Dust Deputy vs Bucket Lid vs Thein vs My Version - Dust Collection and Suction Tests - Page 2 - Woodworking Talk - Woodworkers Forum
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post #21 of 39 Old 07-16-2017, 08:33 PM Thread Starter
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Let me know how it goes and don't forget to test with some dark powder in the bottom bucket afterwards... it will help let you know if you are getting debris from the top or the bottom.

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post #22 of 39 Old 07-20-2017, 06:01 AM
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Works pretty good now. Not seeing more than a couple teaspoons full of media in the shop vac filter after 30 minutes or so of sandblasting. Before the inclusion of the Semi-Thien clone setup the filter would have been entirely packed with media within ten to fifteen minutes. Well worth the small investment now that I did it correctly. :)
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post #23 of 39 Old 07-20-2017, 11:33 AM Thread Starter
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Glad it is working better for you now. :smile3:

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post #24 of 39 Old 07-20-2017, 03:02 PM
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Taf,
You did a thorough job with your experiments. Very well done.
I have been using a Dust Deputy in my little shop. I have a picture of it in my photos.
Your post is a good guide for woodworkers who are looking for help with sawdust issues.

If you don't have time to do it right the first time, when will you have time to do it over?
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post #25 of 39 Old 07-20-2017, 03:52 PM Thread Starter
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Quote:
Originally Posted by Toolman50 View Post
Taf,
You did a thorough job with your experiments. Very well done.
I have been using a Dust Deputy in my little shop. I have a picture of it in my photos.
Your post is a good guide for woodworkers who are looking for help with sawdust issues.
Thank you very much! I am very glad it can help people, especially ones that are starting out with dust separation and don't know which rout they want to go.

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post #26 of 39 Old 07-21-2017, 04:48 AM
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This seems to be working better than my neighbors Dust deputy now. We tried his setup on my sandblast cabinet and it still pulled a fair amount of fine powder into the shop vac. This is barely pulling any powder now. Thanks again for the help and pointing out my initial lack of clarity into my own stupidity. Heh.
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post #27 of 39 Old 07-21-2017, 12:54 PM Thread Starter
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LOL. Glad you had something to compare against, and neat that my design is working better at separation. I bet there are ways to tweak it and get an even better removal rate. Maybe by slightly adjusting the inlet angle, or the exit pipe length, etc, but sometimes when you get good enough, it is just easier to stay with that.

Something I have thought of though that might make an improvement with very little work, would be to add a piece of thin plastic that is cut to the same curve as the bucket side to the bottom of the elbow with a tiny screw, then angle up to the lid with a little bolt that goes through the top of the lid to lock it in place. Basically creating a downward ramp so the flow of air/debris doesn't hit the back of the elbow pipe. Not really sure if it would help too much, but for light dust it could smooth out the airflow a bit.

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post #28 of 39 Old 07-21-2017, 04:31 PM
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This is great info, and thanks for sharing it.

I bought a Dust Deputy not long ago. I am happy with it, but I'm sure I could have saved a few dollars if I had seen this thread before I bought it.

... turning perfectly good wood into firewood every day ... :smile3:
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post #29 of 39 Old 07-21-2017, 04:43 PM Thread Starter
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Thank you.

Yeah, I was pretty surprised how easy and cheap a comparable dust remover was to make.

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post #30 of 39 Old 09-06-2017, 11:43 AM
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This is GREAT!!! I just started out on this path over the weekend and built a simple 90 degree in and strait pipe out to collect fine sanding dust. Mostly so I don't have to knock out the vac filter every 15-20 minutes. Worked for Chips but not really for dust. I'm going to follow what you've done and experiment a bit myself. Thanks!!
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post #31 of 39 Old 09-06-2017, 12:58 PM Thread Starter
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This is GREAT!!! I just started out on this path over the weekend and built a simple 90 degree in and strait pipe out to collect fine sanding dust. Mostly so I don't have to knock out the vac filter every 15-20 minutes. Worked for Chips but not really for dust. I'm going to follow what you've done and experiment a bit myself. Thanks!!
Glad it can help inspire. Looks like you are already pretty close... add some slits right against the sidewall of the bottom of your bucket and seal over a container and you will basically be there. :)
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post #32 of 39 Old 09-07-2017, 01:55 AM
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So, been using it a bit now since making the necessary modifications, and after probably 7 hours total of running my blast cabinet there was basically nothing in the shop vac filter worth blowing out. I tapped it on the edge of the work bench twice, decided it was a waste of time because there was nothing in it, and put it back. Huh. Something must be wrong. Nothing ever works the way it's supposed to, at least when you expect it to. Totally worth the time and small financial investment I put into it.
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post #33 of 39 Old 09-07-2017, 12:02 PM Thread Starter
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Sweet! Very glad it is working well for you. Sometimes the simpler things just do the trick.

