Looking great!
Thanks sir! Appreciate catching up on the happenings here! Hope the "drinking from a fire hose" part of the new gig is slowing down!
So maybe longer post ahead...
Most of the obvious work here the last couple days has been on the "****" side of the dust collector...but the "blow" side has been in my mind as need them both. On the same auction I picked up the disc/belt sander....I got some air filters as well.

And by some, I mean (8) of them. They're originally for a Torit style dust collector, but are 14" or so outside diameter, 10" inside, MERV 11 and deliver 295 sq ft of filter area per filter. The intent was to use them for the exhaust/blow side of the collector as they're very close to what's out there commercially...and I got 8 for less then I could get 2 of the ones from Wynn/Oneida etc
Initially I was thinking of stacking (2) together, the bottom will need a hole cut in it...but that's easy enough

That was going to loose a bit of room, plus didn't leave me as much room to try and address noise if I didn't like it...so I started wondering what if I don't stack them...but run them horizontally like this:

With a wooden manifold/plenum box of approx dimensions 56" long x 24 deep x 12" tall, then line the interior with acoustic panels/mineral wool insulation(ugly green modeled as 3.5" thick mineral wool/rockwool) to mimic the concept of the dust collection silencer or sound filters that are often inline with the filter assy's (example from Oneida here)

Bottom would be existing 1.25" thick plywood I already own, sides and top would be 3/4" ply, I'd hang/support everything off the bottom. Casework designed so for interior access either pull the filters out, or take the top off, likely in that order as it's going to be heavy and 9' in the air so it'll have to come down if it really needs taken apart...but it's feasible. Glue and tape all seams...well except no glue on the top panel so it can come back off down the road.
Filters get held up with 3/8" or similar threaded rod with a bottom plate that isn't yet modeled. There will be a dust collection bag/bucket or something on the bottom to catch the fines that float thru and down. Figure 1x a year they get pulled down and taken out to the field south of the neighborhood (literally, the development has a corn field next to it...for at least a couple more years) and blown out with the Makita cordless blower
Would go about "here" in the garage...however long of a section of pipe I need/am told is best to feed it:

That model is a "bit" behind, there is some racking on that wall where it's shown now....but it's just framing lumber and can find a new home...or help build neighborhood bonds while charring hotdogs one night in the driveway
I've been probably overly cautious about noise on this project, there are a couple likely factors on that. That blower motor and dust housing is right below the primary bed/bath....and I'd like "wife approval" or at least not "wife disapproval" to be running it early or late. I'd also like it to be quiet enough that I don't have a reason to not have it on when I'm in there making chips, and ideally would like it quiet enough the kids don't object if it's on when they're out there. The tools I might use when they're out there is different, and with the vfd control I can lower motor speed/noise level as well, but much of the noise is as the air movement/not the motor so trying to soften/dampen that as I can.
I don't have the space to put this in a dedicated, walled off room unfortunately. I have thought though that I could "hang" some mass loaded vinyl or other material(carpet etc) perimeter of the box, straight down past the bottom of the filters to help give another soft surface to dampen noise and soften the space. I'd probably start with the carpet as I can get that cheaper and see what it does. If it works well there are a couple ways I could take that concept farther. If it seems like this is "too much" filter area for the blower after using it, I can either plug one of the filters off to keep the airspeed up and reduce dust dropping out....or upgrade the blower/motor
Thoughts? Experiences? Any similar concepts people have seen/done? The horizontally arranged filters off a common plenum/manifold isn't new...just normally metal and not in home garages
Welcome the feedback/thoughts/have you thought of this/don't do this etc as you've got it and thanks in advance for continuing to follow along
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