J. Phil Thien's Projects

General Category => Thien Cyclone Separator Lid Discussion => Topic started by: bbrown on December 20, 2014, 01:03:22 PM

Title: Opinions wanted: Thein and Seperator
Post by: bbrown on December 20, 2014, 01:03:22 PM

   Can folks give me opinions as to two collector systems?

1.  I just bought the HF 2 HP dust collector at a good sale price.  This looked like a good Thien modification.  I like it because it is built right into the DC itself......
http://lumberjocks.com/projects/29578

2.  And here's a seperator that looks really simple to make (versus most of what I've seen).  If this works as claimed, I will probably make one.....
https://www.youtube.com/watch?v=lNDc66V1_64

Thank you for opinions,
   
   --Bill


Title: Re: Opinions wanted: Thein and Seperator
Post by: alan m on December 20, 2014, 02:16:48 PM
I have no experience of putting the separator inside the dust extractor

I don't like the second link. I only skimmed the vid.
I don't like the way the inlet is inside the barrel. that will create turbulence and reduce efficiency.
you would be better off building g a top hat separator

Title: Re: Opinions wanted: Thein and Seperator
Post by: alan m on December 20, 2014, 02:19:05 PM
sorry just looked at first link.

that should work . but I would still go for a top hat rather than a top inlet
Title: Re: Opinions wanted: Thein and Seperator
Post by: bbrown on December 20, 2014, 05:56:39 PM

  Thanks for taking the time to check the links and replying.  Really appreciate that.

I figured folks here would know.

Sounds like the 'Top Hat' is the way to go.

Is there any particular plan that folks like best?

--Bill
Title: Re: Opinions wanted: Thein and Seperator
Post by: BernardNaish on December 21, 2014, 02:08:11 AM
Best top hat design is here:

http://www.jpthien.com/smf/index.php?topic=563.msg3034;topicseen#msg3034

Its a fairly long post but gives almost everything you need to know. However do not use acrylic for the walls as it does not like being bent, think of it as plastic glass. Use polycarbonate instead as it is ideal for this job and should be cheaper.

Please let us know how you get on and if you can measure anything that would be helpful.
Title: Re: Opinions wanted: Thein and Seperator
Post by: alan m on December 21, 2014, 05:55:22 AM
You wont go far wrong if you follow retired 2s build

you have quite a read ahead of you
Title: Re: Opinions wanted: Thein and Seperator
Post by: bbrown on December 21, 2014, 07:16:07 AM

   Thank you Bernard and Alan.   Yes, I have a bit (12 pages on the one thread alone, and counting) of study ahead for sure.  I appreciate the replies and offer of help; I'm sure I'll be needing some.  I'd probably just buy one of these if they were available for sale.  My shop time can be such a premium these days.

--Bill
Title: Re: Opinions wanted: Thein and Seperator
Post by: jgt1942 on January 05, 2015, 10:40:56 PM
bill, the above tips are excellent. I used Plexiglass for my wall, it was tough bending it and I over heated a couple of times which produced bubbles. As suggest the polycarbonate would most likely be better. I'd also suggest building the two-high. I've only gotten into trouble twice with my build.
Title: Re: Opinions wanted: Thein and Seperator
Post by: chocdog on January 07, 2015, 06:13:25 PM
I just bought the HF DC also.  I am planning to do a mod similar but more like this one
https://woodworkingweb.com/creations/59-harbor-freight-dust-collector-conversion (https://woodworkingweb.com/creations/59-harbor-freight-dust-collector-conversion)
I am building the separator lid tomorrow