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Thien Cyclone pre separator. Plastic 55 gallon drum.

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Project by dbhost posted 1811 days ago 10455 views 20 times favorited 13 comments Add to Favorites Watch

Not much to say about this one. I have had a Thien Cyclone Separator on a 20 gallon trash can for about a year now hooked up to my Ridgid Wet / Dry vac. I made this quick and simple.

Materials list.
3/16” tempered hardboard scrap from the shop.
1/4” all thread, 10” long, 3 pcs.
1/4 – 20 hex nuts, 24 pcs.
1/4” fender washers 12 pcs.
4” S&D street elbow.
pipe nipple of 4” S&D.
Hot melt glue

Tools used.
Drill and twist drill bits.
jig saw with fine scrolling blade.
oscillating sander.
wrenches.
Rasp
Hot glue gun.
Dremel and cut off wheel (I started with a 6’ piece of all thread).

This entire project took me an hour once I set my mind to it and did it.

I am listing this in jigs mostly because it is workshop stuff, not any other reason…

-- My workshop blog can be found at http://daves-workshop.blogspot.com





13 comments so far

View Karson's profile

Karson

34870 posts in 3033 days


#1 posted 1811 days ago

Cool modification.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware karson_morrison@bigfoot.com †

View Innovator's profile

Innovator

3584 posts in 2046 days


#2 posted 1811 days ago

Thanks for sharing db.

How does it work?

-- Whether You Think You Can or You Think You Can't, YOU ARE RIGHT!!!

View dbhost's profile

dbhost

5378 posts in 1864 days


#3 posted 1811 days ago

I sucked up 30 gallons of cedar shavings / sanding dust with it as a test. I could not see ANY indication of any dust, even fine dust making it to the DC, it all stayed in the separator. It actually appears to work better than my 20 gallon version that is hooked up to the shop vac.

I can give a fairer estimate of function after a couple of months of heavy use, but for now, it is looking good. I definately prefer having the TS, jointer, planer etc… running from the dust collector instead of the shop vac… I can definately notice that the air in the shop, and the equipment are MUCH cleaner this way….

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View a1Jim's profile

a1Jim

112015 posts in 2210 days


#4 posted 1810 days ago

Hey that thing sucks very well

-- http://artisticwoodstudio.com Custom furniture

View dbhost's profile

dbhost

5378 posts in 1864 days


#5 posted 1810 days ago

Ugh… I was wondering who was going to tell me this project sucked… I almost wondered if Phil was on here (Phil Thien the guy that came up with the baffle design)...

I am on the first full drum of sawdust, and just barely have a dusting in the bag of the DC. Less than 1/4 cup of material, and this is after knocking the filter down. (I don’t have a flapper, so I simply drum on the filter when I shut the DC down).

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View dbhost's profile

dbhost

5378 posts in 1864 days


#6 posted 1690 days ago

Not sure, I haven’t measured it, but the guy to talk to on those specifics would be Phil Thien. The designer / inventor of the baffle / separator. I CAN tell you from an unscientific measurement, adding the Thien AND the Wynn filter to my DC, it pulls a LOT harder than the stock DC… I am sure the Wynn had a lot to do with it, and I am relatively certain the Thien slows it down a hair, but the impact is negligible…

Phil is active on Sawmill Creek, and BT3Central (BT3Central user ID cgallery). I haven’t seen him here, but he is probably lurking…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View Jimi_C's profile

Jimi_C

506 posts in 1867 days


#7 posted 1690 days ago

kunk: I’d love to see those readings in addition to some taken through different kinds of tubing, such as flex and 4”/6” PVC (as well as how 22.5/45/90 turns affect it).

-- The difference between being defeated and admitting defeat is what makes all the difference in the world - Upton Sinclair, "The Jungle"

View dbhost's profile

dbhost

5378 posts in 1864 days


#8 posted 1690 days ago

I wish these forums didn’t change formatting on us so I could do some text columns and rows to show you side by side comparison. So bear with the choppiness here…

Dust Dog pros. #1. Designed specifically for exact machine fitment instead of “universal fit”. #2. Built in Beater paddle.

