Building the Shop #17: Wynn filter delayed, 2.5HP TEMPEST Cyclone in the future

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Blog entry by Lance posted 11-28-2011 05:13 AM 4044 reads 0 times favorited 4 comments Add to Favorites Watch
« Part 16: Thanksgiving Weekend Part 17 of Building the Shop series Part 18: Christmas gifts arrive!! »

After finalizing the separator and attaching it to a couple machines I notice the lack of suction, especially on my router. The top 2 1/2” hose doesn’t pull in chips like it used to and the box is lacking as well.

That being said I decided to hold off putting anymore money into the system I wanted to build, I think it’s a great design with the motor above and the separator along with a Wynn filter attached to a clean out, eliminating the bag system and HF filter. The HF motor(1.5hp~ish)/impellers(10 3/4”) doesn’t pull enough CFM to run the ducting design and separator I want in my shop.

I know I had plans to install ducting with blast gates to all my machines but at this moment I thinks its a waste of money due to the lack of suction. I’m better off holding out and just living with what I have and saving my money to put towards a better DC down the road, that way I can get a larger main line(6” or 7”). I’m looking for a DC system where all my major tools have excellent air flow to get majority of the cuttings back to the trash can / cyclone, right now I’m lacking that with the HF w/ the separator. My longest run(Band Saw) would have been 20’ including flex and separator. I probably would have had a very low CFM at my further tools.

When or if the HF DC bites the dust I’m thinking of the 2.5HP TEMPEST “S” Series Cyclone Dust Collector with 14” Aluminum Impeller. I won’t have any problems running ducting to all my tools plus a couple floor sweeps.

Here is the video I made the other day after completing the separator before I decided to stop my plans of installing the Wynn filter and ducting to my tools.

So I finally got around to playing with the INCRA router today, I was able to see the potential of the precision and accuracy of the fine system. I will be using these in our walnut bedroom set I plan to build one of these days.

-- Lance, Hook'em HORNS! ""V""

4 comments so far

View Andy123's profile


226 posts in 2474 days

#1 posted 11-28-2011 07:54 AM


-- The mistakes I make in woodworking are not mistakes they just give my projects character- Me

View Bluepine38's profile


3379 posts in 3086 days

#2 posted 11-28-2011 04:34 PM

Not sure, but the lack of a good seal on the separator to the garbage can and the top of the separator
to the body might cause the loss of some suction. I have a home build DC that has a 14 amp motor driving
a 10-5/8” impeller that is hooked to a 6” main pipe that Ys to a 4” and a 2-1/2” that each have their own
Thien separators and I have adequate suction for my planer, jointer and lathe.

-- As ever, Gus-the 79 yr young apprentice carpenter

View dbhost's profile


5712 posts in 3232 days

#3 posted 11-28-2011 05:43 PM

I suspect something is leaking in your separator if you lost any truly noticeable amount of suction. Are you sure you fully sealed it, and have a good, leak proof seal between the separator and the trash can?

I have an in can type side inlet seaparator instead of your top had design, and I get no noticeable drop in suction… I use my HF cheapie DC to pull from both top and bottom of my table saw, band saw, and router table. It works great…

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View Grandpa's profile


3259 posts in 2676 days

#4 posted 11-28-2011 06:20 PM

Go to David Grimes posts and look at the videos he has posted. He has nothing but praise for his HF dust collector. No clamp required on the separator barrel etc.

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