Reply by brtech

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Posted on HF Dust collection question

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1029 posts in 2947 days

#1 posted 03-24-2012 05:22 PM

If you adding a trash can separator to the HF, then I think you are pretty much stuck with 4”.

If you are more ambitious, some jocks have moved and rotated the blower so that it’s a straight shot to the ring, and straight down to the separator. The motor is then vertical rather than horizontal as it is normally assembled. If you did that, I’d think about getting some 5” snaploc for the short runs from ring to motor and motor to separator. I notice that fireplace stores have 5” for some stoves.

I think you would be very happy with the Rockler system, but I also think a length of regular flex will also be just fine as long as the only thing you are doing is running from the separator to the tool. If you have a mix of rigid PVC and flex, you lose CFM fast in the flex.

Putting the Thien baffle in the ring is also a good option. The only downside is all the chips go through the impeller, and it’s harder to empty the bag than a trash can.

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