or 100 watt led light is less than $30 and super bright.
Love how professional and clean that table looks. The sheet metal screwed on gives some nice serviceability should the whole thing need to be torn apart. Would love to have more space in the garage for something like this
I like the table. I use all the PPE I can- dust mask, ear muffs, face shield. This table project will be part of my PPE budget. Better to save what I have left. I'm certain mine won't be as nice as yours, but it will definitely keep my shop- and me- cleaner.
Think I would have used a 1 hour, twisting timer switch for lighting, instead of the keypad. less bother to turn on, and cant be left on all night if I'm careless.
This is a great looking table. I'm not trying to be "that guy" but I encourage you to use a particle counter to test to see if you are filtering the dust or just blowing most of the small particles through the filter and fan. It's easy to miss the really fine dust because it is too small to see. This is certainly a lot better than no filtration but if you get a particle counter you will see that your shop still gets way over healthy limits. Amazon sells air quality meters for around $150 now. That would be enough to know what is working and what's not. I've done a lot of filtration testing, including testing with box fans and filters and I can say for sure that you won't get good flow AND efficient filtration with just one filter. You will need much more filter area and higher-grade filters to get good flow and good filtration using a box fan. A squirrel cage blower develops around 5x more pressure than a box fan so you can use multiple stage filtration which is a good idea when you are filtering high concentrations of dust. That is an awesome looking table.
@@mxcollin95 I use a Dylos DC1100 pro with a computer interface so I can log particle counts over time. It's not a professional grade particle counter but it works well and doesn't cost $$4,000. There have been a lot of new air quality monitors come on the market since I bought the Dylos 4 years ago so you can probably find something less expensive now. Formaldehyde and VOCs are also common pollutants in workshops and some of the new meters measure those also. I check particle counts outside to use as a reference. With my air filtration system my shop air typically registers at about 1/10th the particle counts compared to outside air.
Throw your chop saw on it when cutting. It will contain the chips and also get you off your knees. You might need to change your side shields but you could easily make side pods to support longer metal.
I made one for wood sanding. I found a used furnace blower. You can get a direct drive multi speed or just the cage and a separate induction motor. Much more powerful. Up I just put the blower inside then furnace filters all the way around the front and back. Ofcoarse wood has a lot more dust maybe you. Could get by with filters on the side maybe the back. I don’t reuse those house fans. Go to any commercial hvac guy or company usually they have tones of them laying around for replacements cheap.
Justin, this is one of your best videos. I love the idea and I think I can change the concept for myself enough that I can do it even cheaper. I wish I had some of your new equipment. Your success is well deserved.
I built something similar to this utilizing two fans, but I noticed that many metal particles obviously had more inertia than the vacuum in this unit could capture. I literally quadrupled the power with furnace fan motors, yet was still finding stuff on the floor. It takes a lor of airflow to capture high speed grinding debris. The only thing that truly works, is to build tall sheet metal barriers on three sides, and to carefully direct the debris in that direction.
I made mine out of an old stainless gas grill 8 burner that had bad burners =Free with plasma cutter and cheap box fans. yours is much nicer looking but I have time and 100 bucks in mine. love the channel.
A ring around the fan changes the fluid dynamics of the moving air and makes a fan more efficient. It is why some drones have a cowling around the props.
Excellent! I think the only thing I would change would be to extend the raised grill to the right hand side in place of the drop down side. Keep the left side hinged, but make the right an air intake too as the majority of the sparks are heading that way due to the direction of the grinder rotation. The vape test was very helpful!
Nice work, like the how to’s at the start for those without expensive machinery. Love your pedal technique - this is why I have a button on my torch as well as I’m nowhere near as agile as you are. 👍😁
Your hair look's much BETTER!!! Dont miss that "roster comb" even a little bit. When I first saw you I thought you were some nut and passed you by. Stumbled across you again and you got skill. I started in a fab shop of my grand father in the 60's on oil rigs. Later custom car's-truck's and now aircraft. You got skill son glad I found you again and gave you another shot. LOL Even us OLD farts can learn new tricks. PEACE be with you.
