Where is your impeller and motor on this cyclone? Or is it linked to a seperate DC? What size did you use? I have everything to build one to Bill Pentz's specifications, but I have never seen one with the elbow off the top. Looks very nice.
I uses the 2hp harbor freight for the motor and impeller. This picture is old and how I had was mounted to a stand behind the cyclone and piped with 5" pvc. I have since changed it by mounting the impeller and motor on top. I had to lower the whole unit but now can tuck it back in the corner. I used Bill Pentz's specs from his website for all the dimensions and cut sheets