J. Phil Thien's Projects

Thanks for the suggestion! I will try enlarging the D. Actually, the CFM is now much better than before after I restarted the separator today. The CFM actually is now up to 90 to 95% of what it used to be!! It must have a clogged some where that went away!!! The separation is actually more like 95 to 98%!!! I will let you know about the results if I enlarge the D. At this point, I might not do anything because I can live with the present condition of losing 10% of CFM with 95 to 98% separation!!

I just signed on. I added a simple 30 gallon trash can dust separator to my Delta 50-760 dust collector in my work shop 6 yrs ago. This was not working at all. 95% of the dust and chips were in my collection bag. Only 5% made it to the trash can collector!! This week, I decided to add the Thien baffle to my trash can dust separator. I am very happy to tell you that my test run after installing this baffle (few minutes ago) was very successful! It separated out over 95% of the dusk and chips! Thank you for sharing your great design!! I did notice a great reduction of the air pressure in my fiber air filter bag. It used to be like a blown-up balloon when the dust collector is in use. With the Thien baffle installed, the air filter bag is having trouble getting blown-up! It is now only about 40% blown-up!!!  I have the radius of the baffle reduced by 1.125" per plan on the 240degree portion. Do you think I have to increase this reduction of the radius to 1.5" to reduce the resistance of the baffle to increase the air flow of the system??? I am sure you have already answered this problem. Help!!