My inner millennial is going to show here a bit. I am starting this post to catalog my enclosure building process. I know there have been other post, but I wanted to have my thoughts/process in one spot where I could also get feedback from the community. I have done a lot of searching on the web, and while there is a decent amount of information available it is scattered about and a lot of it is old. So I figured I would gather my resources in one spot for those who might follow in my footsteps. Moderators, if there is a better spot for this post I apologize.
I've done a lot of research on the CV1800. The one aspect of the cyclone that I took a bit of a gamble on is the noise levels. I live in a subdivision, granted our lots are a little bit bigger than the average neighborhood so I have that going for me. The most effective form of noise dampening is distance thanks to waves propagating via 1/x2. There's about 30-40 feet and a wall between where the DC will be and the neighbors living room. My shop-vac is 85'sh decibels and it hasn't caused any problems so I'm hoping i'm blowing this out of proportion.
We aren't planning on living in this place long term, we are currently saving to move out in the country but that's at least 4-5 years out and I'm not willing to put my woodworking adventures on hold. So I am going to make a portable enclosure, because I don't want to build a random closet in my garage that I will have to take down when we leave.
I'm not worried that much about noise coming into the house. My garage is on the opposite side of the house from the living room and bedrooms. My wife can't hear any of my current equipment running while she's watching TV and my table saw and miter saw are pretty loud.
So step 1: Brainstorming...
I purchased the CV1800 RH Bundle, with their 30 gallon drum. (101 inch height) I have 9 foot ceilings. While my space is a little small, i'm not super worried about minimizing the footprint. I have almost an entire 15 foot wall at my disposal.
I plan on building the frame and testing the cyclone to see if the noise is acceptable and then go from there since most of this acoustic dampening material is $$$$$
- It will be a freestanding enclosure, built of 2'x4'x105" studs. (The biggest I can fit in my vehicle)
- I wanted to isolate the noise from the structure of the house.
- Make the unit "portable" for when we eventually move.
- I'm thinking OSB on the inside and outside of the frame as "skin" and to reinforce the structure.
- I've read that OSB/chip board has superior noise dampening ability to plywood.
- Rockwool/Roxul batting in between the skin layers.
- Soundboard of some type applied to the inner skin layer with green glue.
- Isolate the impeller/cone and transition in a sound proof box. Leave the motor free to open air at the top of the enclosure.
- Acoustic caulking on joints inside the isolation.
- Shaped "egg crate" foam attached to the ceiling and wall above and behind the enclosure.
- Sound absorbing material to dampen echoing
- Hinged portion of the outer wall to allow the drum to be emptied.
- I'm not sure how to handle the filter assembly yet.
No battle plan ever survives first contact. So i'll update periodically as I go!