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Solving DC Resonance

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Project by Ick posted 11-29-2010 06:10 PM 2908 views 1 time favorited 5 comments Add to Favorites Watch

One of the goals of my recent shop remodel was to add a Dust Collection system. I chose the Grizzly 2HP system and put it in the uninsulated walkup attic above my shop. The floor of the attic was tongue and groove OSB sitting on 2X10 joists. The void in the joists was insulated with fiberglass batts, but I immediately noticed a humm resonating thru the OSB and joists. It wasn’t particularly loud, but I found it very annoying.

I improvised a frame that has worked very well. I had some leftover rigid packing foam that was 2” thick. I built a 2X6 frame that was a little over-sized for my DC base, plus a layer of foam around all 4 sides. I cut a piece of foam for the bottom as well. My DC is on wheels and to keep the wheels from tearing up the base foam, I cut a loose fitting OSB base that just floats on the foam.

No more resonance!! I can still hear the DC running, but it is very tolerable.

-- Craig, Oklahoma





5 comments so far

View Ken90712's profile

Ken90712

14938 posts in 1842 days


#1 posted 11-29-2010 06:38 PM

Good idea should help for sure! I bought the Penn Ind dust collector should be here today!!!!

-- Ken, "Everyday above ground is a good day!"

View DrAllred's profile

DrAllred

137 posts in 1477 days


#2 posted 11-29-2010 06:56 PM

Very neat fix, having a low vloume humming all the time can and will become very annoying….

-- David, Mesa Arizona

View AttainableApex's profile

AttainableApex

338 posts in 1486 days


#3 posted 11-29-2010 07:45 PM

i did the same thing pretty much to a fan i always have running.

-- Ben L

View NormG's profile

NormG

4175 posts in 1658 days


#4 posted 11-30-2010 01:07 AM

Wonderful solution/application

-- Norman

View BTKS's profile

BTKS

1967 posts in 2118 days


#5 posted 11-30-2010 06:48 PM

Great idea! I quited an overhead air compressor by mounting it on a platform then mounting the platform on three motor mounts. It kept everything quite but I believe your solution is more effective and cheaper to boot. Thanks for the idea, if I centralize my DC and move the motor upstairs I’ll be using your brain power.
BTKS
Took another quick look, it’s even the same DC.

-- "Man's ingenuity has outrun his intelligence" (Joseph Wood Krutch)

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