The one I copied was a 6000 sanding table. Your fab work looks great. You could make like 10up in a day. Put industrial fans I.e. furnace blowers . Which by the way you can use a continuous motor speed control plus you could offer 110 or 220 wiring for guys like me with everything in the shop 220. You would looks great make the air control professional and sell that one for 3700 easy. Especially with the stainless
I built my fume extractor out of a bouncy house blower. Those things move a lot of air! I may build one of these down draft tables and modify it to use another bouncy house blower! You could use this for painting small projects also! Nice work!
Definitely looks like something our shop could use. We currently use the top of the welding table which is 1/2" steel plate, no slots or holes, tucked in a corner with 10" on each side from the walls. Makes for lots of metal grinding dust in the floor, table, rod rack, anything in the vicinity.
Love it! I made a cyclone cart for my shop-vac, and it works great for everything but sawdust. What a pain to clean and change filters. Even if the dust is heavier than your boy's vape smoke...I'll figure it out, lol. I don't know why this isn't more popular for woodworking? Enough people build air purifiers, but not downdrafts??
Now you have built it you can use it as a head porting flow table and test the flow of each port in a cylinder head . A simple hand held air flow meter will work with a bit of grease to seal the head to the table .
Very clean and professional looking - Nice! Cost you 500 Cost me at least 1000 if I have a shop do all the plasma and brake work (If I dont have a cnc plasma table or long enough brake). But, the Concept is definitely replicable for most of us If we dont require something that looks like it jumped off the Catalog Page like this baby😆 I'm Jealous of how Seriously Clean this turned out. I love how surprised and pleased you are with yourself and that you didn't just Already Know you could Pull It Off. It's like you haven't watched yourself so much in the way we watch you work. -We already know its gonna be good stuff brother- Thanks for the video and great concept to follow for my own table.
Mine is a combo unit - plasma, grind, and saw cut, and its much more simple.. no dust trays (shop vac it out in under a minute), no folded edge sheet metal.. just a sealed box with fans and a little sheet metal deflecting inside above the fans, the top is replaceable 1x 1/16" slats on edge at 1" intervals. The extra width is for my Evolution saw because it always makes a helluva mess, this will catch most of it.
Excellent concept and problem solving!!! Worth considering: The fans really need to be industrial units that can handle the load when pulling against back pressure caused by a dirty filter and/or large objects blocking the ports. As it is the overlap between the rubber pad and the lower holes has already somewhat impeded the flow. Sure the fans will work but they will also eventually give up. Plus, unless your filters are capable of keeping minute metallic (aka conductive) particles from making it inside the motor assemblies (standard house fans have zero protection against such things) , a short circuit and/or arcing could occur leading to damage or even worse, a fire. Motors/fans designed for these applications are more expensive because they are designed for years of service under heavy loads and nasty materials. Down the road, I see another video where you eventually build adapter plates to mount the new industrial units. Love the Spaceballs reference!
I'm thinking of building something like this for grinding but also flux core welding. I'm tired of hot boxing the garage every time I'm working on a project lol even if the filters only filter half of the fumes I think it'll be well worth it
Awesome build, I’m inspired. I wounder if the filter was pulled away from the fan a few inches it would allow for a better pull of air kind of like down pipes going onto a carburetor helps with velocity. Looks like it works nicely as is. Thank you for your channel.
24:31 You should go back with a nut and bolt and eliminate the cutting hazard. It's really the only thing in your process that I'd change. Nice build and thanks for the inspiration!
