J. Phil Thien's Projects

That one also says patent pending.

Huh.

Y'know...I just stumbled across this item on Amazon https://www.amazon.com/Delmar-Tools-Separator-Engineered-Peformance/dp/B09GYTSQRM/ref=sr_1_145_sspa?crid=3I33956TMREA8&keywords=drill%2Bpress%2Btable%2Bwith%2Bfence&qid=1648936879&sprefix=%22drill%2Bpress%2Btable%22%2Caps%2C407&sr=8-145-spons&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExUzZKTklZME5TRlNFJmVuY3J5cHRlZElkPUEwODUxMjYxU0hQMzJRN0JHMTBQJmVuY3J5cHRlZEFkSWQ9QTAyMjEzMjcxUElVTEVQUEJFWUMwJndpZGdldE5hbWU9c3BfYXRmX25leHQmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl&th=1 and thought again about this crap with Huntley.

It kinda looks like a rip-off of Huntley's rip-off of Thein (and this forum's population's) ideas.  I'm not sure whether or not it predates this site or Huntley's offense.

I take it nobody has sued or stopped the guy yet?

--Mik

Response to BigSteve
I modified my HF with the shaft vertical several years ago and it runs fine.

I put the machine back together yesterday, after re-cutting the baffle. The canister filter is delayed so I wanted to test it.

Compared to it with just the constrictor removed, it is quieter, and from a 'hand over the opening' test, it has more suction. I need to do some other work, so by the time the canister arrives, and I pull the top, I will have a good test on the separation and whether there is a build up on top of the baffle

First post--been reading like crazy. First project is to improve my old Delta that I inherited.

So far:

• Removed constrictor plate on intake
• Built baffle per instructions. I was able to use the groove rolled into the bottom edge of the separator by cutting two circles out of 5mm stock, one circle slightly larger, and laminating the two. Then cut the 240 degree drop slot. The DC is not quite round, so the slot narrows a little along one edge. but should be OK. By getting the 120 deg section into the groove, I was able to hold the baffle in place with a single edge mounted screw and finger bracket screwed through the separator side @ 180 degrees. (We'll see if this holds OK. Nice thing about doing it this way is that I can rotate the baffle for testing.
• In a longish thread Phil suggested that those of us with the 850 (because of the wide throat in the separator) might want to try adding a donut to constrict the opening:
  
  

  QuoteI am going to suggest that you guys w/ the 850's make an MDF donut with an I.D. of 8" and an O.D. suitable for mounting in the existing funnel.  Find some flat flashing/thin aluminum approx. 3" wide and wrap that around the I.D. of the donut so it extends approx. 1" below the bottom of the MDF (just staple in place).

  http://www.jpthien.com/smf/index.php?topic=178.msg1035#msg1035
  
  As luck would have it, I had some 8" round HVAC galv. pipe so I added that 3" piece to the inside of my bottom collar piece per Phil's suggestion.

I have a Donaldson P182038 on order for the top (this is the heavy duty version of the 181038) and the next step is to make a mounting collar for the top of the unit. (I'm annoyed with the folks I ordered from--day three and not shipped despite the claim that it was "in stock".)

So my question--does it make sense to continue the same 8" pipe directly into the bottom of the canister filter?

Since the OD of the filter (17.58") is smaller than the ID of the top of the separator (~19.5"), it will be inset from the top. Some people have done a base ring, and then a second narrow outside ring to constrain the canister. (or blocks to do the same).

What I imagined would be efficient would be to make the 8" hole in that top mounting ring, and then add an 8" HVAC take off ring (flange towards the filter, attached male connector extending down into the 8" pipe sticking up from the new collar. So the center pipe would be continuous 8" to the bottom of the filer (filter has 11" ID).

Filter would seal against the top ring, and the dust would move directly from the top of the Thien baffle to the filter, and bypass the angle pan part of the separator.

Or does magic happen in the separator to catch more of the dust and I should leave the pipe open ended at the top (1" below--3/4" ply donut, so about 1 1/4" sticking up), and cut my mounting ring with the OD to fit the top of the separator, and the ID to match the inside of the filter?

I did this so I could remove the filter without the need to remove the bag and separator.

Well, FWIW, the baffle that I took out of the 55 gallon separator can no longer work there. I cut it down to fit the ring on the HF DC.

Looking at the inside of the PSI unit you attached pics of it looks like it has / had some sort of spiral ramp (?) instead of a cone below the filter. Looks like you cut it out in favor of the wooden ceiling / tube arrangement.

MY intended LONG TERM application is going to be a 5' main with drops to my exisitng 4" blast gates instead of splitting to 2 4" mains. I am thinking about using a 5" blast gate to block off the run of the main that goes to the end of the shop, OR the run that goes overhead so I can basically reduce the volume being pulled against.

