J. Phil Thien's Projects

I am not sure exactly but are you referring to something like the one I created <a href="http://www.jpthien.com/smf/index.php?topic=90.0"></a>?

I routed a 1/2" round grove and applied silicone.

The puppy's name is Gucci. Wife's baby ... miniture dachshund  ::).
Looking at the overall footprint now, I believe is would fit nicely on the original cart for portability with much less height.

thought I would post the pictures of the modified outlet from the HF DC. I upsized the outlet from 5"to 6" and plumbed directly to the Wynn Environmental filter.
I was going to cut a hole and create a dust collection tray area on the bottom but figured that I will have to clean out the filter anyways in the future so it just goes directly into the filter. Sure made a difference in noticeable noise - much quieter.
In the pictures I showed how I formed the outlet with 6" PVC. Made a form out of some scrap wood and heated the PVC and worked it in. The pictures not mounted is from the first one I created. When gluing the PVC to the wood I thought a couple of small brads would help hold it. Not smart as it cracked the PVC. Glue used is wood glue for gluing melamine on the finished piece, works real good. The one pictured I used PVC glue which seems to be holding quite well.
I was able to mount the adapter using the existing rubber gasket from the original outlet.
So far, so good, will update after I use it for a while and see how it works.
Last picture is our new addition to the family  ;D

Alan,
I tried to go the 5" too but found it was real difficult to obtain except for the stuff you find a Home Depot and all that is a available is metal. Don't get me wrong, metal duct is good but I do not think it flows as well as PVC duct, in fact I think there is something mentioned somewhere about that. However, 6" PVC could be a problem obtaining too but do not use the heavy walled PVC but the thinner stuff sometimes referred to as Sewer and Drain or S & D (much cheaper but still not cheep). You might have to go to a plumbing supply to get it if you have one in your area. I made a inlet to the impeller housing to accommodate the 6" duct (you can see it in my post).
Believe me I have a bunch of 4" and 5" duct in my garage in the rafters I wish I never purchased. If I knew what I know now, I would of went 6" from the beginning and saved a boat load of money and frustration.
I will be making a new post soon as I am in the process of increasing the outlet size to 6" and modifying the filter. Been really busy working on the kitchen cabinets and such.

I have a version listed below in this forum with 6" duct and it works exceptionally well.
4" will work as others have done. All depends on your personal talents with metalworking, cost limitations, space and what you are trying to acheive. Having used 4" in my shop and now using 6", I will never go back to 4". Honestly there is no comparison in air flow.

RBOETTCHER,

I like what you have done so far. Looks great.
More pics as you get farther along....

I will be sure to add one to my mod. Had an overfill yesterday... what a pain to clean. Great idea!
Update - Well I did it .... See pics.
Noticed while sucking up some stuff that the stuff swirls in the can but more like dropping.
Robert did you notice anything like that? The swirling is in a downward spiral - ummm like a cyclone  ::)

Bob,

I took my HF DC which I believe is not near as strong as the Delta and am running 6" PVC duct.
The inlet to the DC had a Y with two 4" connector going into a 5".
I modified the 5" plate to 6" and I have had no problems with any collection of anything in the 6".
However I hardly ever run two 4" runs at the same time.
Usually one 4" and a 2 1/4 at most.
You can see my version of Phils baffle on this thread.
I just emptied it again and now I have to make one of Mr. Wong's window in the can. Yep it got overfilled.
The can was filled to the top. Had some overfill in the filter/bag area and if I want to modify that, I will make sure to update the can with a window for sure.
Good luck on your baffle. It will change your dust collection expectations.
Which Wynn filter did you get - the paper or the woven poly?
I got the paper but now wish I would of got the other.

Ray,
Way to go!  ;D
I think more should send a bit his way.

I updated the drawing to allow a larger inlet rectangle which was brought to my attention that the previous version resulted in a square inch reduction which could restrict airflow by CheapScotsman (thanks). Also with the ability to mount to blower directly to the top.
If installed in a frame of some type (have not come up with that yet) the blower assembly and the cyclone/baffle assembly would be stationary and mounted to the cart. If the assembly is off the cart high enough to drop the can down 1" or so underneath the assembly would allow for easy removal. The can can be shimmed from the bottom to held it in place (simple).
Working on the outlet filter assembly design.
I am open for idea's - anyone???

CheapScotsman,

If my last reply seemed condensing, please accept my apology.
It was not meant to be that way, but after reading it again I can see it did have a rather bad tone. I have been under the weather for a couple of weeks now but that is no excuse.
If you can improve on the design, I am all for it. Asking questions helps improve anything as well as enhance creation, if not why would we bother posting  ;D.
Thinking about this some more, a true cyclone will circle around the cylinder at least one or more times to cause a vortex allowing the material to separate from the air stream.
Phil's baffle allows the separation without really creating a vortex as the majority of the material is dumped in the can almost right after entering.
Just because a cyclone works does not make it the only way to create separation. I would really like to do some static pressure and CFM testing on this as well as the exact amount of separation. Was thinking about creating one out of Plexiglas like the clearvue to see how it separates and if modifications would improve the design. What do you think - anyone?

CheapScotsman,

He does not require a reduction which just looking at his site is 4" x 10" and requires a modified transition to 6" round. Yea I lost a few square inches but in the process created a better cyclone effect using the majority of the sidewall of the cylinder instead of running a round tube at it. I am also not using a 3 hp motor and 14" impeller. In another aspect the outlet from the impeller housing on the HF blower is only 5" so there is a loss there too. 
Would it make a difference - maybe, probably, then again I am really not sure. I have no way in which to measure the CFM and this was made pretty much off the cuff. What I do know is the separation is pretty good (much better than I expected to be honest) - actually it is great after looking at the filter and emptying the can 4 times now. The air flow blows away a trash can separator in which I had used before.
This is no cyclone in the true sense but it is pretty close, then again I do not have a cyclone to compare it to.
Also thinking about this, the amount of airflow to create a prefect cyclone action requires more airflow due to loss because of turbulence. This version I believe has much less loss of airflow do to the limited amount of travel in the cylinder. Then again, I am no engineer but hey it works...

CheapScotsman,

I used PVC due to that I had cut off the overlap end or expanded end to join two pieces of PVC of  a 10' length I purchased and and used it to increase the blower unit. You can use metal it was basically what I had on hand.
The 30 gal metal trash can has a 20" top diameter (at least the one I have).
The distance between the baffle and the top of the unit is adjustable - right now it is about 10 inches.
The reduction for the inlet is derived from reading Bill Pentz cyclone site. He recommends to go from round to a rectangular for better air flow and less turbulence. Highly suggest your read his web site for a better understanding on cyclones if you have not done so already. (Be warned it will scare you a bit).

I uploaded another version with some added dimensions you noted above.

I see no reason as why not ... more air flow the better (within reason).