Great DIY, and definitely something I need to build for the new 'grinding room' I'm adding to my shop. As I mentally ran through what I already had to build one, I remembered the squirrel cage fan and motor I just saw this morning as I was digging through my plumbing inventory, looking for what I needed to get water flowing again, (burst pipe this past Winter has morphed into re-plumbing my house.) I scavenged the 12-14" diameter squirrel cage fan from an old, old commercial refrigerator unit, (the one's grocery stores are throwing out). For an application like this, they will work great because the motor is not in the air path. The only downside to using a box fan is the grit will flow right past the motor of the box fan, and it will not live long. Old commercial squirrel cage fans have greaseable bushings for the fan, so keep it full of grease, and no harm should come to it, as long as you duct it well enough to keep the grit on the fan side of the assy. Hope this helps someone.. GeoD
Amazing build! A true craftsman. Caution, those exposed fan motors will likely fail due to fine particle grit carry over that will occur around & through the filter. Those cheap residential fans just don't hold up in that environment. Also, without a spark guard on the inlet to the filter, expect to see some melting or burning of the filter element. Ask me how I know...Been there, done that.
This is a cool project and dude, its sooo clean!!! I'm telling you; you're the guy that people aspire to be like! I'm not a professional welder/fabricator, but you seriously motivate me to do better
Maybe could have put some foam seal in at places to increase the air flow, but nicely done. I have a wood work bench that is very close to that size that I'm now wondering if I can adapt tops to do this..
Great video, I like the enthusiasm making things better as you go. That's how I am I get all excited with a plan in my head and making it better as I go. Real neat project!
Nice project! I can suggest one very small addition to increase the air flow and reduce the sound level a bit more. Add cylindrical sheet metal shrouds around the fans attached to the flat sheet metal just inside the fans to reduce back flow around the fans. Also, I am surprised since you have that fancy laser cutter that you didn't cut a nice looking grill in the flat sheet metal outside of the fans instead of using the cheap plastic grills.
I would mount the fan motors outside of the table...either mount on the sides with chain or belt drives or on the back with shaft drives. Then duct the airflow outside of the shop.. That way I could also use it for projects that emit flammable gases
Hey Justin, that is a great looking, well functioning table! I really like the look of the hidden fastenings on the front and side panels! Your new shop is really coming together! Keep up the good work! Cheers Aaron
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Now you have built it you can use it as a head porting flow table and test the flow of each port in a cylinder head . A simple hand held air flow meter will work with a bit of grease to seal the head to the table .
The best way for most guys to do this is go to a junkyard. You can find something that you can convert into such a table. At my junk yard they often have Stainless steel deli tables. you could easily Convert something instead of fabricating from scratch
You put a keypad on your grinding table so that what? Nobody turns on the table? What do you work at home depot? 😑👎
"I love how quiet these fans are!"
On a grinding table....
Let that sink in for minute lol
Cocaine is one hell of a drug
yeah but imagine if they were louder than grinder :D
Be mad not to want any extra noise in the factory! You might be one of those ‘be proud, make it loud’ type guys?! 🤦🏽♂️
Decibles add up, they don't override or cancel eachother out. The more you can reduce, the less damaging it is.
If you are grinding a lot of pieces with downtime between pieces, you can leave the fans running and still hear yourself think... ::shrug::
Here's a tip if you ever find yourself in need of a knarley fan. Hit up your local HVAC company. They usually have junk units stacked up like cord wood and commercial units have huge air handlers in them. A home furnace air handle would have been smaller with similar or more power, perfect if you need to scale down for a smaller shop. Thanks so much for making this!
I only grind lead so the dust is heavy enough to fall straight to the ground.
Air filter schmilter.
I just smoke ciggies to filter the air so it's clean, and any toxins are burned by the heat.
It's a win/win.
The Schwartz is strong with this one. Very killer build and very unique.
Glad to see you are concerned about your health. From experience use ear protection for everything. Finally got my hearing checked after 25+ years in construction- circular saws, reciprocating saws, air compressors, hammer drills, angle grinders, nail guns, bench grinders, cut-off saws etc...Turns out I can't hear much of anything out of my right ear (basically deaf in it) and I lost the ability to hear certain frequencies in my left, the same frequencies that my daughters voice sometimes hits, while yes it sounds humorous... it is ,to me, sad... I don't know how much I have missed in conversations with her! I use plugs and muffs now trying to save what little hearing I have left. SIDE BENEFIT, I wish I would have used muffs years ago, turns out idiots don't try to talk to you when you have them on..makes it easier to ignore them and not appear rude!
