Baffle Diameter Question...

[Adamal]

I'm getting ready to cut my baffle and just wanted to make sure of something.

Am I correct in thinking the the large diameter of the baffle should be as close to the side of the can as possible?

Thanks.

[tvman44]

That is my understanding and also how I made my 2 separators.

[alan m]

yes . you want no gap there if posible

[WayTooLate]

Adam -
Most of the time we want to make the diameter as large as our container to create a much centrifugal force as possible to remove the debris from the airstream.   Most of the containers available to us are still small enough to get their air rotating inside the separator. 

You can mount a smaller diameter Separator on top of a large cannister.  I have put a "Shop-Vac-sized" unit on top of a 33gal Brute.  The Separator is just that - it separates the swirling air above from the still air below.  But I have found that a short ring (2-3") below the separator helps with small diameters on top of large containers. 

For what it's worth...
- Jim