The mounting holes for the baffle need to be figured out. Pretty sure I can't use the ones I had originally in the drum baffle as they are too close together. Planning on filling the holes with putty and sanding smooth. Attachment will be 1/4 - 20 threaded rod, washers, and nuts / nylock nuts arrangement. Need to figure out how to orient the baffle with the neutral vane. I am going to assume the start of the full width is just before the opening of the neutral vane where it dumps so that the air / dust rides along the wide part enough before it drops in to the drop slot.

Also, drop slot was made 1.5" wide. should it be wider since this is in a dust collector arrangement and not a shop vac?

Quote from: dbhost on January 01, 2022, 07:29:31 PM
I am unsure about that Penn State unit you measured against though, does it lack any sort of cone, or inside anything in the ring?

It has no cone.  It came with a ramp that pushed incoming air downwards, but I removed it when the baffle was installed.  The chimney was added because there was no cone.  Note the increase in airflow when the chimney diameter increased from 6 to 8 inches.  A 12 in. chimney would be less restrictive.

Quote from: dbhost on January 01, 2022, 07:29:31 PM
I might just have to soucre up 10' of 5" and see if I can't measure pre and post baffle airflow with the cone. I REALY want to know...

I don't think a measurement made at the impeller intake is meaningful since that is not how the unit will be used.  If you are using 4" flex hose to your tools, the tool end of the hose is where you should measure the airflow.  If you attach the 4 in. hose to a reducer (increaser) with perhaps a short length of 6" duct, the airflow will remain the same but the velocity will drop, perhaps low enough that you can measure it with your instrument.  The instrument will partially block the duct end, so the measurement won't be very accurate but it will allow you to compare different measurements as you change your system. 
Skip the 10' of 5" duct because your measurements can't be compared to those I made with a pitot tube.

Last photo shows 1.5 HP Penn State DC at left and the HF DC at right with the stock impeller.  After testing the airflow, I returned the HF unit.  The center DC is the 2 HP Grizzly unit I used for my tests last year http://www.jpthien.com/smf/index.php?topic=1426.0

Reviewing your numbers, and the hit you took on airflow, is not all that reassuring. Unfortunately my anemometer doesn't read fast enough air speed to be useful for anything at the impeller on the DC.  I do know that a 30% drop after 10' of 5" ducting however is substantial enough to give me pause.

HOWEVER, I looked at how yours was set up, and yes the, ceiling or whatever you called it, with the 6 or 8" neck would likely serve to provide a restriction.

I know the neutral vane puts everything in the ring under the cone, and forces it to spin around the outside of the ring, kind of a weird sound with shavings actually, I know the opening in the ring is something like 12", maybe a little less,..

I do expect SOME restriction due to the baffle as it is a baffle after all, but I am not expecting to see a LOT of restriction...

I am unsure about that Penn State unit you measured against though, does it lack any sort of cone, or inside anything in the ring? That would explain a LOT of the restriction right there...

I might just have to soucre up 10' of 5" and see if I can't measure pre and post baffle airflow with the cone. I REALY want to know...

Quote from: dbhost on November 15, 2021, 06:41:45 AM
I am trying to improve airflow in my DC and condense my workshop as I am going to move from my garage workshop that is 18x20, and into a shed workshop that is 12x16, I need to downsize!

My current rig is an older HF 2HP DC with a Wynn 35A, and I go out of the DC via a 5" hose to a 55 gallon blue poly drum separator with a side inlet.

I want to remove the poly drum.

So plan at this point...

#1. Upgrade the pitiful stock HF impeller with a Wen impeller. Already on order.
#2. Build separator for mounting in the ring of the DC.
#3. Move my 5" connection direct to the DC bypassing the drum entirely.

This begs the one BIG question. How do I mount both the separator, AND the 35A filter?

I am assuming the 35a more or less has the one method of the turnbuckles to mount, so that leaves how to mount the separator.

So if you have done this, could I bother you to chime in and post some ideas for mounting? I am thinking about screws through the ring into the separator, and one or two threaded bars to stand off the "loose end"

I couldn't find a photo of your old setup, but 55 gallons is pretty big all by itself, so getting rid of that will be a good start.
I have been using a baffle inside the ring of my single stage dust collector for 8 - 9 years now.  I always intended to make a tophat but never got around to it.  I collect sawdust with a plastic bag under the ring.

I made some fairly accurate measurements of my baffle-in-ring setup back in 2013 or so that you may find helpful:
http://www.jpthien.com/smf/index.php?topic=1109.msg6089#msg6089
My ring had a spiral ramp, which I removed, so I installed a plywood ceiling and chimney.  The net effect was I built a top hat using the ring.
The HF ring has a collar above the inlet, so you don't need a ceiling.

The Wynn filter website has photos of different dust collector installations that you may find helpful as well.