Review of the Dust Deputy Cyclone

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I recently reviewed the Dust Deputy DIY (Cyclone Only) and was very pleased with the results. For those of you (like me) with a small shop that relies on a shop-vac for saw dust clean-up and extraction this thing is a must.
http://www.garagewoodworks.com/Dust_Deputy.php
NO AFFILIATION YADA YADA YADA!! Just a very happy end-user.
Brian www.garagewoodworks.com
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GarageWoodworks wrote:

do you think would this work for micron or submicron particles? i've been looking for something like this for my sandblaster.
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On 01/15/2010 12:51 PM, charlie wrote:

I'm sure it would help. Exactly how much is tough to say.
ClearVue had what I consider a better design in their CV06, based on Bill Pentz's improvements to give better separation and reduced resistance.
However, Oneida took out a patent on the design and forced them to stop selling it (even though the design was public well before Oneida patented it). Anyways, they still sell the conversion lid, which is arguably the slickest solution for portable shopvac use though it does require a particular shopvac.
http://www.clearvuecyclones.com/Ridgid_Conversion.htm
Chris
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That would probably depend on the filter in the vacuum. Typically the cyclone type separators simply separate the large debris from the fine dust. The fine dust is usually captured by a different filter.
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Not accurate. I had some very fine saw dust in the bucket in my review. Almost no sawdust ended up in the shop vac or attached to the filter.
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GarageWoodworks wrote:

That's dependent on the definition of "fine". It's difficult to generate micron or submicron w/ a saw; even most sanding dust is larger than that.
The effectiveness of a cyclone separator depends on the mass of the particulate being great enough that its inertia will be too large for it (the particle) to follow the curvature of the air stream. Smaller/lighter means they will be entrained in the air flow and follow it rather than being separated.
--
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That depends on your definition/utilization of micron and submicron.
The width of a 4/4 board could be measured in microns.

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Not accurate. I had some very fine saw dust in the bucket in my review. Almost no sawdust ended up in the shop vac or attached to the filter.
Fine dust normally does not take up much space, it compacts well. Would'nt that be what you actually did find in your shop vac?
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On 1/15/2010 3:33 PM, Leon wrote:

That would seem to be a reasonable guess, but I've been using a pair of cyclone separators in series for almost eight years now - see
http://www.iedu.com/DeSoto/Misc/dustcoll.gif
for a photo - to collect dust from the CNC router with results that you might find surprising: the first barrel traps all of the coarse stuff, and the second barrel traps the /really/ fine stuff.
The surprising part is that the DC has _never_ been emptied and that there is more dust on the outside of the bags than inside...
...and the main reason for the dust on the outside of the bag is that I sometimes forget (but only for a very short while) to turn on the DC. :o)
--
Morris Dovey
DeSoto Solar
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I can certainly see how that probably works better... with 2 containers before the DC. I was referring more to how Brian pictures his set up. His shows 1 single main collection bucket and a shop vac. I would assume that what you find in your second bucket would be what Brian might find in his shop vac.
The syatem pictured here, http://www.oneida-air.com/gorilla_landing.php shows a main waste collection bucket and at the bottom of the pleted filter a smaller container to collect the fine dust that does not get caught by the cyclone.
Your set up would appear to be more closely described as a 3 stage vs. 2 stage collection system.

Actually, pretty much what I would have expected.

No doubt.

Yeah, LOL.... I noticed yesterday as I was cutting with my BS that there was dust flying out every where. Took me 3 seperate cuts brfore I decided to see what was going on. I came to the quick conclusion that the 20' hose running back to the DC probably should actually have been hooked up to the BS rather than simply laying on the floor 5 feet away. The DC was sucking its heart out and I was getting no pleasure, so to speak.
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I'm also sure it would help significantly. I'm tempted to try talcum powder to see how well it performs.
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Pretty cool... I have often wondered about these type portable units.
You mention that you used a 5 gal bucket and you could use have used a 10 gal bucket. I wonder if the size of the container really matters as long as it is at least 5 gal and is air tight. The reason I ask is that you mentioned the tendency for the unit to tip. If you attached a larger container to the unit it may not be so easily tipped. Additionally you might consider using a longer hose to get to where you need to go so that you could fasten the bucket down. I use a 20' flexible hose with my DC and that works very well, not having to move the DC, except to empty it.
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You can use a bucket/drum upto 10 gallons. I have a larger bucket that I intend to use, but I wanted to do the review using a bucket that most people would have access to. This thing is really cool and is very SOLID (thick plastic and heavy).
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You can use a bucket/drum upto 10 gallons. I have a larger bucket that I intend to use, but I wanted to do the review using a bucket that most people would have access to. This thing is really cool and is very SOLID (thick plastic and heavy).
Understood, but going beyond what the instructions called for, do you know of any reason that you could not use an air tight 20 gal container?
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wrote:

Is the dust dropped in or blown in? If it's blown in, wouldn't an air tight container interfere with the collection of the dust?
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On Jan 15, 4:41pm, snipped-for-privacy@teksavvy.com wrote:

It's dropped in. It spins around the cyclone and stays on the outside edge due to centripetal force. The air flow stays in the center moving in the opposite direction of dust flow (fall due to gravity).
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On Fri, 15 Jan 2010 13:48:38 -0800 (PST), GarageWoodworks

Ok thanks. I have exactly zero experience with a cyclone dust collector.
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wrote:

centrifugal NOT centripetal
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On 01/15/2010 03:51 PM, GarageWoodworks wrote:

Nah, you were right the first time.
Chris
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On Jan 15, 4:41pm, snipped-for-privacy@teksavvy.com wrote:

See this link for a better explanation: http://www.farrapc.com/products/cyclone/how-cyclone-works
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