Together we are Capturing Dust! (Just Huge if True) 

Hey Ruud, you did it! You made it on camera... nicely done! "...my brain is super excited" 😀 Thanks for the work you are doing here and for continuing to share your work. It's incredibly impressive!

Just a thought about the particle counter you mentioned. Dyson vacuums have these sensors built in, and have no doubt spent a lot of time and money in developing it. Would it be possible to hack or straight up incorporate one of their units into your separator design somehow I wonder?? Looking forward to hearing more about the design development of this project 😊 👍

Love channels like this, fun to watch and you actually can learn things. Good luck on your goal!

Looks amazing! Hooked on Wood has some really good videos on building a system that works well with the CamVac. Including upgrades, and a custom HEPA filter box

Hi Ruud, I'm also working on a Harvey gyro style separator but instead of using blades to spin the air it's just injected into the chamber at the desired angle (15*). With no blades to get clogged this removes the need for the additional separation stage making it simpler and more compact (maybe better performance?) Designing and modeling the ramped intake however was not simple...

Well Done. I am excited to see how your work progresses and hope to follow along and possibly make your design to test in my own shop as well. someday. Good luck.

I've given a lot of thought to these horizontal style dust separators and I have one issue I can't get past. If you suck up anything bigger than chips made by a table saw, planer, jointer, router, etc., you are very likely going to clog the separator. In a small workshop (I also currently work in a one car garage) I don't have the space for multiple dust collection/vacuum systems, so whatever I install (I don't currently have a dust collection setup) has to be a do it all, one and done system. The problem is in my shop, I suck up small blocks of wood, paper towels, hand plane shavings, etc. while I'm cleaning up. If anything like that is sucked up into that separator, it's just going to get stuck on the first turbine blade it comes in contact with. Thein baffles have a similar problem. Normal conical cyclones are 100% immune. If it can fit through your hose, it'll get separated out and end up in your dust bin. That aside, if you are going to do side by side tests of the different systems, can you also measure the CFM of your blower with and without the dust separator?

Great video! Thanks for sharing your know-how and cad files!!! Little idea to safe some money: Use 3mm rubber seal from a spool instead of the o-rings. You can cut them according to your needs and carefully glue the ends together using super glue. Saves quite a few bucks...

I just stumbled upon this and am immediately hooked. I'm exited to see where your channel goes.

Cool project, will be following

Nice start! Ik ga jouw uitleg volgen!

Lekker gewerkt Ruud

Ik ben nu al onder de indruk Ruud! Keep it up!

Random thought: fine water mist(s) prior to exhaust. You'll want to have an exit path that allows any water to condense or otherwise drop out prior to going back into the room, but it should catch all of the micro particulates. Can recirc the water, or use a sterile water filter if you really want.

Just ordered some of the clear and pvc pipe. Coincidentally I have 5 kilos of pla. Will give it a test asap

I sent my CAD model to pilsons guitars and my thoughts on improvement after his 1st or 2nd video. I am not sure how much he used. I can send my files to you as well.

Love what your doing. French cleat install is perfect for me. How to cut out the pipe? Thinking a jig might be needed. (3d printed of course). My usage is cnc.

hé Ruud, heel mooi ontwerp, ik kom al enkele weken of er nog aanpassingen zijn voor ik begin te printen 🙂 a very nice design Ruud, I have 2 questions. The Festool collection bins are not that large, is it possible to provide an output that goes to drums? The design does not have to be so compact, it can have some length, as long as the diameter still fits the printer. Personally I would make two of them, 1 high against the ceiling with the collection drums and the hose on a boom arm underneath for a sander, milling machine, etc. and 1 lower for the devices with larger chips.

Houdoe 😂 Always great to see other Brabanders here. Maybe you can contact Henk Maas (Veen) to lend you a calibrated scale?

Under Dunn also built a turbine style separator. Oh you cited him in the other video. Cool!

You should look at a SEN5x on an Arduino as a dust sensor. They're affordable enough that you could use several if you wanted and track ambient dust and differences between stages.

I downloaded and built pilsons guitars design and got it working this week, I'm really impressed with the design. I used your design for the bins that clamp in instead of hoses to them, and it works very well. My only issue I think is that my air pressure is still too high (I'd upgraded the motor on my dust extractor to a bigger stronger one), I think I might need another two seperators. I'm curious about the design changes you did to the original.

Bonjour, j'aimerais savoir exactement la différence dans vos fichiers entre les fichiers MK2 et MK2 EU? Merci Au passage, j'adore votre réalisation.

very nice i'd love to see it working. subscribed :)

Mooi! Ben erg benieuwd!

this guy is hooked on wood

I love your implementation of the festool "buckets" they are just insanely expensive for what they are, a clear bucket, I wonder if anyone has ideas for a cheap solution to replace it

Maybe some sort of electrostatic collection of the super fine particles?

I had a lot of trouble printing the mirrored impeller to get it smooth. It was due to the bambu printer default to print counter-clockwise causing issues with curling for the leading/overhang edge of the blade as it is printed first. Their slicer program does not allow you to change the direction of print. The solution was to use OrcaSlicer which does allow you to change the wall loop direction to clockwise.