Thank you for updating.
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post #34 of 39 Old 09-08-2017, 02:41 AM
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If you have any more DIY garage/shop/tool solution ideas I'd be glad to have a link to them. Thanks.
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post #35 of 39 Old 09-08-2017, 12:20 PM Thread Starter
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There is a lot scattered around my blog, but by using the keyword "Tools", it gets you to some of the main ones and you can follow connected links and such from there:
http://familyweb.us/TinkerT/default.asp?keyword=tools

You can also find a lot of assorted things all over the blog. Here is the non-keyword link:
http://familyweb.us/TinkerT/

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post #36 of 39 Old 10-09-2017, 10:56 AM
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Taf,

This is a nice modification to the Thien baffle, separating the slots vs. one long slot. Just to be fair, what you built to test the Thien baffle was similar only by the shape of the baffle. As you pointed out to Darkbreeze's original build the thick support around the slot openings will not separate very well. This is true with the Thien as well, but your test used a thick board for a separator baffle. But even worse for me was the observation of the big fat wood baffle flopping around in the bucket unsecured. I was shocked to see it was able to separate 50%. I am sure if I cut a piece of wood with spokes (like your separated openings) and let it float in a cyclone of dirty air it would have very poor separation. Other than the slot separation, your separator is the Thien. You built the taller version that many followers on his forum have built. I'm not quite sure if you purposely made a sloppy Thien for theatrics, but I have a Thien bucket build attached to my vac and it performs excellent. I see the difference between the two as your design requires two buckets and is taller (not good for portable units), but does not require the hardware to rigidly support the baffle to the lid. The other benefit of your build is you don't have to pay attention to how the baffle slot is aligned to the intake (which your test unit ignored as the Thien baffle floated around). The other benefit is using the bucket bottom for the baffle eliminates having to cut out a round disc and then removing the slot from that disc.

If I ever permanently mount my sop vac I may give this build a try.

Thanks,

Carl
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post #37 of 39 Old 10-09-2017, 11:18 AM Thread Starter
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LOL... No... I didn't meat to build a terrible thein example and really only included it in the video so people could see how wrong I went with it and maybe avoid the same issues. The first try was a total fail, but the second with a can of water under it to hold it down was marginally better. My intention was to finish the other tests and come back to fully build out a proper thein... use better materials, get the placement right, secure it properly, and do a wealth of adjustments to it until it got the best separation it could. However, after my own style (I have not seen any tall theins, so saw that as significantly different as well as the slot placement, etc.) got to 100% visible removal with such a very easy build and only one adjustment to the inner pipe length, I could not justify spending days and a lot of money to try to perfect a properly built thein.

If I had a way to test down to finer particles, I may have gone further into adjusting builds, etc, but 100% visible is where I felt ease of build outweighed dealing with something a lot more complex.

I do maintain that a perfectly built thein could very well have advantages over my version, but without ability to test that... I didn't feel necessary to go back. :)

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post #38 of 39 Old 10-10-2017, 02:45 AM
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Me either. It works. 'Nuf said. LOL.
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post #39 of 39 Old 10-10-2017, 11:11 AM
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Quote:
Originally Posted by Carl10 View Post
Taf,

This is a nice modification to the Thien baffle, separating the slots vs. one long slot. Just to be fair, what you built to test the Thien baffle was similar only by the shape of the baffle. As you pointed out to Darkbreeze's original build the thick support around the slot openings will not separate very well. This is true with the Thien as well, but your test used a thick board for a separator baffle. But even worse for me was the observation of the big fat wood baffle flopping around in the bucket unsecured. I was shocked to see it was able to separate 50%. I am sure if I cut a piece of wood with spokes (like your separated openings) and let it float in a cyclone of dirty air it would have very poor separation. Other than the slot separation, your separator is the Thien. You built the taller version that many followers on his forum have built. I'm not quite sure if you purposely made a sloppy Thien for theatrics, but I have a Thien bucket build attached to my vac and it performs excellent. I see the difference between the two as your design requires two buckets and is taller (not good for portable units), but does not require the hardware to rigidly support the baffle to the lid. The other benefit of your build is you don't have to pay attention to how the baffle slot is aligned to the intake (which your test unit ignored as the Thien baffle floated around). The other benefit is using the bucket bottom for the baffle eliminates having to cut out a round disc and then removing the slot from that disc.

If I ever permanently mount my sop vac I may give this build a try.

Thanks,

Carl
Carl,
I made a stand for my Shop Vac and dust collector that allows me to quickly pull the Shop Vac out and use it independently anytime I need to. By stacking the two units it has a smaller footprint and tacks up less shop space. I have a picture in my photos before I painted it shop gray.

If you don't have time to do it right the first time, when will you have time to do it over?
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