The reason you got a lot of blowby in that cyclone is twofold: The cyclone is likely too small for the flow of that shop vac. A cyclone requires a huge drop in air velocity for the dust to fall out. If the flow is too high then the velocity is too high and it won't fall out properly. There needs to be some distance between the blower inlet and the cyclone. This is a little more technical, but basically the velocity at the blower inlet is much higher at certain points in the pipe cross section than other parts. The high velocity sections carry dust, then the dust clogs, then the high velocity section moves, more dust clogs, etc. Eventually the whole inlet is clogged. Adding about 5 pipe diameters of length allows the flow to "develop" and be more uniform when it exits the cyclone. I know what you're thinking: "why should I trust this random handsome guy in the comments section?" Well, I'm an HVAC engineer that specializes in industrial ventilation, so I've done this once or twice.
@@groundzero_-lm4md I do not have a formula for sizing cyclones. It would depend on the nuances of the design per the manufacturer. Manufacturers will publish an airflow range for their cyclone, so you need to ensure your flow is in that range. Generally, do not exceed 2/3 or 3/4 the listed capacity of a cyclone because manufacturers tend to overpromise.
Robert: "I'm making an overly fancy dust collector cart" Also Robert: "My small dust collector cart. Nothing fancy" (14:44) Looks good with the glass panels and walnut trim. Excellent video :)
The non-linear editing on this is fantastic! I haven't seen a video do this in the woodworking scene in some time. I think when you aren't showing details/how-tos on something, and just the process/progress of a project, this is an excellent format. I do prefer how-tos and insights into process and order of operations, though you just shifted from woodworking focus to problem solving focus, which I can also appreciate. Well done. Love the humor in this channel, and the constant upgrades in quality have been noticed!
Absolutely brilliantly written and edited, seriously, letting us watch you build the newest one while telling us about the past trial and error was absolutely perfect. Perfect.
I wonder if he is going to post his fingers getting routed off. When a table saw chops off your fingers, sometimes they can sew them back on, but with limited usefully for the rest of your life, but a router makes hamburger meat of your fingers and you spend your life with nubs if you are lucky and don't have nerve damage which can lead to never ending pain.
I absolutely love how you incorporated two pieces of glass into your build. An easier option would have been acrylic, but that would get scratched to oblivion with time, this won't. Genius
I like the way you explained your thought process on solving a problem, and you're not alone, I thought the same thing of "eliminating the middle man" however I'm glad I didn't attempt to make it myself... you made me realize that it's more complicated than doing the obvious... still not sure _why_ it failed, maybe it has to do with the length of hose to the shop vac? Anyway very interesting, thank you for taking us along for your journey! If you need to make a dust bin for easy emptying, consider a plastic bin, you'd have to modify the front of the cart by making it a door that you can open and the bin can slide out, so if I build something similar I might go vertical to conserve shop space... hmmm... now you've got me thinking... and that's probably not a good thing. 😁🤪😜
Ohhh yesss. Blue while running normally changing to Red when full. (And therefore ready to be sucked clean with a bigger vac, which, when that gets full gets sucked clean by an even BIGGER vac made purely out of Bubinga and Purple heart. Why... because well... otherwise, "it's annoying" lol).
@@keithroberts7502 Good idea,, Progressively larger and larger shopvacs for all eternity.. Over the past several years in my *dust collectionless* shop I've had to scoop up probably a half ton of sawdust of various types with my high tech shovel and broom.. Enter the B&O railroad building a train spur to carry away the many shopvacs from years and years of....Well...you know..
Smart use of a flush trim router bit and some straight wood to clean up an uneven cut. I'll have to remember that. Go watch the Stumpy Nubs video and make a table saw blade guard 😁
never use 90 degree bends, however, thanks a million for building something with a throw away vac! Few people repair or repurpose anything. Thank God this vac didnt end up in a landfill! Good job grasshopper
Very much enjoy your commentary throughout all off your videos, as they provide a great window into your thought process, including what didn’t and did work. I’m now inspired, here early in a Sunday morning, to complete my shopvac cart. Thank yiu!
While I don't intend to make a cart, your final design is similar to what i want to include in my bench, and this video has definitely helped me nail down some of the remaining thoughts I had kicking around. Thank you for making this!
I really love this channel. I think what is most enjoyable is the way you design-on-the-fly. I used to do that, and sometimes still do. Nothing more fun than spontaneous engineering. :)
I think you should take cue from Dr. Heinz Doofenshmirtz and add "inator" to the end of everything you build. Dust collector-inator with self destruct button
You may have watched too many “kids” cartoons. On another note. Perry the Platypus is an awesome secret agent because at first glance he just appears to be a lazy platypus.
Hahahaha. I loved your video. It kept me interested and watching all the way through!! Fantastic project and I really appreciated the way you told the story showing the construction of the project while telling the background story. Very eloquently told.
Hi Robert, I do enjoy your videos, you seem to have a good time doing your stuff. I actually did this before you and tried the cyclone and discarded it, put the pick up tube in the side creating a cyclone. While it works as well, the filter still gets clogged with very fine particles . Mine does not lookas pretty as yours . Keep doing what you do , I'm always happy to watch your videos. Really enjoy your style
I bought such a small cyclone from eBay it's about 10 $. Had it laying around for 2 years now and I'm about to finish my workshop. For what it is it's very efficient. Like you, I made a solution with a vacuum cleaner engine and the cyclone connected in series. The whole shebang is outside so I don't have to listen to the noise it makes. I made a box for my compressor and it's also the place for the dust collector. It works quite nicely. :)
Sweet. A lot like mine, but no need for the Dust Deputy. My Dustopper works great! And is way shorter the the over rated DD. It sits right on top of a 5 gallon bucket. The bottom is cut out to allow for a huge dust reservoir. Then it has a table top above the Dustopper & shop vac. It is all built into an old cart. The unit acts as a portable shop vac cart, assembly / feed-out table, and a rolling power strip. Looks rough, but works very well. :)
Have you considered making a drawer for the dust collection side? Maybe use the Baltic Birch and Walnut, like you did the cyclone top, for the front. Use baltic birch for the bottom and rear of the drawer and use clear plastic for the sides so you can still use your windows. Then you can use those knobs to seal it when it is closed. Just an idea, so you don't have to use another vacuum to empty it.
I have - it can be very effective. See +Garret Ducat ‘s reply to why it is a little more complicated than throwing kit together :) But the cascades work well if you size the hoses right - first bucket has 98% of the crap in it, the second bucket has fine powder in it and the vac filter lasts a looong time. But since I lacked the workshop and Dunn’s skills (and, frankly, stylish design eye) I got tired of balancing the stuff and went back to one bucket - and regular washing of vac filters :)
14:50 "Because nothing I make turns out nice" Dying laughing over here. Love your set of fails that everyone of us experience, just most youtubers don't publish. Great vids brother!
Awesome video! Love seeing all the iterations of, Tried this, nope, didn't work as expected.... Might want to grab some fleece cloth and make a filter cover or just but a filterpal bag to go over the filter to keep all of the fines out of your actual filter.
