J. Phil Thien's Projects

I just finished 16 inch high unit, and I also was wondering if anybody had eliminated the 120 degree area.

My top and bottom is 5/8 partical board, I used 1/8 inch polycarb for the side, and yes the 20" circle was
difficult, especially after removing the bottom so I could Dremmel the input, I like to never got it back together..
I had no easy way of trying to form the polycarb, so I have a brute force circle, and to finally get it reassembled
I drilled 5 evenly spaced 7/8" holes in the 120 segment, need some work holes to pry on the polycarb, I have the exhaust
pipe approx 2.5 inches above the baffle, unit appears to be working quite well.

Just recently fired up my 30 gal trashcan I threw together over a year ago
I used  5/8 inch partical board - 2 layer for the top - used standard 4 inch stove pipe  elbo- and exit(straightened)
close fit and bonded with liquid nails , for the baffle I used 3/16 masonite and supported by small wires ,  hanging about 4-5 inch gap , I had to add a small 1-1/4 foam block at center of baffle to keep baffle from side of trashcan.. I never could decide on a blower, but  have now directly top mounted my old sears leaf blower on the center pipe and currently expel back into shop ( I do little sanding ) plan to filter later....
I'm amazed how well this is working ( a 32 gal shop vac ) I see nothing being expelled , but I'm sure fine dust is.
I'm running a window fan(sitting on floor) with a furnace filter attached on slow speed to   to catch some of the fine stuff.  The can in now 1/2 full of jointer and table saw  and floor shavings ....
Problem is now the bearings in my 40 year old leaf blower are going  bad ....
Again I must say my CLUDGE is working great,  then again maybe I just got lucky.......