Just updating for people still looking to print one of these. the FDM version of the carbon filter and the grates do NOT have holes in them. In your slicer, you need to change the top and bottom Shell layers to ZERO and set your infill to whatever pattern you want and the appropriate density for your carbon size.
As for the EPDM seal, you can find O-ring cord stock in the appropriate size for cheap on amazon (25' of .063" for $13.50 at time of writing)
Just updating for people still looking to print one of these.
the FDM version of the carbon filter and the grates do NOT have holes in them. In your slicer, you need to change the top and bottom Shell layers to ZERO and set your infill to whatever pattern you want and the appropriate density for your carbon size.
As for the EPDM seal, you can find O-ring cord stock in the appropriate size for cheap on amazon (25' of .063" for $13.50 at time of writing)