Good day

My sanders have the dust extraction port but the dust extraction is very poor.

I made this very small modification that improved the dust extraction to a level that I have dust free sanding.

PS you don't have to start smoking

I made small improvement to the ROS that gives me “zero dust” sanding.

You can use any other flexible material instead of the Weather tape (that's what I had at the moment) to clear the orbit.

I found the Iron-on tape to be much better than the cardboard that I used on the square sanders.