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post #1 of 3 (permalink) Old 04-18-2012, 03:11 PM Thread Starter
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Default Thien dust separator

I have decided to try my hand at making one of these. This is my progress thread for that effort.

I got some PVC plumbing stuff at HD ... 2 male/female adaptors, 3 elbows, and 2 flexible connectors. Total cost so far: $16.

This is for a Rigid 2 1/2" shop vac (that appears to be 2" inner diameter), so the pipes are 2" plumbing pipes. I was mulling over using 3" stuff, but the fit with the 2" stuff was much better, and the diameters of the inner walls of the PVC did not look any smaller that those of the vac.

The male/female adapters are for the opposing sides of the cover, so I will be able to make a good solid seal without having to mess around with hot glue. the flexible connectors are for the hookups to the shop vac.

Pics and plans later ...
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post #2 of 3 (permalink) Old 04-18-2012, 06:46 PM Thread Starter
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Thinking about it more, I am going to return the threaded adapters and go for a good fit without them. I can use some PC-7 or silicone sealant to make it air tight. That will save all of about $5.
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post #3 of 3 (permalink) Old 04-18-2012, 07:54 PM Thread Starter
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As a test, I took a 2 1/2" hole saw to a piece of 1x4. That gave me a hole that was between the 2 sizes of the pipe ... a little bigger than the "male" side, and a little smaller than the "female" side ... just what I was looking for.

Then I used a smaller hole saw as a sort of a "poor man's router", if you will, and rabbetted one side a little to fit the female side in nice and snug.

I may very well use this for the exhaust side ... why not? I just need to drill a hole in the eventual top and glue or screw it in place.

I can make another one for the intake side.
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