I wanted to share my quiet dust deputy with you all. This was built to fit under my assembly table. These pictures were taken with the front cover (3/4 MDF) removed so that you can see the design. Power is provided via an iVac automated switch.
With the cover off, my phone’s spl meter app says 97 decibels. My ears would agree. With the cover on it produces 80 decibels. The gray square you see in the motor/blower area is ½” homasote. It is a sound proofing material made of paper fiber. Adding it reduced the noise by 4 decibels.
dd2.jpg
The collection box was some left over countertop material. I put some close cell foam on the bottom side of the lid. The lid is held on with confirmat screws for now. I have some bolts and knobs that I plan to add later.
The vac box is 3/4'” MDF. There’s more weather stripping between the blower housing and the plate that divides the exhaust side from the filter side. To keep the filter in place, I used a bolt and a t-nut attached to the bottom side of the top plate. The inlet is a pvc coupler.
dd1.jpg