I've got a 1 hp blower that's constantly clogging up with sawdust. So I want to build a dust separator to see if this will solve my problem. Although I suspect the blower is too small.
I've seen the Lee Valley lids, but can't get over the price for a piece of plastic. I'm also not sure that it's the best design.
I'm going to make the lid out of mdf with a groove to fit over the lid of the garbage can. But I'm thinking that the output should be a pipe down the center of the can and not another elbow on the opposite side of the lid? I also thought that I should put wings (baffle) on each side of the center pipe to force the airflow to the outside of the can. The center pipe would look something like this --O-- (Top view). I'm not sure if the baffle should be a triangle, smaller at the top and larger at the bottom to force the air more to the outside (upside down cyclone). I guess a spiral would be even better, but a tad to much work for my experiment. How about an upside down cone, with the pipe in the middle?
Perhaps someone with more knowledge/experience could explain the error/air of my ways.