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Thien Cyclone Separator Lid Discussion / Re: Introduce yourself...
« Last post by Rick walburn on August 14, 2017, 08:55:09 PM »
Hi ,I'm brand new here,and just wanted to give this information in case some are searching for parts for the separater. I used 6 inch as my woodmaster 3 hp allowed. Menards has the green grates that I cut the center out of,and screwed through it's base to connect. Mine is atop a brute trash can,44 gal. 10 inch lexan. It has no ledge in the chip opening,and vents straight outside. Next to zero is coming out of the exhaust. I put a rubber seal atop the trash can,and the weight of the seperater is all that holds it down. Extremely happy. Can't see how to post photos,but maybe this would help someone. Best wishes
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Thien Cyclone Separator Lid Discussion / Retired UK New Boy!!!
« Last post by Frithy74 on August 11, 2017, 04:05:39 PM »
Hi,
I'm from from over the pond so please allow for my eccentric dialog.
Been interested in woodworking all my life as my grandfather was a master cabinet maker when he was alive.
Sadly in the UK we struggle with cheap timber and a lack of good tools so any info available will help. :)
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Finally got round to getting pics of the new ''Thien'' separator and fine dust ''scrubber''.

Thien 2--shows  the separator with 50 litre collection drum  -
Thien 1- - shows the outside scrubber which captures the finest dust in a water mist spray which falls into a water tray.

 

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Hate to resurface such an old thread, but I found this very useful but had a few questions.

Did you ever remember where you found the spade connectors?  I have never seen any like that.  Also, where did you get the screw down wire terminals?  That is a nice clean touch.

Thanks!

The screw down wire terminals were cannabilized from one of my "fried" Long Rangers, so I have no idea where you could find those.  The spade connectors might have come from Amazon.  I'll check my orders and let you know.

Well, I didn't buy them from Amazon, so I have no clue where I found them in small quantities.  Do a search  on "piggyback spade connectors" and you will probably find them.  Or search "Thomas and Betts", a manufacturer.  Forget the big box stores, or even Radio Shack, they won't have them.
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Hate to resurface such an old thread, but I found this very useful but had a few questions.

Did you ever remember where you found the spade connectors?  I have never seen any like that.  Also, where did you get the screw down wire terminals?  That is a nice clean touch.

Thanks!

The screw down wire terminals were cannabilized from one of my "fried" Long Rangers, so I have no idea where you could find those.  The spade connectors might have come from Amazon.  I'll check my orders and let you know.
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Hate to resurface such an old thread, but I found this very useful but had a few questions.

Did you ever remember where you found the spade connectors?  I have never seen any like that.  Also, where did you get the screw down wire terminals?  That is a nice clean touch.

Thanks!
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Finally worked out the pictures thing, I just had to look   ::)
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Follow - up -

I was vacuuming the other night and noticed a sharp drop off in suction, so I checked the filter, and it was caked with fine dust. I would say that I had twice as much stuff in the bottom container of the shop vac as would have previously caused me to empty it and clean the filter. I'm not a math genius but I'd say I have reduced my filter cleaning by one half. And, cleaning the filter was easier than it used to be, because it was only fine dust, that easily shook out of the filter into a trash can.

So, there - not a miraculous improvement, but an improvement none the less. But the experience of building and using it, as well as the information on this forum that indicates that the double height top hat works better on fines has me considering building a double height unit when I build the big one for my dust collection system in a few months.
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Thanks. Seems that this dust collection issue is somewhat divided into chunks and powder. Our problem is collecting the powder in order to not circulate it back into the shop air while avoiding the inevitable clogging of a filter meant to filter this same fine powder! Somehow, most of the fine powder needs to be removed before reaching the ultra high performance HEPA.

I'm not trying to be flippant Jim, but the reason they make HEPA filters is because most other methods of separation don't work well very well on fine particles.

Centrifugal force and gravity are the primary reasons cyclones and separators work, and they are more effective with particle sizes that have some mass.  Unfortunately, you can't change the laws of physics.

I think the general consensus is that a narrower slot in the Thien baffle works better for finer particles, but you can't just keep turning that knob till the problem is solved.  I can't recall anyone trying a slot size much narrower than 3/4".  I'm sure if a very narrow slot were the answer, it would be common knowledge on this board by now.

One way to solve the problem is vent the offending machine ouside if that is possible.

Hi Jim--new to this site and am impressed with some of the ideas here especially Jim Thien's and also "Retired'' Don, so much information here.
I may be able to help you with your sanding dust problem, I make fishing lures (machine) and had the same problem as you (but probably not the volume you have).
If you go to this site, there is an old post, I posted it 20 Feb 2013 about half way down the page (under hazmail  -  ) 
Sorry--Link deleted, see below.
This basic principle should take care of any residual dust- I have used that set up for the past 4 years to catch ALL my dust, BUT have just gone to a "Thien Seperator'' with my same mister idea on the end to catch the residual, this now amounts to probably less than 5% of fine ''talc'' type dust in the water tank -Bliss
The problem with my old fan system was not the misters but the fan was not moving enough dust and had considerable back pressure problems so I went to Jim's separator idea with a few mods.
On making the separator- As has probably been said a 100 times here, if the primary collector drum is not COMPLETELY sealed you get bypass and outside air entering the drum creates a lot a higher pressure and turbulence in there, this just stirs up the already settled dust and out it goes through the exhaust. Thinking mine was sealed enough just with the weight of the fan was a big mistake, sealing the top rim gave me about another 20%- 30% in the drum. Also as Don suggests, I added a PVC ''horn'' (a $3 PVC floor register) and added vanes to the bin inlet and the exit into the turbine.
Hope this helps--If you need them, when I get some pics of the new setup I will post up.
Pete
Sorry can't post the link but here are some pictures:

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Thien Cyclone Separator Lid Discussion / Re: Square dust container
« Last post by phil (admin) on July 24, 2017, 07:28:44 AM »
Hey fellas. Piggy backing off this post.... I have a top hat over a home depot bucket and one over a square box that I built. I noticed the box will fill 3/4 full before dusts starts going to into the shop vac whereas the bucket fills about a third before it goes into the shopvac. I put a plexiglass window in both and I see more turbulence in the bucket where as the dust in the box is more settled. Is the box better in keeping the dust down? Your expert is appreciated

I'd start another post and add some pics of what you've got.

There shouldn't be any carry-over until the vessel is very nearly full.
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