TFS: Cheap DIY Downdraft Grinding Table
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- เผยแพร่เมื่อ 21 ส.ค. 2024
- This is definitely one of those tools that made me feel stupid for not building or buying years and years ago. It's so nice inside the shop now with no dust and junk all over the floor and I feel ten times better at the end of the day. You should seriously consider it.
Special thanks to ZTFab for the awesome grinder rack! Check out www.all-a-cart... for more great shop storage and welding cart solutions!
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Is your shop still up? This link isn't working for me.
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::
“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
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.
Snowflakes..
@@dontblameme6328 Twat...
Your making up for it with long conversation here
@@FOOKTH-camNUMBERS
Thank you.
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.
“1, 2, 3, 4, 5?! That’s the same combination I have on my luggage! “
Love the references. This was epic.
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 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 ...
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 👌🏻
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
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.
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
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.
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.
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
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
The table had a lovely sound as well. Could listen to it all day.
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!).
One key Bonus is this could be left on in a small shop to scrub your air. Great 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 😂😂
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.
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.
Your surrounded by air holes🕳 while using that table. Nice work!
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.
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
This is my favorite thing I’ve seen built on the channel.
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!
It's hard to beat great suction, nice build pal.
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!!
This is great idea. In a workshop that does this all the time this is an important piece.
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.
Cool table! 6:23 Everything is so organized and clean, then there's that hanging electric cover..
Time to change that combination lock on my luggage... fantastic job there and it’s going in my list of things to make.
I am in awe at the quality of your work and bench. Hats off to you.
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
That table is Sick AF. And the added bonus of Spaceballs references made it fun to watch.
I like your excitement at 16:00. This is the kinda stuff that keeps me motivated!
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
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. 👍😁
slick! I built a table using a 55 gal drum and a blower motor before I saw this great box fan idea
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.
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.
About the tenth time I've watched this,going to make a smaller version for my little shop.
Came to learn about welding, stayed for the space balls references!
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 love the staying "There's no tight or wrong way"... thanks for another awesome video 👍👍
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.
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.
A fan is a fan it's all about its static presure your table clearly has great suction. Top job my man
Love the SpaceBalls references buddy hahaha well done!
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
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 .
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!
Love the Space Balls reference.
I dig that you cross-broke those side panels. They stiffen the panel, for those who didn’t catch that.
great job, this is going to be a great upgrade to many home shops, thanks for taking the time to make the video!
Finally a useful application of a vape cloud!
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!
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.
I always grind outside with hearing protection and a 30” pedestal fan blowing the grinding dust away from me. I don’t miss the grinding wheel dust and metal smell/taste on myself or in my lungs. Grind on people!!
Love the space balls references
Just watched the follow-up video and goodness I never expected it to work that well. Coming back to study😂
I love it. All the fancy tools, and you cut tubing on the floor. Next project; cutting table :-) (it will save your back and knees)
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.
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
Lol the air shield code is 1,2,3,4,5 🤣😂 all hail lord helmet,but seriously awesome video 👍 I will be trying this ,thanks man
Space Balls 😂
That's the same combo I have on my luggage.
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.
Love the Spaceballs references
Watching you crawl around on the ground when cutting and welding, I'd be building a drop saw table and a welding table before I would worry about a grinding table. Working on the floor is for noobs.
Uses a chop saw, on the floor, sans the p100 to make a grinding, downdraft
--priceless dry comedy.
Love all the Spaceballs references! Haha. Great build!
Nice work Justin!
Thanks Jimbo!
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
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.
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.
I see hippies nesting in the filter - waiting for the big smoke! 🤢
Nice work, Justin! 👍
My favorite fab channel! Keep up the good work, we're very grateful, thanks!
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.
Automatically Liked and Subscribed with the Spaceballs movie references
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 Spaceballs reference got you a sub. Awesome vid 😎
👍 thumbs up for the Spaceballs reference!
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
You should fabricate it and sell it as a kit. I'd buy one. The epic music was a nice touch.
if you put those fans in a round duct you will increase those fans ability, turbulence at the tips of the blades cause drag there for they work harder and push a lot less air the closer you can close those gaps the better, as clean as it looks you could just fabricate four corners to make the round duct and just fit them in the fans current frame
Love the diy stuff. Thank you for the ideas and demonss. This is awesome. Also, great use of the Schwartz
I’m leaving a comment and like for the space balls reference alone 😂
Insane quickness
That was a slick project. I like the homage to Space Balls.
That grinding cable is bad ass
One... Two... Three... Four... Five.
Great video / table. Especially like the graphic on the front.
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 channel! I really appreciate the lack of crass and crude language!
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!
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.
Raspberry. There's only 1 man who would DARE give me the raspberry. LONE STAR!