Instructables


Keep your Lungs Healthy.

If you are involved in woodworking by now you know that every woodworking workshop no matter how small it is needs a dust collector.

Many say that the heart of a woodshop is the table saw, others say, it's their router table, band saw, planer... and so on.
Which ever it is, one thing is for sure, the lungs of every woodshop is the dust collector.

When you making chips most of them are heavy enough to fall on the floor, but when you have wood dust or other sort of it, that will fly in the air you breathe. These fine particles of wood can easily find their way into your lungs and are a serious health hazard.

Now there are many ways to protect your self like wearing a good dust mask (they don't come cheep but are good) or the inexpensive throw-away paper filters air respirators (not a very safe way to go, but is better than nothing).
Then you can have an air filter which is mounted on the ceiling to purify the shops air (the dust must first pass from your face before it reaches them, so these are good for after work), and finally you have the dust extractor systems which can be complex or simple (if you can afford one they are very good up to a point).

Regardless how good your dust extraction may be, there is still ambient dust that escapes from it, especially if you are sanding or routing you need something which is easy to use, portable, and powerful to suck the dust from your tools. Here is where a shop vacuum comes in handy.

The problem with shop vacuums is that if you connect them direct onto the tool it will suffer from dust clogging within 10 minutes, and also is not that easy to empty it so often, even if you push it to collect more it could burn out.
An alternative to this is to have an intermediate system between your tool and the vacuum, and this is the cyclone dust collector bucket.
The cyclone dust collector bucket will collect 99% of the dust and throw it into the bucket below, leaving your vacuum almost dust free and clean.

My cyclone dust collector bucket is very inexpensive and efficient. It only cost me under 20 euros (about 25 U.S. dollars), easy to build in a weekend, so here is how I build it.

 
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qz90902 months ago

I have a philosophical question that I would like to pose. I have seen many similar designs of this "cyclonic" dust collector and think there might be a better way to design this.

I believe the farther away the outtake is from the intake, the less dust there will be going into the shop vac. When the intake sends the particles out along the walls of the "cyclone", the particles need to pass fairly close to the outtake to fall into the lower bucket.

So, my question would be, why not feed the intake all the way down to the lower bucket? By doing this, the larger particles are already contained in the lower bucket.

Also, flip your cone upside down so that the dust particles can stick to the inside of the cone and not make it up to the outtake. (If you put some velcro or some other similar material on the inside of the cone, it would help in collecting the dust)

Additionally, shorten the outtake to the point that it is flush with the lid.

If a dust filter is required, it could be mounted on the top of the cone.

Does this makes sense? Any thoughts?

OK, guys, people are messaging me that they have difficulty getting a funnel big enough and are asking me where I got mine from... well in my country is easy to find one, but it seams that’s not the case in there’s.

So depending on the diameter of your bucket there’s another idea here, you could go on any car accessories shop and buy an emergency street/traffic cone (those white and orange striped cones), and cut it down to your diameter size and length (and they do come in various sizes)... that will work nicely too.

Good Luck
Steli
Traffic-Cone.jpg

Watch out for those wsquishy cones. I just built a cyclonic dust separator and the cone implodes when I turn on the vacuum. Get a rigid one!

In the design used here it's not very important if the cone is a bit soft because it's supported with a filler, but if it's not supported then you are right you need to purchase a rigid one. :)

katkon6 months ago

Μπράβο φίλε από τα ποιο ωραία πράγματα που είδα σε αυτό το site

Ευχαριστώ νάσαι καλά

georion6 months ago

WHAT standard metal buckets holding clamp that comes with it.????

The one I purchased its top comes with a metal ribbon clamp to hold it tight

gunsgt18636 months ago

Yet another source for the funnel, at least in the US, is a 12" funnel used in home brewing. Check home brew supply sites.

polerix1 year ago
now all i need is a box for wood carving with high speed rotary tool
dimmaz881 year ago
Hi Steli (and anyone else who could help),
I'm going to build one of these, however I was thinking of making it out of plywood. Basically two boxes stacked, would the square shape hinder the functionality? I'm still going to use a cone.

