The Woodshop Shed

adventures in woodworking and home maintenance, from my shop in an oversized backyard shed

November 2022
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Confused: Anemometer, FPM, Bill Pentz, drops etc

Furnished content.
(from WoodNet.net)


I bought an anemometer to measure how well my old DC ( Delta 50-760, 1.5 hp ) attached to a Super Dust Deputy is performing.

I measured FPM at each of the 4" drops around the shot ( my straight runs are also 4" ), and it looks like I'm getting roughly 2300 FPM at each drop. I don't think I've ever had any major clogging in my system
over the years, but recently I've been looking to optimize the system without spending too much. I also replaced the filter bag and have it vented outside, which I like a lot, don't have to deal with filter bags etc.

I think my calculation for CFM is also correct, 2300/(2squared*3.1416)=183 CFM at the drops. I'm thinking this performance is probably "meh" at best. I'm thinking of doing a couple of things: replace all my stove pipe straight runs with 4" spiral pipe and compatiblefittings and geta better chip bin that I know is air tight.

I thought I'd try these things first, before biting the bullet and upgrading my Dust Collector itself. Thing is, if I upgrade to all 4" spiraland then I go with a more powerful system I may have wished my straight runs were 6", but I think 6" may be too big for my current DC which has a 5" inlet.

Any opinions from the woodnet crowd?

Thanks, Dave

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posted at: 12:00am on 20-Nov-2022
path: /Woodworking | permalink | edit (requires password)

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