Tumbler dust control

I put an empty overturned bucket over my tumbler when its running... really helps to keep the noise down in addition to catching any dust. I don't know how it affects the motor, if at all, but it hasn't overheated yet.

I just put the lid in a ziplock bag and put it on.

Instead of a bucket I put an old recycling bin over it and then throw a blanket on top. Cut the noise down bigtime.
 
I do, and, if the media gets esp dirty, I even rinse and then dry the media. Helps keep the brass cleaner but I am not scared of the dust getting out, just don't want to spend time wiping the brass.

Funny thing. Sometimes I wash my brass, if its dirty from the ground, or if it's winter and the brass is wet from snow. I chuck it in the tumbler wet. Honestly it seems to get some of the crud out of the media and the brass still comes out shiny. Perhaps it just helps the abrasive to bind to the corncob again.
 
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