Building a Blower (DIY dust collector part 2)

Thank you for watching!

Part 1, Building the Cyclone:

Part 3, Finishing the Dust Collector:

Thanks to Bill Pentz. His website provides useful info about dust collection:

I was also inspired by Marius Hornberger to do this build. Here are Playlists to his fantastic dust collector builds:

Patreon:

[BillPentz]

Hi this is Bill Pentz. Most of your cyclone and blower are evolved from my designs that I have been refining since 1994. You have done a pretty good job, but there are a few things that you need to consider for safety and ability of people with lesser metal and woodworking skills to be able to build your units. 1) the 1/4" plate is heavy but is the right stuff to use for your impeller base. 1/8" plate will warp all over unless you have a very fine welder and good heat sink. 2) Your noise levels at over 100 dB were not unexpected but can be greatly reduced with a few minor changes. a) You really do need to be using backward inclined blades. If you divide your blower into six equal pie shaped wedges, then you should offset your blades 2.5" from those division lines to create backward inclined blades. Backward inclined and your already backward curved blades make a huge difference in blower noise. b) You also need to sharpen your blower gore point instead of a gradual curved bend and add a second matching gore point on the inside outer portion of your blower to create a noise canceling effect. Sharpening gives you better performance and a level of noise that can be canceled. c) Also, I chose to weld on both sides of my impeller blades. If you just weld on one side, it should be the blade backs to reduce turbulence to also help with noise. 3) Your cyclone and mine are identical except I continue the cylinder up instead of just closing off with the air ramp. Many are poorly copying my design both ways now. The advantage of coming up is you save having to add a duct piece on the front of your blower and can just make a 9" diameter hole. You need that same sized duct coming out of your cyclone if you want optimum separation and airflow for an 18" diameter cyclone. 4) I found bolting the motor directly to the Baltic Birch plywood and using Loc-tite holds up for a while, but eventually vibrations cause the Baltic Birch to fail. I shifted over to using a steel motor mounting plate that I hold in place similar to how you hold your blower intake duct. 5) I found having my blower base and blades laser cut costs little and greatly minimized balancing. Also, I made my base have a tight fit to the compression bushing arbor which reduced runout and made for a smoother less wobbly impeller. 6) I also tried mounting the metal blower sides to the Baltic Birch. Turns out they will eventually develop openings from being banged hard by debris when you forget to empty your collection bin. A better technique is to make the blower larger in diameter, securing with carriage bolts outside of the metal which rests in 1/8" deep grooves in the Baltic Birch. 7) You can buy ducting flanges in the diameter you want that have a flared base and foam insulation making it far easier to install than the complex hole. 8) Many will want to make their cyclone and blower parts from galvanized steel. Galvanized reacts with silicone to break down and lose its seal. You might instead want to use a good gutter sealant. 9) you can take your identical sized blower vanes and move them out on the same sized base to create a larger overhang and 16" total diameter impeller. I found with these 4" tall blades, that is the ideal size to use your motor full capacity without risking burnout from moving too much air. 10) Please don't ever turn on a newly made impeller that is not encaged in a blower housing. One of my buddies started making impellers for me and he had bad welds. A blade broke loose and destroyed the blower housing plus the whole rest of the impeller before I could kill power!

[Muffinrando]

I know your struggles on the back side, it’s something I go through. glad to see you making progress and getting another build up. Take your time we will wait .

[caigner]

I said it once and I say it again: Continue like this and one day you'll score a job at NASA, building spacecrafts. Absolutely brilliant work.

[Rob-Hannon]

“We don’t know what 3phase is in the US” gave me a good chuckle. Good seeing you on camera again.

[josuelservin]

I love the the squiggly seal, efficient and good looking!

[TheHermeynator]

Always amazed at the carefulness and attention to detail you put in a project. Awesome video once again!

[MariusHornberger]

Great build. No doubt, a better blower than my one. I like the idea of bolting the housing to the motor and having the opening for installing the impeller on the bottom. Makes more sense now that I think about it. Do you want to install an inlet screen to protect the blower from large pieces?

[СашаБортнюк]

I'm from Ukraine, I've been watching your work for a long time, I want to thank you for the accuracy, honest attitude to work, I'm a teacher of labor, wood, metal, I'm older than you, but you teach me, THANK YOU!!!! SORRY FOR MY BAD ENGLISH.

[rubensalazar]

So good to have you back mate! Was super happy to see the jer notification

[woodsprout]

I like your thinking on the wiggly bits, and love when what looks like decoration is actually functional industrial design.

[Painless]

Can‘t wait to see the last video … it‘s always a joy to see you working … I like the way you find solutions for the process and the result is outstanding. Thx for sharing

[PERSONALEEMG]

Dude, thanks for showing us your process. Have a nice day.

[vintyprod]

So beautifully designed and executed. that thing’s a piece of art

[zendesigner]

great use of maths and geometry designing your parts. you're smart in finding solutions

[awesomearizona-dino]

Yes, the fine kreg screws are excellent for Not splitting. Great work Jer, as usual. Please send rain !!

[rebbel]

I get the same joyous feeling watching you(r videos) as I get watching Lionel Messi playing soccer!
For those not in the knowing; one of the best players ever to walk the pitch.

[dkbuilds]

Awesome to see you back Jer, and also awesome to see some build videos being successful on YouTube. The algorithm really beats them down these days. Keep up the awesome work, you're quickly turning into the next Matthias.

[tonysamples]

GLAD TO SEE YOU BACK TO BUILDING THINGS. I'V ALWAYS ENJOYED SEEING WHAT YOU COME UP WITH NEXT. KEEP IT UP.

[benjaminreinhardt]

Awesome work.

As far as butt welding sheet metal - you want to stack tacks. Tack every 2", then come back and put a tack on each tack. That will move your heat around and minimize distortion. Also prevents blowing holes in the the metal. Other than that, awesome work buddy. Leagues ahead of me.

[alans]

Your cyclone and blower look like they will last forever and work extremely well. They far outclass the ones I made.

You can take as much time as you like and I will always be happy to see a new video from you. This was not a long wait.