What can I do to at least dampen the vibrations?
Somebody said use some rubber but I don’t know the specifics.
Why the heck is that ramping up and down?
Also don’t use duct tape…it’s meant for HOT exhaust, not just air. Use foil tape if anything.
Some Context.
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It’s installed via two screws and tox/screw anchors
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Removing the Aluminum Exhaust Pipe thing removes the sounds/vibrations from the range hood.
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Sorry, I’ve been trying to login at least a couple times a week but haven’t seen any notifications that there were new posts. I tried to watch the video but it says the r/DIY community is private. Just based on your description though I was wondering if maybe you need to balance the fan blade. I’ve had that problem with a few cheap fans and was able to get them to run about 90% more quietly by just eyeballing the blades and bending the one that looked “off” back into place. I think Mattias Wandel has a video somewhere on how to get really scientific about it if you want to get down to zero vibration.