Slot Width (again)

[flawsnall]

My build is coming along nicely, but i switched horses in the middle of the stream. I was going to make the sides of the cylinder out of 1/8" polycarbonate and cut all the pieces accordingly. Then i switched to sheet metal instead. I can adjust everything but my slot in the 1/8" hardboard would have to be widened to about an inch and a quarter.

I have a full sheet of hardboard and it would not be too hard to build a new baffle piece, or mount the one i have cut and flush trim it to the sheet metal diameter. What do you guys say?

The only reason i ask is that i am using a small 580 CFM blower in a 16 inch diameter, 10 inch tall tophat with 6" intake and exhaust. With these parameters is the slot width critical?

Still a little confused with the outlet height too. How far from the baffle should outtake pipe be?

Thanks
Paul

[alan m]

slot width is a compomise between small enough that the dust goes down but cant come back up and large enough that the dust can go down . the baffel helps to seperater the air movment in the seperater fromt he dust in the drum
phil played with these peramiters and found that 1.25'' works best  for smaller dust and chips. if you do a lot of long striny  shavings then you can widen the slot  but at the potential cost of having more dust pulled back up out of the drum

the outlet of the seperater should be half the diameter of the pipe up from the baffel. in your case 3''