First this is a remix of a design by los68. Thanks for giving me something to start with.

I wanted to close off the bottom and add cleanable filter screens to keep the dust to a minimum.

The filter piece I printed at .16mm layer height with no top and bottom layers. Just choose whatever infill you like and print 3 of them I used 3 #4 3/8" screws to assemble the base. I also added 4 small rubber feet