Thanks,
Scott
Hi Stelios, thanks for the input. I wanted to use ply just because I have plenty of scrap, and didn't want to buy those buckets. I 'borrowed' a traffic cone too :).
I've finished my version of a cyclonic dust buster, simple design really. Just a cuboid with two sections, the top one has the cone in obviously. The cone goes right to the top so the cyclone is maximized. I tried it out yesterday and it works a treat, I'm using a brand new vac, not a single spec of dust in it.

On the downside, it is quite heavy. However, I'm going to mount it on wheels so it's not much of an issue.

Thanks again,
Scott
Hi dimmaz88,
The reason that the top part is cylindrical is to give to the collected dust and chips the cyclonic action needed to drive them down through the funnel and into the bucket. Now, if you want to have a top box, with a cylinder insight and a cone, that's ok.
The lower bucket could be a plywood box if you like as long as the top cylinder locks safely on it. I believe that will be a much more complex build up without any advantage.

Regards
Stelios
zenbooter1 year ago
Hi Stelios. Once again in a matter of minutes I address you. Your Dust Collector is clearly well thought out,the employment of the metal paint can with it's clamping band is the real clincher.I will also build this one.Thanks.Tom.
Whilst building my rooftop workshop I became worried about the amount of dust in the air.
I had a look at the dust extractors on here and picked this one as best suiting my needs. (I loved the silent dust sniper too but as I am inherently lazy I decided that whilst it is amazing, it was too much work for me).

Just finished it and gave it a test run - works perfectly. Mine differs slightly - based on the 2 buckets I could get my hands on. You will see it's massive - in fact it is probably too big, but I needed something and until I get round to finding a smaller cyclone part, it will do.

I used a massive funnel (Yep PVC) that my local hardware store had in stock (4euros) and had bought and fitted it yesterday - used hot glue and expanding foam filler (Hot glue - perfect, expanding foam - nightmare) . Last night I came online to see if I had missed anything in the design and saw all the comments about static build up and possible explosions. This made me slightly worried. However - my simple (and works well) solution was to strip a length of wire I had lying around. Drill a hole just above the funnel in the side of the barrel and feed the wire through the barrell, down the funnel into the bottom barrel. I hot glued it flat and there is no static build up.

I now look forward to cutting mdf with less risk to my lungs. Big thanks to Steliart for this 'ible.
Very well done "skirmishmonkey" and thank you for the photos.
I am expecting most people to do changes in their model and depending on the matterials you can get your hands on, but the basic idea is there and as we say in woodworking - What ever works for you... :)
Thanks for sharing with us.
I did something a bit different and it worked for me. I didn't bother with the funnel down the center.

I cut a bucket into thirds: The bottom, a 'ring' from the center, and the top - inclusive of the stability ridges. Inverting the 'ring' from the middle section and sliding it inside the top made it so the bottom wouldn't fall out when placed inside. Basically, this made the bucket a bit over 5 inches deep.

I cut the input port between the top's two ridges using the ridges to support the input adapter. The middle ring and the bottom were notched to match the hole through the top ring to allow for the input. A circular dust and debris notch was cut into the bottom for about 200° against the side wall about an inch wide. The bottom of the bucket seemed flimsy to me, so I left two spots intact without notching them.

I put the output port in the center of the lid as shown in this tutorial and extended it down to within about 2 inches from the bottom of the modified bucket.

I used 5 minute epoxy as my adhesive and hot melt glue sticks for filler around the gaps. I used caulking around the inside to ensure no dust nor debris would fill in the minor gaps.

You can use 2" ABS pipe from your DIY store (Home Depot, Lowes, etc) for the input and exhaust ports. 2" pipe couplers let me accept my 2.5 inch shop vac hose.

I didn't have the vacuum hose lying around and ended up buying an additional 12 section of shop vac hose online. (By the way, the $3 per foot price you pay through these stores was unbeatable by my search. I envy this author having his extra hose at his disposal!) That way, the shop vac can still function as a wet vac with all the original tools and hose and I can dry vac with the purchased extra hose.