Very sorry to read that, it is one of the things that can creep up on you without realising as the brain and ear partially compensate for the loss - and by the time you realise there is a problem it is far, far too late.
For you, it is an unfortunate, classic example of what I tell the kids who don't think it matters "do you want to be able to hear the laughter of your grandchildren at play?"
Personally, I used the ear muffs I could find - left ear canal is quite small and most plugs don't fit - and after working in many noisy industries and around noisy engines, when I had my hearing checked a few years ago, in my mid fifties, they were really surprised just how good it still was - better, they thought, than many of the teenagers who were tested who listened to music on earbuds - I've know quite a few who listen at volume levels high enough for my to identify their 'music' from another room, FFS! It helps that when I do listen to music, etc, I do tend to have the volume well down - well, mostly... - especially at night when the radio volume is easy to hear yet so low that I can have problems hearing it during the day over normal background sounds.
Snowflakes..
@@dontblameme6328 Twat...
Your making up for it with long conversation here
@@FOOKTH-camNUMBERS
Thank you.
“1, 2, 3, 4, 5?! That’s the same combination I have on my luggage! “
Love the references. This was epic.
As a German industrial mechanic and future engineer I really appreciate your design, craftsmanship and dedication to quality. It looks really nice besides it totally suck 👌🏻
“If you’ve ever priced out stainless steel, you know you’ll choose aluminum” 😂
That's like when people ask me if I drink, having lost my pride year's ago, I alway's reply, only if your buying. ;->)
I guess it's a thing on TH-cam to repeat lines from the video .
I dont understand ?
@@Goofy948 Ever quote a movie?
@@Goofy948 it seems to be a thing, unfortunately these people havent figured out how to do the timestamp thingy yet.
@@ixamraxi
Maybe once
Thank you for this! My grandfather was a welder and related or not lung cancer took him out as a no smoker. He lived a full life and by no means died young but you showing this and how with basic shop things people can do this is neat.
Justin,
I went to Airco Welding Tech in Oakland,Ca in '84. Got out of it a few years later. As of '18, I'm WFO! Tuned up your vids first & was hooked again! Your a Pro & deliver well, Thank You Brau! I Am currently building your Downdraft Table, with an added blower on the side with a hose & funnel set up!
Thanks Again!
Don M.
Illinois
I love the pedal work whilst kneeling and tacking up! Poetry in motion!
Yup. I think finger control comes in handy in situations like this
This is my favorite thing I’ve seen built on the channel.
I was also one of the people that said those fans pulled a good amount of vacuum but make almost zero pressure on the positive side. The reason this works is because you did it right for that type of fan, filter on the vacuum side with a proper duct(just like mech fan from a car). source - Mech engineer
BTW been watching your channel since you were in the tan garage with the Harley. Definitely cool to see the operation grow like this. always makes me feel like i can go out and build whatever i dream up
So I learned a few things for my build. Namely, the filters and what the bare minimum filtration "level" you would need. It's rated in MERV and for shop dust, or powder coating dust, you'd need at least a MERV 14 filter.
I liked your use of 2 - 2X4’s with C - clamps as a brake to bend sheet metal, great idea for a guy like me without a brake. Also it would be wise if you to utilize some soft foam to kneel on your shop floor. Take it from me after 1 knee replacement and 1 to come. I use to be a marine diesel mechanic as a younger man and I knelt on concrete, diamond plate etc with no knee pads. Be good to yourself and your knees. Great video, thanks for the way forward. 👍🏻👍🏻
I didn't watch it all the way through, but nice BBQ mate 🤣🤣🤣
Lol bro i use a old grill cabinet as a rolling shop table and had that same idea of leaving the top on one adding a vacumm and having a grinder table
@@rustedratchetgarage6788 nice!! Multi tool aha
LoL ...
i think i am now addicted to your channel ..... you sir ROCK and i am as green of a fabricator/welder as you can get and decided to take on the challenge of building a truck rack for my rig wish you were closer id love to take your courses ... cheers from north of the boarder
Excellent craftsmanship! I will be making one similar, but NOWHERE near as nicely finished. Thanks for a great video.
