dusty wrote:"More gooder" would result in the larger debris being deposited where?
In the bucket at the bottom of the 'funnel' with the small dust!
The second bucket allows one to attach it to something and then the collector bucket can be easily pulled out to empty.
There is a size limit created by the small size of the funnel end.
Maybe this will clarify things a bit. Sorry if I be too basic here! Think Kahn Academy!;)
The vacuum device(shopvac or DC) provides a lower air pressure than that at the open end of the collection hose. That difference in pressure causes air to flow into the collection hose carrying any dust/debris with it.
When all that reaches the inlet to the dust deputy, it is directed tangent to the top inside circumference and slightly downward.
The inertia of the debris stream causes it to flow around the inside of the cone shaped 'separator'. As it descends down the separator wall it increases velocity due to the decreasing radius of the cone. It is this vortex like flow with increasing velocity nearer the bottom that gives it the 'cyclone' label.
This increased velocity exerts a greater centrifugal force on items with higher mass. Gravity is still in effect, so the heavier dust/debris continues its motion towards the bottom(small end) of the funnel.
The air being the lighter substance in the input mix, will drift towards the center of rotation. The outlet hose(air) provides a path for that air to escape the separator.
The dust/debris will when it falls to the bottom of the separator will merely continue its downward path through the hole in the bottom of the cone and fall into the collection bucket. The whole thing from the collection bucket to the ends of both the collection hose and the vacuum hose are operating under reduced air pressure(vacuum relative to the atmosphere).)