Future plans call for me to make a second one for use with the work bench to collect the dust from the table and chop saw. I plan to 'plumb' in the work bench using 2" ABS rather than the pricey vacuum hose.

I will take pictures and make this tutorial easier to understand if there is enough interest...
Looking forward to see the pictures. Thanks for sharing :)
I'm interested.

I don't know if it is true or not but I hear it is pretty important to ground plastic pipe if you use it in a dust collection system. Maybe you can let us know.
True, but this applies more to a workshop dust collection system with long 5-6 inch plastic pipes and not so to the small vacuum cleaner system that uses flexible every day use household hoses and 1 foot piece of PVC pipe. Honestly I don't think you will have any problem in this case.
Even if the only hazard posed by static build up in dust collection systems is annoying shocks I still think it is worth taking some precautions to prevent it.
mmettipv pfred22 years ago
I agree with phred...........I installed a built-in house vac several years ago and the instructions stated that you had to run a ground wire from each vac wall port along the PVC (taped to the pipe at intervals) and ending up at a ground connection on the vac cannister,whcih was metal. I have to wonder what the static charge condition is in the pipe when the dust is moving through it. If you have ever thrown sawdust in a fire, you would realize the potential for fire inside the PVC when you have a flammable substance, air, draft and spark,,,,,,,,,,,,,better safe than sorry.
Thank you for your interesting comment, I would love very much to see some photos and an instructable on your idea. Let us know when you post this, I think many friends will like to also have a look. :)
Okay... but I should warn you that my pictures are even worse than my caulking!

I will try to get some taken for where I am now -- the first one is built and the second one is nearly completed -- and see if I can augment them with drawings.

Thanks for the interest!

Here is the link to the instructable and pictures:

http://www.instructables.com/id/Dust-and-Chip-Separator-for-Shop-Vac/

It's my first instructable and I struggled with the editing and posting. Any suggestions for the project or instructable improvements are welcome.

Thanks!
Oops pics didn't seem to have uploaded.
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This too is an Awesome instructable to make a dust Collector.. Say bye-bye to Brooms and Pans..
May i Add that if you can make simple holder attachments to the collector hose, so it can stay pointed at the chips being thrown off, it could collect it in Mid Air-Mid Flight, and make Post Operation Cleaning a lot more hassle free.
Thanks for the tip ;)... a good one
mpikas2 years ago
where did you get the funnel? that appears to be the hard part of building one of these
Home depo, gas stations, kitchenware shops
Paul King2 years ago
I've worked in the Coal Mines starting a week after I finished High School in 1975. Any preventive measures, while working around any type of air born particles, are a great PLUS. Working on a Surface Mine the dust is more harmful than working in a Under Ground Mine! This is a great piece of equipment.

Thank You Very Much ---- for this product -----

The Eagle
Thank you for visiting and comment
Stelios
djr67893 years ago
will this work if you vacuum up water?
and does the vacuum cleaner fill up with dust much ?
Never tried it with water.
The vacuum is almost dust free.

Thanks for visiting
also how long should the pipe in the middle be?
For starters, let it as long as deep is the top of your funnel (please see top diagram). If you see that some dust is collected into your vacuum you can cut it a bit shorter so it does not collect any dust.
Ive built the mini cyclone and about half the dust is going into the shop vac . if i cut the center tube any shorter it will be in line with the 90 degree angle. (the reason I screwed that up is that i installed my funnel too high, and before I realized I wasn't supposed to finish that step yet, is there anything I can do short of moving the funnel?)
iNate2 years ago
Dose it matter weather you hook the vac up th the center pipe or the other pipe
Yes it does :)
saintOlav3 years ago
Thank you so much for this instructable. I will be building this over the next week. Any experience with static charges building up inside the collector? The metal bucket would be easy to connect to ground.

@1010tbone; you might want to try stores that sell lawnmowers and landscaping equipment. They usually have larger diameter funnels for filling (lawn)tractor gastanks.
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