This is great idea. In a workshop that does this all the time this is an important piece.
This video was as professional as it gets. Very impressive if you are doing it solo....just as impressive if there is a team putting it together.
(We also enjoyed the irony of a table being made for the sake of health....and then a dude coming up with dragon lungs to give it the stamp of approval. Long live Dragon Lung!).
Time to change that combination lock on my luggage... fantastic job there and it’s going in my list of things to make.
How am I ever going to get out of my lazy boy and make something with folks creating amazing stuff like this. That was down right cool.
Ironically I just put Spaceballs on the tv for my wife and then started watching this with my headphones on. So I had to stop and tell her why I was cracking up.
Quality work and great instruction, like always.
Nice work! Now you've got me thinking about how to build one of these on a Red Green budget. I'm thinking of a gas grille with the burners torched out and a kitchen exhaust fan or two where the drip tray used to be.
I'll watch that video 🤣
Im doing it as we speak
Take the lid off an old stainless BBQ that you pick up for free on the roadside.... Comes with grates, just add the bottom stuff, back catch & anti fatigue matt. Then figure out ducting... Bam!
@@TheFabricatorSeries Would an old washing machine or dryer shell work too?
no doute to late now but kitchen exhaust fan i have found to be as useful as a fart in a spacesuit!!
That table is Sick AF. And the added bonus of Spaceballs references made it fun to watch.
Definitely clean these out. Had one explode at a place I worked at. The explosion from metal powder sucked air into the wear house so quick I could feel and hear the building breath and man it was loud. The sanding operator had burns all over his arms hands and beard was burnt like hell. Burnt the latex gloves down to the rolled up ends at the wrist that was all that was left Paper sleeves were also gone.
Very nice build! Thanks for sharing, love your channel. The only things I'd add would be a flexible light, and maybe a 4" deep shelf on the back.. it'd be a place to put your safety glasses, or whatever else. It'd be super easy to build and complete the table. A 50 or 100 watt led light is less than $30 and super bright.
I am in awe at the quality of your work and bench. Hats off to you.
One key Bonus is this could be left on in a small shop to scrub your air. Great work!
Love how professional and clean that table looks. The sheet metal screwed on gives some nice serviceability should the whole thing need to be torn apart. Would love to have more space in the garage for something like this
I like the table. I use all the PPE I can- dust mask, ear muffs, face shield. This table project will be part of my PPE budget. Better to save what I have left. I'm certain mine won't be as nice as yours, but it will definitely keep my shop- and me- cleaner.
This is a cool idea. I didn’t know they made such a thing but yours looks freakin awesome. Showing the clouds getting vac-u-sucked was good to.
Think I would have used a 1 hour, twisting timer switch for lighting, instead of the keypad. less bother to turn on, and cant be left on all night if I'm careless.
I like your excitement at 16:00. This is the kinda stuff that keeps me motivated!
This is a great looking table. I'm not trying to be "that guy" but I encourage you to use a particle counter to test to see if you are filtering the dust or just blowing most of the small particles through the filter and fan. It's easy to miss the really fine dust because it is too small to see. This is certainly a lot better than no filtration but if you get a particle counter you will see that your shop still gets way over healthy limits. Amazon sells air quality meters for around $150 now. That would be enough to know what is working and what's not.
I've done a lot of filtration testing, including testing with box fans and filters and I can say for sure that you won't get good flow AND efficient filtration with just one filter. You will need much more filter area and higher-grade filters to get good flow and good filtration using a box fan. A squirrel cage blower develops around 5x more pressure than a box fan so you can use multiple stage filtration which is a good idea when you are filtering high concentrations of dust.
That is an awesome looking table.
What brand of air quality meter would you recommend? (From a cost vs. accuracy standpoint? I’m on a bit of a budget.)
Thanks for the interesting comment. 👍
@@mxcollin95 I use a Dylos DC1100 pro with a computer interface so I can log particle counts over time. It's not a professional grade particle counter but it works well and doesn't cost $$4,000. There have been a lot of new air quality monitors come on the market since I bought the Dylos 4 years ago so you can probably find something less expensive now. Formaldehyde and VOCs are also common pollutants in workshops and some of the new meters measure those also.