On smaller particles, don't expect to get close to 100% just with the centrifugal separator. And here is a good video about particle filtering, HEPA or not HEPA, amount of clear air filters can supply, and why it might not matter that much, if you are continuously filtering the air in your workshop: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gaQTYrisieA.html It's a long video, but really full of useful information! Of course, for a workshop you will need a bigger filter than something sized for regular room use :)

I definitely want to know how your separator works when the camvac is on 1 motor

Maybe an electrostatic filter for the smallest particles? You deserve a large audience!

I'm watching with bated breath! I've seen and been intrigued by the the Under Dunn and Pilsonguitars videos on this subject. I'd like to share my thoughts on the location of the fan. Push vs Pull? I believe performance will be governed by pressure drop along the sytem? Pushing will cause high pressure at the start of the system that falls off through the system. Pulling will cause the opposite, low pressure at the output that rises through the system. This seems to amount to the same thing. However, it will only be the same thing if the pressure gradients through the system are identical. I feel that Pushing will cause a high gradient at the input and lower gradient at the output. Conversely, Pulling will cause a steep gradient at the output and lower gradient at the input. If this is true, ultra small particles that experience very little centrifugal force at the output of the centrifuge stage are more likely to get drawn down the steeper gradient of a Puller and end up in the hepa filter, whereas, the lower gradient of a pusher will give these particle more chance to find their way into the small particles bin. I hope this makes sense and any fluid dynamics experts out there- please, fire away

My friend, you are egregiously Dutch.

I just ordered the clear pipes and will start printing next week. I can do some tests for you with Dusttrak 8533 devices if you would like

A "stupid-simple" option would be to have a light-curtain "lichtgordijn", either with a lens or a mirror-based scanner, and have a photodetector observe for light "flashes". A green one should be able to detect particles of ~500nm diameter and larger. for smaller particles, you'd need violet/UV. 395nm "laser pointers" are available, as spinoffs from the blueray factories. How many residual particles do you expect? ..and what size?

I would be happy to participate in your testing by printing one and sending you my results. I’ve got a handful of 3d printers in the shop right now with nothing lined up to print.

I know I have made plenty of comments already, but could you measure the "loss" how much less airflow than without, and compared with the other methods, oneida cyclone, then baffle etc

Would be interested to see if materials other than PLA perform better, such as nylon.

Just wondering if it would be possible for you to upload the stl files for printing. Thank you

If your goal is to measure the micro particles, how precise do you want to get? Can you device a method to compare a shitty separator with a good one? My money would also be hacking the Dyson vacuum cleaner. Because I suspect they measure reflected light and they probably trained ai to distinguish small from big particles. Then they probably calibrated it using known concentrations and you get the benefit. However, for prototyping, you don't need an accurate quantity, but a reliable measurement in performance differentiation. If you colour your known particles, you could potentially simply look at where the colour went and how saturated it is. Ps. Loving the stone coal english especially combined with the dutch dry humour/nuchterheid (frietpan frank is another good example of this)

After watching the original video from Under Dunn two years ago I have built a smaller, low flow version from PVC and bristol paper. It was supposed to filter small particles and cement dust from grinding but ultimately had efficiency of a mere 70% with that particle size and I lost interest in the project. They are really hard to remove. I was trying to maximise the centrifugal force while keeping air velocity moderate to get them out of the stream but there seems to be very little data on how much force one actually needs for given velocity, size and material.

This is a really interesting project, touching an important subject for us hobby makers/small shop pro's. One aspect i think is to be clear about the vacuum generator that is driving the system. You are using a Camvac, others may need to consiser transferability to their vacuum. This guy makes some useful comments ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-KPU1Vi4XgJY.htmlsi=1wEcGWj8Rgzf48Kk

If you shoot a laser at a glass rod it creates a strip of light.. if you shine that through the air flow with talc powder you see slices of the air flow. Most CCD are 2x as sensitive to green so using a green laser's probably best you can average a long exposure of that slice with a sensor to get an idea of how much stuff is passing through. You can do it quickly if you tune it on a black background and count all the pixles with just the laser value of light in it with something like imagemagick. It won't detect micron/HEPPA particles well if at all (though if you have good optics and a large sensor maybe) but it'll give you an idea of particle count and let you test & visualize how the airflow is working all at the same time. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-TILjzuBGkRc.html shows how the laser stuff looks/works.

Can someone estimate how sensitive we will be for different CFMs (750 vs. 2000, for example)?

Are you willing to share the models?

ja houdoe heh

I could lend you a 0.3um 3-channel particle counter if you’d like.

Lekker steenkolen engels😅 Maar wel leuk project.

There's a typo in your thumbnail. It's either "I am" or "I'm", not "I'AM"

And sub ❤

When I used to measure engine exhaust gas particulates (prior to the days of Smart Samplers) we used to take a known proportion of the exhast gas and draw it through a filter (Watman GFA in those days). Prior to use the filter was weighed on a microbalance (Metler Toledo) and also after the test (there was some conditioining time involved too but tht was to deal with the unburnt hydrocarbon fraction, something that you don't need to worry about). You could use a simple orifice plate for the total flow and a gas meter on the sampler side to get the flows in the main air stream and the sample stream. Post test weighing would tell you the mass of particles collected and the two flow measurements would allow you to scale the sample mass to the total flow. If you want particle sizing that gets a lot more complicated (and expensive) but you could always stack filters of different sizes in the sample line and measure the individual mass collected on each filter. You also need to check where you take the sample from and be aware of any features that may create dead zones or act as edge filters leading to erroneous results.