This is an update to my This Cyclone Sucks! post on 3-11-13.
I have to say that I am impressed with this thing! Not only did I get to build it, it is working very well. I have emptied out the trash can of my Thein Cyclone Separator Lid 3 times and I only have about a foot of very fine dust in the bag of my Harbor Freight dust collector bag.
Here is a couple shots of the full can.
And one of the bag.