I check particle counts outside to use as a reference. With my air filtration system my shop air typically registers at about 1/10th the particle counts compared to outside air.
Shop Hacks thank you very much for the info!
if It's not filtering the dust, The fan will fry after about two weeks of heavy use. Ask me how I know.
Throw your chop saw on it when cutting. It will contain the chips and also get you off your knees.
You might need to change your side shields but you could easily make side pods to support longer metal.
I was totally thinking this as he was kneeling on the floor with the chop saw, lol.
That's a good suggestion
I made one for wood sanding. I found a used furnace blower. You can get a direct drive multi speed or just the cage and a separate induction motor. Much more powerful. Up I just put the blower inside then furnace filters all the way around the front and back. Ofcoarse wood has a lot more dust maybe you. Could get by with filters on the side maybe the back. I don’t reuse those house fans. Go to any commercial hvac guy or company usually they have tones of them laying around for replacements cheap.
Cool table! 6:23 Everything is so organized and clean, then there's that hanging electric cover..
Justin, this is one of your best videos. I love the idea and I think I can change the concept for myself enough that I can do it even cheaper. I wish I had some of your new equipment. Your success is well deserved.
Love the SpaceBalls references buddy hahaha well done!
I built something similar to this utilizing two fans, but I noticed that many metal particles obviously had more inertia than the vacuum in this unit could capture. I literally quadrupled the power with furnace fan motors, yet was still finding stuff on the floor. It takes a lor of airflow to capture high speed grinding debris. The only thing that truly works, is to build tall sheet metal barriers on three sides, and to carefully direct the debris in that direction.
I made mine out of an old stainless gas grill 8 burner that had bad burners =Free with plasma cutter and cheap box fans. yours is much nicer looking but I have time and 100 bucks in mine. love the channel.
A ring around the fan changes the fluid dynamics of the moving air and makes a fan more efficient. It is why some drones have a cowling around the props.
Excellent! I think the only thing I would change would be to extend the raised grill to the right hand side in place of the drop down side. Keep the left side hinged, but make the right an air intake too as the majority of the sparks are heading that way due to the direction of the grinder rotation.
The vape test was very helpful!
I’ve retired after 44 years. Watching your video in high speed..... makes me jealous and more tired. Sucks to get old
A fan is a fan it's all about its static presure your table clearly has great suction. Top job my man
CAD
Cardboard Aided Design
PROJECT BINKY ! :D
That's the same CAD version I use 🤣
@@aaronyoung5876 that's only version I can AFFORD!
"Cardboard Aided Design", from Collin Furze video?
I have a normal household Cat.
@@fila1445 In Colour!
Nice work, like the how to’s at the start for those without expensive machinery. Love your pedal technique - this is why I have a button on my torch as well as I’m nowhere near as agile as you are. 👍😁
I created a dimple die with old bearing races and my hydraulic bearing press
Do you have any pictures anywhere of this setup?
I'd love to see this as well
Your surrounded by air holes🕳 while using that table. Nice work!
Your hair look's much BETTER!!! Dont miss that "roster comb" even a little bit.
When I first saw you I thought you were some nut and passed you by. Stumbled across you again and you got skill. I started in a fab shop of my grand father in the 60's on oil rigs. Later custom car's-truck's and now aircraft. You got skill son glad I found you again and gave you another shot. LOL
Even us OLD farts can learn new tricks. PEACE be with you.
I love the staying "There's no tight or wrong way"... thanks for another awesome video 👍👍
Just watched the follow-up video and goodness I never expected it to work that well. Coming back to study😂
It's hard to beat great suction, nice build pal.
slick! I built a table using a 55 gal drum and a blower motor before I saw this great box fan idea
The one I copied was a 6000 sanding table. Your fab work looks great. You could make like 10up in a day. Put industrial fans I.e. furnace blowers . Which by the way you can use a continuous motor speed control plus you could offer 110 or 220 wiring for guys like me with everything in the shop 220. You would looks great make the air control professional and sell that one for 3700 easy. Especially with the stainless
great job, this is going to be a great upgrade to many home shops, thanks for taking the time to make the video!
