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Thien Cyclone Separator Lid Discussion / Re: New build....Here we go....
« Last post by Rudy81 on June 20, 2017, 12:32:04 PM »
I am reviving this build thread to provide some data I just obtained using a Pyle anemometer.

I am reworking my shop and have been contemplating purchasing a commercial cyclone like a Dust Deputy XL or one of the builds from the gent in East Caroga. 

Before trashing my build, I thought I should see what kind of performance I am getting from my build.

I measured my 6" metal pipe at a blast gate that is 5 feet from the top hat inlet.  The gate has a diameter of 5.5" so I used an area calculation of 0.164 sq. ft.

Results were 3785 ft/min velocity and 640 CFM.

Considering my 1.5 hp JET DC motor is on the low end of dust collector setups, I was fairly impressed with the performance.

I plan on measuring the performance of the DC itself once I take the system apart to move it to a new location.  This should show me what kind of losses I am incurring in the top hat.

If anyone can see where I messed up the calculations, please let me know.  Also, if you have experience with a cyclone vs. the Thien baflle, I would be interested in your experience. 

At this point I'm not sure a cyclone would perform much better, but I have no way of knowing.  Seems data points are scarce for these builds and the cyclone with a Jet DC.
Looking for a supplier for the Rikon 60-200 other than Rikon for the impeller?  I thought I saw one but cannot find it now.
Thien Cyclone Separator Lid Discussion / Re: Another size question
« Last post by Yotter on June 08, 2017, 04:00:43 PM »
Wow! - thanks for the link - that post should be pinned it contains so much info - taken ages to read completely and now going away to look at redesigning my effort slightly - going to see if I can build a transition for my 110mm inlet pipe so it enters the chamber as a 150mm X 6.3mm upright rectangle which will reduce the capacity to induce turbulence in the incoming flow as it reduces the incoming orifice width dramatically.

thanks again - away to play with hot PVC
Where did you get the bellmouth?
Thien Cyclone Separator Lid Discussion / Re: Another size question
« Last post by retired2 on June 07, 2017, 06:05:56 PM »
You might find some answers here:
Thien Cyclone Separator Lid Discussion / Another size question
« Last post by Yotter on June 07, 2017, 07:23:41 AM »
About to build my first Thien Cyclone.  Because of space constraints it will be top hat type with an internal diameter of 450mm (17.7") and internal height of 170mm (6.7").  The inlet will be a standard (for UK) sewer pipe of 110mm (4.3") OD and outlet will be 127mm (5") straight up into a Harbour freight Type 2HP Blower.  I have various questions on which I'm sure the experts here can advise:
1. Is the direction of rotation important? - My thinking in this case is that as the blower above will be turning in an anticlockwise direction the the cyclone should be set up the same.  (I've seen both on YouTube etc.)
2. I assume (dangerous word) that my input pipe should be placed nearer the top of the cyclone with space below it - is this correct?
3. Assuming (there's that word again) that 2 is correct how far into the cyclone should the output pipe protrude?
4. The position of the baffle slot would appear to be critical - does where I have it in the attached diagram look correct - i.e. starting at approximately one o'clock position?

Thanks in anticipation - and thanks to Phil Thien for providing this excellent resource.

Robin aka Yotter
Thien Cyclone Separator Lid Discussion / Re: Introduce yourself...
« Last post by Yotter on June 06, 2017, 05:09:08 AM »
Just found this great resource - thanks for all the info.

woodworking for years but only got my shop together in the last couple of years - time for proper dust control . . . . . .

Do have a couple of questions - how do I get permission to post?
Doweling Jigs / Re: CAn I ask questions about the new jig here?
« Last post by phil (admin) on June 02, 2017, 03:22:41 PM »
I think we put $2.70 of postage for shipping USPS in the US.

Something like eight ounces.

I'll have my wife figure out how much to Canada, if it is only a buck or two more I can absorb that.
Doweling Jigs / Re: CAn I ask questions about the new jig here?
« Last post by bbain on June 02, 2017, 12:01:07 PM »
usps is the best way to ship to Canada, at least from our perspective.  Shipping with ups or fedex usually results in hideous brokerage fees (more than the cost of the item purchased)
 You may have to fill out some customs forms, but where it is such a low value item, you may get away without too much paperwork.
Doweling Jigs / Re: CAn I ask questions about the new jig here?
« Last post by phil (admin) on June 01, 2017, 08:08:40 AM »
I've just now updated the page again with how DIY templates work, so check that out.

For shipping I've been doing padded envelopes via USPS, is there a way to do that to Canada that doesn't add a bunch of shipping?
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