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DIY Shop Air Filter For Less Than $50
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- เผยแพร่เมื่อ 23 ม.ค. 2019
- A Friend gave me a squirrel cage fan from an old furnace and I envisioned using it to power a shop air filter/air cleaner. So I dove into SketchUp and designed something that would hold the fan and three filters. The supplies to build it were less than $50 (since the fan was given to me for free).
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* SWANSONG by Josh Woodward - JoshWoodward.com
They will make you respect them. That's for damn sure. Never get complacent my friend. No matter how long you have been doing something .
Nice build! That zip tie on the wire trick is great
Thanks, Caleb. I appreciate you coming and watching. I love that ziptie trick. One of my favorites.
Thanks for making a great video! I have an old used Grizzly air cleaner, but I'm pretty sure yours moves way more air. @@DarinBeard
I had a bad kick back awhile back and I understand your pain, no broken bones , but a nasty cut, scar and severe bruising. It occurred while not using my riving knife, now I always use it, I suggest using one on your table saw, I enjoyed your video, time to build mine. Thank you
Looks like it works great! Good idea with the zip ties so it won’t pull through the hole.
Thanks, Bruce.
I can relate to being a little nervous after a kick-back accident. I went about 8 months without using the table saw.
My heart rate was certainly up the first couple of cuts.
I just found the table saw blade that bit my finger for the very first time, while I was cleaning my garage up today! I was looking at it for a few minutes while remembering that whole incident. I'm going to hang it on the wall over my work bench like a piece of art haha.
Thanks for the video, I'm picking up my furnace fan from a friend today, looking forward to working on it this weekend. Ed
I'm blown away when I consider that a $300-500 air scrubber only moves about 150-300 CFM while a $200 Rigid squirrel cage can will move 1,625 CFM. Multiple filters will indeed reduce that number but running them in parallel will help mitigate that power loss. I think I just figured out my new dust extraction plan.
Very cool project. I need one of these. Maxcut looks amazing. I will have to check that out. Good work. I enjoyed watching. 👍
Thanks, Mitch. And there is a free version of MaxCut so easy to check out.
@@DarinBeard that's awesome. Thanks. I'm going to check it out.
Great job. I’m headed off to buy one of these blower/motors this afternoon .. i admire your design ! A job well done! I think i will do mine very similar to what you have done here.
If I had it to do over again I would allow for thicker filters (more filtration) and I might make it to hang so where the filters are might be a little different. But overall it works great and I've been happy with it. It is heavy.
I need to check out the drawing software, I have looked at it some, but haven't heard of mascut sounds like a fun way to sketch stuff up, I have been using a pencil and pad most of my life.
I use the same face straight guide as well. I have a squirrel fan in my attic, I have had it several years, I have used it as a fan a few times, but this may well be the ticket for some air in the shop as well as a filtering system. Nicely done my friend. That end result is pretty awesome, Good job my friend, thanks for sharing and have a blessed week.
Dale
Thank you. I love that filter. It makes really quick work of clearing the air in there. And it moves air when you need it, too. I have been in web development for a long time so doing stuff on the computer is my natural state. I tend to find things that work for what I want to do. Let me know how it goes.
Your table saw needs the riving knife reinstalled. It prevents most kickback events.
Yeah I've actually gotten a new saw since then that has better equipment
That’s a great idea and it seems to work very well! Great video.
Thanks!
good vid, yea the kick back on those things scares me also.
Wow great idea I need to figure out how to get the dimensions
Man if I had a kickback, I’d be adding a riving knife anti kickback pawls. I’ve never had it happen but I imagine it’s pretty sobering. Glad you’re okay!
I have a new saw now with a riving knife. Much safer.
Man, I didn't know I needed this until now. Great edits and design btw! New subscriber here. Keep the good stuff coming!
Thanks, man. I appreciate the kind words. I am really glad it was helpful. I'm about to build another one that is a little smaller. I had to leave that one in the rafters of the last shop. Setting up a new shop now.
Should have made the fan outlet about an 1" smaller all the way around (including the 4"? lip of metal) on that size fan.Those fans are made to push air,they'll work harder and overheat with no back pressure.
It's been working for over a year now and hasn't had any issues overheating. Info to consider for next time though. Thanks.
@@DarinBeard As far as you know it hasn't been..
But it may not if it don't really need to run more than 10 or so min at a time.
Great work. I enjoyed watching your video and has inspired me to build my own. Would you consider sharing your plans so I have a starting point? Thanks in advance.