I built my fume extractor out of a bouncy house blower. Those things move a lot of air! I may build one of these down draft tables and modify it to use another bouncy house blower! You could use this for painting small projects also! Nice work!
Thanks. I didn't realise I wanted a down draught table, until now. 😁
Same here, I don't even own a grinder or a welder yet 😂😂
Definitely looks like something our shop could use. We currently use the top of the welding table which is 1/2" steel plate, no slots or holes, tucked in a corner with 10" on each side from the walls. Makes for lots of metal grinding dust in the floor, table, rod rack, anything in the vicinity.
You could add blades to the existing fan blades... Thanks for this video. I just finished building mine. I like the the mat and the hinged sides.
You really should just buy cans of Perri-air .
Why? The combination is just 1, 2, 3, 4, 5. He should have no problem getting inside the air lock.
make up some perri-air stickers and put them on your O2 Tanks
@@VTdarkangel 1,2,3,4,5? That’s amazing, I’ve got the same combination on my luggage!
I dig that you cross-broke those side panels. They stiffen the panel, for those who didn’t catch that.
Beautiful build! I will definitely look back to this the day I build something similar, but it's going to have some storage space in there
Love it! I made a cyclone cart for my shop-vac, and it works great for everything but sawdust. What a pain to clean and change filters. Even if the dust is heavier than your boy's vape smoke...I'll figure it out, lol. I don't know why this isn't more popular for woodworking? Enough people build air purifiers, but not downdrafts??
Great idea! I'll have to make a mini version of this for a small garage.
Thanks for the idea!
Nice work Justin! just like the way you build things cheers
Now you have built it you can use it as a head porting flow table and test the flow of each port in a cylinder head . A simple hand held air flow meter will work with a bit of grease to seal the head to the table .
Very clean and professional looking - Nice! Cost you 500 Cost me at least 1000 if I have a shop do all the plasma and brake work (If I dont have a cnc plasma table or long enough brake). But, the Concept is definitely replicable for most of us If we dont require something that looks like it jumped off the Catalog Page like this baby😆 I'm Jealous of how Seriously Clean this turned out. I love how surprised and pleased you are with yourself and that you didn't just Already Know you could Pull It Off. It's like you haven't watched yourself so much in the way we watch you work. -We already know its gonna be good stuff brother- Thanks for the video and great concept to follow for my own table.
Great channel! I really appreciate the lack of crass and crude language!
My favorite fab channel! Keep up the good work, we're very grateful, thanks!
One... Two... Three... Four... Five.
Great video / table. Especially like the graphic on the front.
I would plug some holes, to increase increase the vacuum. Nice and neat build. Cheers
That was a slick project. I like the homage to Space Balls.
Love the diy stuff. Thank you for the ideas and demonss. This is awesome. Also, great use of the Schwartz
Mine is a combo unit - plasma, grind, and saw cut, and its much more simple.. no dust trays (shop vac it out in under a minute), no folded edge sheet metal.. just a sealed box with fans and a little sheet metal deflecting inside above the fans, the top is replaceable 1x 1/16" slats on edge at 1" intervals.
The extra width is for my Evolution saw because it always makes a helluva mess, this will catch most of it.
Jason, I see a new video, I press like! Great video as always. Air quality is important to those of us that work around fumes everyday.
Awesome,the small tabs that holds the filter is just cool simple and functional,👍
Excellent concept and problem solving!!! Worth considering: The fans really need to be industrial units that can handle the load when pulling against back pressure caused by a dirty filter and/or large objects blocking the ports. As it is the overlap between the rubber pad and the lower holes has already somewhat impeded the flow. Sure the fans will work but they will also eventually give up. Plus, unless your filters are capable of keeping minute metallic (aka conductive) particles from making it inside the motor assemblies (standard house fans have zero protection against such things) , a short circuit and/or arcing could occur leading to damage or even worse, a fire. Motors/fans designed for these applications are more expensive because they are designed for years of service under heavy loads and nasty materials. Down the road, I see another video where you eventually build adapter plates to mount the new industrial units. Love the Spaceballs reference!
