Hi Doctor B , i have a vacuum exit on one side where i plug a vacuum cleaner:
At the Bottom, the balls of sanding go in a plastic basket that i can slide on one side , so i can filter the paint résidus through a strainer and put back the basket Under the wood planks .
I have removed the grill upon the basket because the vacuum pipe needs to be modifyed in its position to avoid sucking only the air . The next thing i have to do is to fit a V Bottom in the basket so the balls will Always go to the vacuum hose
I have fitted two lights and the glass on the top can be easily removed when it is too much "sand blasted"