I just moved so give me a day or two to dig up the SketchUp model if I can find it.
Quick and simple build. Looks like a good one to me. I'll build one using your design. Thanks for sharing!!!
Kickback....are you using the wrong blade for plywood? What happened to your kickback pawls & spreader on the saw?
Thank you for taking the time to let me know you liked it. Hope it works well for you.
Oh, and that saw never had any safety stuff. I have a new saw now that does.
That is next for me. Thanks for sharing. New sub.
Thanks, Michael. It is still working great for me. I might build it with room for thicker/more filters for better filtration if I were to do it again. Just a thought. Thanks for the support.
Great info here, loved it! Please get yourself a mouse... Will make everything so much easier! I was hurting watching you on that kinaptis pointing device or what ever they call those touchy things.
Ha! I do have a mouse. I was just in the shop with the laptop and needed a shot of the software but I didn't take the time to plug in the mouse just for the shot. Believe me I cannot stand to use that pad. In fact I use a trackball. Thanks.
@@DarinBeard thank god! That a kept me up at night, thinking about you drafting with that pointy hootchamahbob 😂
Great idea! I just might borrow this idea
Thanks! Send me pics if you do... I'd love to see it. I have the SketchUp file if you want it as a starting point. I'll share.
Darin Beard that would be awesome. Doss.burleson@gmail.com.
Once my flip top table is cleaned up I’ll share the pics with that one as well.
That would be cool. I sent you the SketchUp file.
Got it tyvm I’ll send u what I do soon
Where would I be able to find an old furnace blower like the one in your video?
All the ones I see online are “too nice/new”... and expensive 😬
I had two and both were given to me.
Great video. I’m getting ready to build one but not sure of location in garage. On the floor it takes up valuable real estate, but will it work if I hang it? I have a smaller squirrel cage, thoughts on building it into the ceiling joists vs hanging vs floor?
I did put that one up above the joists. It would also work hanging.
Wanna make one of these. However I wonder if the wind outlet will stirr dust and make it fly all over... Is that an issue actually or does it get sucked back into the filters as soon as it flies....? Thanks. Great video
Well, sort of. I pointed it in a way that created a flow around the shop.
Great video Darin. Also have a squirrel cage from my old hvac but planning on just shop fan use. Trying to figure out how to wire it up. Motor has black and white along with a red yellow and blue. Any suggestions on wiring to utilize high med and low setting? Thanks, CJ
Basically what I did was search for the model number and see what I could find. I am very much not an electrical expert. I ended up hoping and plugging it in. Probably not the best idea. But it worked. It's actually probably too strong for the filter but can clear the room in a matter of minutes. I found several posts around talking about fan motor wiring. I can't remember the specifics but you should be able to find it relatively easily.
I believe the red, yellow and blue are the speed adjustment wires for low medium high.
Thank you for the video. Going to make this for my garage. I have a question on Sketchup. How do you get your drawing from Sketchup over to Maxcut for the cut list. Struggling to find anything on this. Thanks again.
Chris
There is a plug-in for exporting the data. It is not maintained anymore as the author died but it still works. I don't remember the name off the top of my head but I will look and let you know.
Question about a previous video how difficult would it be to turn a cargo container into a faraday cage
You could use any sort of metal grid, chicken wire or screen or fencing and cover the container with it. Then ground that "cage" using a rod driven into the ground. That would do amazingly well. There is also an RF blocking paint that you could use but it is really pricey. Hope that gives you a starting point.
How are the filters held in place?
Nice pice of work. Kick back accident. One question: why don't you use a riving knife? Nearly each circular saw in Germany has one. It's much safer....
I didn't have one for that saw. I since have gotten rid of that saw and have one with a splitter on it.
Just a comment about the Squirrel Cage, call your HVAC guy he will probably give you one if you remove it from the air handler.
I see no scribing knife on your table saw
All these videos are beyond deceiving. Great work, but definitely NOT $50 if you consider the fan, filter, lumber costs. Just a good set of Merv 13 filters can be > $50.
In the video I say the fan was free, the filters were super cheap ones and not high quality at all. It literally cost me exactly what I said. So I didn't deceive anyone. Lumber costs more today than it did back then but still...
What size filters did you use?
I don't remember specifically. I basically designed a box that the fan would fit in and then looked at filter sizes and picked the closest one and then made sure the box would fit the filter. So it depends on your fan size.
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