I'm thinking of building something like this for grinding but also flux core welding. I'm tired of hot boxing the garage every time I'm working on a project lol even if the filters only filter half of the fumes I think it'll be well worth it
Awesome build, I’m inspired. I wounder if the filter was pulled away from the fan a few inches it would allow for a better pull of air kind of like down pipes going onto a carburetor helps with velocity. Looks like it works nicely as is. Thank you for your channel.
We need a CAD program that can read and see the design in my head....
Check back in 20 years or so.
I see hippies nesting in the filter - waiting for the big smoke! 🤢
Nice work, Justin! 👍
24:31 You should go back with a nut and bolt and eliminate the cutting hazard. It's really the only thing in your process that I'd change. Nice build and thanks for the inspiration!
Great DIY, and definitely something I need to build for the new 'grinding room' I'm adding to my shop.
As I mentally ran through what I already had to build one, I remembered the squirrel cage fan and motor I just saw this morning as I was digging through my plumbing inventory, looking for what I needed to get water flowing again, (burst pipe this past Winter has morphed into re-plumbing my house.)
I scavenged the 12-14" diameter squirrel cage fan from an old, old commercial refrigerator unit, (the one's grocery stores are throwing out). For an application like this, they will work great because the motor is not in the air path. The only downside to using a box fan is the grit will flow right past the motor of the box fan, and it will not live long.
Old commercial squirrel cage fans have greaseable bushings for the fan, so keep it full of grease, and no harm should come to it, as long as you duct it well enough to keep the grit on the fan side of the assy.
Hope this helps someone..
GeoD
Sounds like good info to me.
I'll keep an eye out for a couple of those.
About the tenth time I've watched this,going to make a smaller version for my little shop.
Amazing build! A true craftsman.
Caution, those exposed fan motors will likely fail due to fine particle grit carry over that will occur around & through the filter. Those cheap residential fans just don't hold up in that environment.
Also, without a spark guard on the inlet to the filter, expect to see some melting or burning of the filter element.
Ask me how I know...Been there, done that.
This is a cool project and dude, its sooo clean!!!
I'm telling you; you're the guy that people aspire to be like! I'm not a professional welder/fabricator, but you seriously motivate me to do better
Totally build something similar to this but use onlt a 90amp harbor freight wire feed , grinder and or chop saw . But very cool build
Nice job as always ! I am picturing a chop saw table with fans 😃
Maybe could have put some foam seal in at places to increase the air flow, but nicely done. I have a wood work bench that is very close to that size that I'm now wondering if I can adapt tops to do this..
Hi can this be used for welding fumes as well????
Nice idea. If I decide to build one I was thinking bbq grills for the work surface. Your right about the fans amazingly effective!
So cool Justin! Thanks for the ideas. I need to build something now
Very nice table. Mine's not nearly as fancy but works awesome. I have an iron grate for a work surface and a squirrel cage blower from an old furnace.
Great video, I like the enthusiasm making things better as you go. That's how I am I get all excited with a plan in my head and making it better as I go. Real neat project!
Nice project! I can suggest one very small addition to increase the air flow and reduce the sound level a bit more. Add cylindrical sheet metal shrouds around the fans attached to the flat sheet metal just inside the fans to reduce back flow around the fans. Also, I am surprised since you have that fancy laser cutter that you didn't cut a nice looking grill in the flat sheet metal outside of the fans instead of using the cheap plastic grills.
I would mount the fan motors outside of the table...either mount on the sides with chain or belt drives or on the back with shaft drives. Then duct the airflow outside of the shop.. That way I could also use it for projects that emit flammable gases
Hey Justin, that is a great looking, well functioning table!
I really like the look of the hidden fastenings on the front and side panels!
Your new shop is really coming together!
Keep up the good work!
Cheers Aaron