I read Greg McCallister's post and pictures (http://www.jpthien.com/smf/index.php?topic=90.0) of his design and setup. Very interesting, however, I have several questions:
As has been suggested by him and others, using a separate separator (garbage can) attached to your DC will likely reduce suction thus the design idea of putting the cyclone/baffle in the DC to minimize the loss.
But...unless I am missing something here...isn't Greg McCallister setup still using a garbage can separator, that is separate from the DC? So why didn't he noticed the same losses? I realize that there are less hoses since it is attached directly to the motor, but doesn't the largest loss come from the garbage can itself?
Also, he is using 6" piping. Again, maybe I am missing something important, but no matter how large the pipe is, if it has to be eventually dropped down to 3" or 4" to connect to the power tools, don't you loose any advantage of the larger diameter pipe? The air still has to be squeezed down to fit through the smaller opening at the ends. Wouldn't that constriction take away any advantage of the larger pipe? Besides, wouldn't a larger diameter pipe reduce the suction (static pressure) developed by the DC?
Confused (My wife says I stay confused most of the time, anyway)
As has been suggested by him and others, using a separate separator (garbage can) attached to your DC will likely reduce suction thus the design idea of putting the cyclone/baffle in the DC to minimize the loss.
But...unless I am missing something here...isn't Greg McCallister setup still using a garbage can separator, that is separate from the DC? So why didn't he noticed the same losses? I realize that there are less hoses since it is attached directly to the motor, but doesn't the largest loss come from the garbage can itself?
Also, he is using 6" piping. Again, maybe I am missing something important, but no matter how large the pipe is, if it has to be eventually dropped down to 3" or 4" to connect to the power tools, don't you loose any advantage of the larger diameter pipe? The air still has to be squeezed down to fit through the smaller opening at the ends. Wouldn't that constriction take away any advantage of the larger pipe? Besides, wouldn't a larger diameter pipe reduce the suction (static pressure) developed by the DC?
Confused (My wife says I stay confused most of the time, anyway)