Dust Dog Cons. #1. 2 micron filtration rating. #2. Cost (they are more expensive than the Wynn from what I have seen.

Wynn Pros. #1. “Universal” fit, meaning it is a bit more adaptable to a wider range of machines. #2. Spun Bond poly 1 micron filtration, paper blend and nano fiber .5 micron filtration. #3. Excellent “dust release” in the spun bond element. (I simply gently tap the filter, and dust that got to the filter simply falls into the lower bag, no paddle needed.

Wynn Cons. #1. “Universal Fit”. Some machines require creative fitment to get the Wynn to go on. This can be a pain. Also the look of the filter doesn’t exactly line up with the lines of many machines. Aesthetically they aren’t real pretty… #2. Lack of beater paddle. A lot of folks like these, and use them a lot… (See my comments above about tapping the filter down…).

With the better filtration, which is what a canister is about anyway…. I chose the Wynn…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View dbhost's profile

dbhost

5378 posts in 1864 days


#9 posted 1690 days ago

Sounds like the priorities are in order. I am somewhat skeptical about air injection as I would think it would push generated dust away from the pickup point instead of driving it to the pickup point…

For now I am running 4”, but my long term goal is to run a main trunk of 6” to 4” drops…

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View bigike's profile

bigike

4031 posts in 1921 days


#10 posted 1188 days ago

where did you get the drum from? and does it come with the clamp?

-- Ike, Big Daddies Woodshop, http://www.icombadaniels@yahoo.com

View dbhost's profile

dbhost

5378 posts in 1864 days


#11 posted 1188 days ago

I got it from byte container in backing Texas

-- My workshop blog can be found at http://daves-workshop.blogspot.com

View splinter1000's profile

splinter1000

3 posts in 115 days


#12 posted 114 days ago

Hi Dave,

I was wondering if you could help me out. From reading various ones of the forum topics, I think you have experience with both the Thein baffle pre-separator and the Thein baffle in-the-DC ring designs. I have a small shop that I am setting up a dust collection system for. I’m not too concerned about the static pressure loss associated with the Thein pre-separator, but my biggest concern is the added space it requires. As such, I’m tending toward the in-the-DC ring version. I purchased a new filtration canister fro the DC. My question is as follows : is there a marked difference in how much dust will eventually make it to the canister between the Thein pre-separator and the in-the DC ring versions, or is any difference marginal? I would expect that the pre-separator would be better in this regard, but I don’t know by how much.

Thanks in advance for any assistance!

View dbhost's profile

dbhost

5378 posts in 1864 days


#13 posted 114 days ago

There really isn’t enough of a difference to matter. I went with the pre-separator for 2 reasons.

#1. Chunks hitting the impeller scared the tar out of me. Enough that I though it could potentially be a safety issue. It sounded very much like a small caliber handgun going off in my shop…

#2. The drum design is easier to empty / change than an integrated bag.

Having said that. I have given some serious thought to several design changes, and think the best, most space efficient design is the internal baffle. Second best / space efficient design is to “side flip” the impeller on a custom stand so that the impeller and separator ring connect directly, and the inlet of the impeller housing points straight down. Similar to what fellow Lumberjock Cory did… http://lumberjocks.com/projects/29578

I would put the stand part for the inlet / bag ring on a riser of sorts so that you could fit a Thien “Top Hat separator such as what Lumberjock revwarguy did in his project http://lumberjocks.com/projects/86954

That way you get the advantage of having an easily removable / empty dust bin, fewer bends, less flex line etc… in your setup, it takes up only a few more square inches of floor real estate compared to an unmodified dust collector,

This is in my long term project plan. I want to get rid of the 55 gallon drum and go with my 30 gallon steel trash can to save precious floor space anyway.

-- My workshop blog can be found at http://daves-workshop.blogspot.com

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