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Thien Dust Separator

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Project by Ralphie9 posted 05-28-2010 04:23 AM 3986 views 14 times favorited 7 comments Add to Favorites Watch

This is my Thien Dust Separator on a cart made from 3/4” plywood base, a 32 gallon metal garbage can recessed into the base, and my Ridgid shop vac also recessed into the base. I now get virtually no dust in the shop vac filter, and all the shavings stay in the can.





7 comments so far

View blackcherry's profile

blackcherry

3164 posts in 2488 days


#1 posted 05-28-2010 04:41 AM

I’m a believer since this past winter, it’s been a great addition to the shop. Hope you enjoy as much and breath clean air from now on…BC

View a1Jim's profile

a1Jim

112152 posts in 2242 days


#2 posted 05-28-2010 05:50 AM

Good job looks like a great set up.

-- http://artisticwoodstudio.com Custom furniture

View ajosephg's profile

ajosephg

1854 posts in 2226 days


#3 posted 05-28-2010 12:55 PM

Looks good.

I have a similar setup, but have a problem with the garbage can sides sucking in if the input hose gets partiallly or totally blocked. It doesn’t adversely affect the function but was wondering if your’s does that and if you have a solution.

-- Joe

View dbhost's profile

dbhost

5385 posts in 1897 days


#4 posted 05-28-2010 08:08 PM

Joe,

With the high static pressure of a vac, if you block the intake, or say the line gets plugged, it WILL suck the sides of the trash can in. Vac separators have been known to implode cheap metal trash cans, and the flexible plastic ones are all but unusable… Your best bet is a small rigid plastic barrel, say a 30 gallon or less…

I have 2 Thien separators in production now, and have made no less than 8 of them with friends. The ones I currently have are a 20 gallon steel trash can version set up for a shop vac, and a 55 gallon plastic drum version for my HF DC…

Ralphie,

Excellent build. I especially like the way you built the stand. Simple, but effective… Did you use the instructions from Phil’s site? If so were they easy to follow?

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

View BritBoxmaker's profile

BritBoxmaker

4378 posts in 1701 days


#5 posted 05-28-2010 10:04 PM

Thanks for raising my awareness to this type of dust extraction. I am planning to build one as I post.

-- Martyn -- Boxologist, Pattern Juggler and Candyman of the visually challenging. http://www.theartofboxes.com

View Ralphie9's profile

Ralphie9

12 posts in 1590 days


#6 posted 05-28-2010 10:52 PM

I did use Phil Thien’s directions…it was easy to follow and build. The stand is “home grown” =) I had some difficulty attaching the 4” elbow and straight pipe to the bottom (with 2 1/2” Rockler dust ports on top)...I used reducers and epoxy…also I used a commercial toilet flange to attach the EL.

Regarding the collapse of the can, it does not implode, but I do get flexing. I have not experienced a complete “suck down” but I bet it will implode. I was going to do two things:

1. Weld up some concentric rings/supports to stiffen the inside
2. I saw a relief valve set-up that mounts between the DC and the hose…

I will post Part 2 when I get it done.

Brian

View bspino's profile

bspino

2 posts in 354 days


#7 posted 10-14-2013 02:20 AM

Just made one this week end.Can not wait to see it work. Thank for the in put on this form

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