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  1. #16
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    May 2011
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    Albury
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    qwertyu, it's the thickness of the lid that's the problem. If orraloon was using a collection container lid as thick as the one pictured above to mount the cyclone on that was his problem too. One of these small cyclones is much more efficient than a chip collector so don't even bother with one of them. When I was selling these cyclones virtually all the problems buyers had were because of thick lids, unless they were doing something totally stupid of course. Any users who followed the instructions provided with the cyclone didn't have any problems.
    Forum members PM me for a discount on all my products - https://www.ebay.com.au/str/aldavsstore

  2. #17
    Join Date
    Dec 2005
    Location
    Huntington Beach, CA USA
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    77
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    1,755

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    There is a magic word, "Box". It is not very good aerodynamically.

    Here, before we went to the square dust bins for automated pick up and emptying, perviously we used metal trash cans, about 30 gallon or 130+ L. I purchased a plastic lid, intended to be a separator for the trash can. With the additional elbow to create a circular air flow inside the can the large saw chaff is trapped in the can and the wood flour is sent on to the bottom bag on the dust collector.

    Separator 1.jpg Separator 2.jpg

    The elbows on the top are for convenience rather than straight in and for easy connect/disconnect.

    The elbow inside the trash can creates a cyclonic flow of air. The heavy particles are thrown out to the sides while the flour dust remains suspended and is trapped in the bottom bag of the dust collector.

    The reason that I show these is to encourage you to build your own separator. All it takes is a piece of plywood cut to the size of the circular can and two holes drilled to accept the suction and suckee hoses. The suction hose should be closer to the center of the plywood and the suckee closer to the edge. The right angle inside the can is the critical part as it creates the cyclonic flow of air.

    I have mine set up with a contraption that allows the use of a plastic garbage bag to catch all the chaff. It is simple, it works and it follows all the laws of physics relating to air pressure.
    (Details upon request)
    Rich

    When SWMBO said "I won't cook in metric."
    The metric system died in the US.

  3. #18
    Join Date
    May 2011
    Location
    Albury
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    1,636

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    Rich, he already owns the cyclone. In his previous setup it was working fine. Why would he want to start from scratch and end up with something that doesn't perform as well as his previous setup? The performance of these small cyclones are far superior to any home made chip collector.
    Forum members PM me for a discount on all my products - https://www.ebay.com.au/str/aldavsstore

  4. #19
    Join Date
    Feb 2007
    Location
    blue mountains
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    4,018

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    aldav,
    Seeing as I have a small cyclone just laying around gathering dust(can't resist a pun)I may have to have another play around when time permits.
    Regards
    John

  5. #20
    Join Date
    May 2011
    Location
    Albury
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    You won't regret it John. Get yourself a ring lock paint drum and raid the rubbish bin at your local vacuum cleaner specialist for hoses.

    I sold about 1,000 of the first three models of these small cyclones in Australia, NZ, US, Canada and the UK. Of the very small number of problems reported to me by buyers a huge majority were because of poor fitment of the cyclone to the collection container, either an overlap of the lid and the discharge port or the use of thick container lids that disturbed the airflow around the discharge port. As Rich alluded to round containers are a better bet than square ones. Those installation problems may have been one of the reasons for the change in the discharge port to extend through the container lid in the later models.
    Forum members PM me for a discount on all my products - https://www.ebay.com.au/str/aldavsstore

  6. #21
    Join Date
    Oct 2008
    Location
    Leopold, Victoria
    Age
    61
    Posts
    3,325

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    I have one of David's cyclones fitted to an old Triton dust bucket and it works like a charm.
    I would think that the square collection container is what is causing the dust to end up in the vacuum as I think that the circular action of the air inside it would be upset by the sharp corners.

  7. #22
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    23,234

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    Quote Originally Posted by Treecycle View Post
    I have one of David's cyclones fitted to an old Triton dust bucket and it works like a charm.
    I would think that the square collection container is what is causing the dust to end up in the vacuum as I think that the circular action of the air inside it would be upset by the sharp corners.
    Unlike the cyclone itself there should be minimal rotational movement of any air inside the bin so the air speed can drop to as low as possible to enable the finer dust to fall out of suspension. If anything an non circular bin should be slightly better than a circular in.

  8. #23
    Join Date
    Feb 2007
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    blue mountains
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    Would I be on the right track if I got the router and cut a relief like a great big countersink in that hole. Other option is another lid in thin stock I guess.
    Regards
    John
    Attached Images Attached Images

  9. #24
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    May 2011
    Location
    Albury
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    Wow, that's thick isn't it! That looks like a late model Suning cyclone, the base of the cyclone is designed to pass through into the collection container. Is it possible to make the hole in the bottom piece say 50mm bigger diameter and then use a large radius roundover bit on the top piece the cyclone is mounted to? Or have you glued the two pieces together?

    If you used it as it stands now it would be interesting to see how well it worked. You could certainly add to the knowledge base of how and how not to mount these cyclones.
    Forum members PM me for a discount on all my products - https://www.ebay.com.au/str/aldavsstore

  10. #25
    Join Date
    Feb 2007
    Location
    blue mountains
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    Using it as is was way less efficient than the drum with the other lid arrangement and no cyclone. I was expecting more of a cyclone and felt a bit misled. I must admit that 10 plus years ago when I put that dust bucket together with good advice from this forum I was pretty happy with how it worked. I was looking to the cyclone to improve things but it looked like a backward step. Anyhow hope my negative result helps the collective learning curve. I am willing to have another go using the collective wisdom on here. I will post whatever findings come from this but it may be some time before I can get to it.
    Regards
    John

  11. #26
    Join Date
    Mar 2012
    Location
    South Australia
    Posts
    6

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    Where can these cyclones be obtained from. They look ideal for a project I have in mind

  12. #27
    Join Date
    Apr 2001
    Location
    Perth
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    Quote Originally Posted by aldav View Post
    You won't regret it John. Get yourself a ring lock paint drum and raid the rubbish bin at your local vacuum cleaner specialist for hoses.
    ..
    One on the vacuum cleaner ...



    .. and the other on the DC ...



    Regards from Perth

    Derek
    Visit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.

  13. #28
    Join Date
    Nov 2004
    Location
    Brisbane
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    1,067

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    Quote Originally Posted by alfclp View Post
    Where can these cyclones be obtained from. They look ideal for a project I have in mind
    There are heaps of sellers of the small cyclones on eBay. They all seem to be within a dollar of each other but up to $25. The Dust Deputy version of these is vastly more expensive.

  14. #29
    Join Date
    Apr 2001
    Location
    Perth
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    Mark, I have had both the Dust Deputy and my current small cyclone, the Dust Commander. There is nothing in it. The reason for changing is that the one I use is a carbon model, which is anti-static. The white ones available, like the DD, are not anti-static.

    Regards from Perth

    Derek
    Visit www.inthewoodshop.com for tutorials on constructing handtools, handtool reviews, and my trials and tribulations with furniture builds.

  15. #30
    Join Date
    Nov 2004
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    Brisbane
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    Quote Originally Posted by derekcohen View Post
    The white ones available, like the DD, are not anti-static.
    Hi Derek,

    Oh, good to know about the static. I would not have thought of that. Not something that is a big problem here in BNE cos low humidity means 80%!

    Where did you get the big bloke from? I've not seen those ones before.

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