mini-cyclone shopvac modification

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Project by mreza posted 12-04-2009 07:45 AM 32093 views 104 times favorited 19 comments Add to Favorites Watch

This is a project I built a while ago but didn’t post here.
After getting tired of cleaning the filter on my shop-vac and also to see how easy it would be to build a full size big one, I decided to add a cyclone to my shop-vac (using Bill Pentz plans). Installed it on my Ridgid vaccume.

This thing really SUCKS!! and I mean it in a good way :-)
After using it for a while and filling the bucket a few times there is very little dust in the filter compartment.
A very worthy upgrade!

19 comments so far

View Nicholas Dillon's profile

Nicholas Dillon

33 posts in 2317 days

#1 posted 12-04-2009 08:23 AM

This is what I need. Can you post a link to the plans.

-- My workshop is a 8 x 8 shed! No Joke!

View Abe Low's profile

Abe Low

111 posts in 2932 days

#2 posted 12-04-2009 08:28 AM

You can find the plans by going to You will find a wealth of info there to include a toxicity index for many kinds of wood.

-- Abe Low, Fine furniture, Sacramento, CA

View Ken90712's profile


16034 posts in 2275 days

#3 posted 12-04-2009 11:21 AM

Nice, I have a cyclone and need to mount it to the vac so they stay together.

-- Ken, "Everyday above ground is a good day!"

View DannyBoy's profile


521 posts in 2951 days

#4 posted 12-04-2009 04:05 PM

Great work!

-- He said wood...

View jcoulam's profile


53 posts in 2486 days

#5 posted 12-04-2009 04:27 PM

So cool! I’ve been trying to figure out how to do something like that.

Thanks for posting your design.

-- Jeff Coulam, Lakeway Texas

View spaids's profile


699 posts in 2779 days

#6 posted 12-04-2009 04:32 PM

I bought a shop vac cyclone from clearvue I can’t speak highly enough of those guys. The cyclones works great and the customer service is OUTSTANDING. I broke mine and went on to their forum to ask about the best glue to use to fix it. The owner was monitoring the site and just sent me a new one. He told me how to fix my old one and said I could fix it and have two of them if I wanted or I could throw it out. He didn’t care what I did with the old one. I said it was my fault that it broke but he didn’t care. He said he didn’t believe that I should have been able to break it and wanted me to have a new one. I paid NOTHING for the replacement. This wasn’t during the first 30 days or anything either.

-- Wipe the blood stains from your blade before coming in.--

View spaids's profile


699 posts in 2779 days

#7 posted 12-04-2009 04:33 PM

oh and yours is freakin awesome by the way. I like how you use the shop vac bucket. Nice.

-- Wipe the blood stains from your blade before coming in.--

View JJohnston's profile


1613 posts in 2377 days

#8 posted 12-04-2009 06:20 PM

Pretty clever, but is it top-heavy?

-- "A man may conduct himself well in both adversity and good fortune, but if you want to test his character, give him power." - Abraham Lincoln

View mreza's profile


70 posts in 2614 days

#9 posted 12-04-2009 07:10 PM

thanks for the comments.

The cyclone has a ramp inside (will try to post a photo later). It’s basically a scaled
down version of the Pentz design. It’s about 6” in diam.

As for top heavy: it is top heavy BUT the center of gravity is inside the bucket, also
the location of the hose connection means you pull it to the opposite side of the motor, so not likely to tip over (at least has not happened to me).

View a1Jim's profile


113815 posts in 2663 days

#10 posted 12-04-2009 07:39 PM

This looks great , If I have the funds to purchase instead of building I do, but I admire folks who take the time and effort to build there own equipment .

-- Custom furniture

View ChesapeakeBob's profile


361 posts in 2569 days

#11 posted 12-04-2009 08:10 PM


-- Chesapeake Bob, Southern Maryland

View Willow's profile


18 posts in 2194 days

#12 posted 12-05-2009 03:19 AM

Can anyone say R2D2? This is the most interesting cyclone I have seen yet!

View WoodTookSoLong's profile


30 posts in 2235 days

#13 posted 12-05-2009 09:06 AM

Wow, that’s intense. Sweet build!

-- Ben

View Dennisgrosen's profile


10850 posts in 2201 days

#14 posted 12-05-2009 10:46 PM

I like the way you build two unit´s together and sawe space I have put on my faveritlist so even that I seen other´s here this will remember me how to use an old industri wac in my celler just wayting for a project like this


View RexMcKinnon's profile


2593 posts in 2281 days

#15 posted 12-07-2009 06:23 PM

WOW that’s great. Added to me favorites

-- If all you have is a hammer, everything looks like a nail!

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