Dust Collectionm my modification and experience using the Thein plate

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Project by bushmaster posted 01-15-2015 04:01 AM 2559 views 8 times favorited 4 comments Add to Favorites Watch

I just finished this project a few days ago, original pictures of the dust collector construction I am not able to post. I got the basic idea of converting a two stage dust collector to a single stage from another lumberjock. I mounted the unit on top of a 45 gallon barrel outside the shop to lessen the noise and mess, and I do not have allot of space.
The system worked wonderfully, lots of suction, very little blow out of shavings Then one day when I had the barrel out I noticed the Thein plate was not in the right position. When I made it I positioned it to the front but when I installed the motor outside the inlet was at the back. I thought changing it back would solve all problems, so take it apart and put it together properly. that assembly is heavy for one person on a latter. Now the problems started, it soon plugged with shavings and lots of them blew out. NO GOOD. My 20 inch planer didn’t help the situation.So go through the same process and change it back, my back hasn’t recovered. In the original position the shavings are entering the slot near the end, in the 180 degrees position they are entering at the beginning of the slot. At least that is what I think. I widened the slot abit more too as my shavings are quite large. If I had to do it again I would not rotate it a full 180 degrees, If that motor was not so heavy one could experiment more. I works fine now so will leave it deposits the sawdust and shavings nicely. . To raise and lower the barrel I modified a car jack with plates to slide on melamine. Fast and easy.
The idea of the tower next to it was to capture any shaving blowing by and especially the discharge when I don’t get to empty the barrel in time as you can see. I have screen on top the tower and a door on bottom to empty if necessary. Discharging the air outside you do not have to clean filters and the suction is better. In cold weather the unit is only on when needed, with just the vent to the machine you are using.
I hope this information, construction and experience will be of value to someone building a low cost unit. Any comment or suggestions are appreciated, and will answer any questions I hope what I said made sense. And Yes Railbuck I did salvage all of the materials.

The end of the slot now ends where the original began, What are your thoughts on this design change, have you had any problems with it plugging under heavy use. Also it is not worth it to try to clean dusty air and return it to the shop unless necessary, Better to draw fresh air in.

-- Brian - Hazelton, British Columbia

4 comments so far

View ralbuck's profile


1801 posts in 1687 days

#1 posted 01-15-2015 04:10 AM

Edited to add GREAT WORK! Almost forgot.
I think you are going to have to change that “Master” title to “KING!”

Beats the one we have!

I used to have a modified screw-jack under an old heavy scrollsaw so I could raise it for standing or lower it for sitting position. I liked that stand better than the factory one that is under my DeWalt 788.

Machines and patterns are only places to start from to make things right/better!

-- just rjR

View hotbyte's profile


825 posts in 2396 days

#2 posted 01-15-2015 01:27 PM

I like this. I’ve had similar thoughts since my shop is only 12X24 (more or less). My thought was to still use a filter after the fan and put a HVAC type return between the “filter room” and shop using HEPA type filter in the grill.

View exelectrician's profile


2327 posts in 1848 days

#3 posted 01-15-2015 08:14 PM

I totally agree with the concept, ‘put all air that might have dust in it’ – Outside.

I do that, and work in a cold shop that has clean air. I put health before comfort.

-- Love thy neighbour as thyself

View fivecodys's profile


566 posts in 1056 days

#4 posted 01-16-2015 12:14 AM

This is very interesting to me.
My DC sits in a corner of the garage. I don’t mind it there either but could I have the exhaust exit the garage the same way the our dryer does, though it’s own dryer type vent?
Very interesting thread Mr. Bushmaster!

-- Chem, Central California

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