Well, I don’t really have any ideas for implementing the actual headphone portion. But as for the porous nature of 3d prints, I offer 2 separate solutions with wildly different cost points:
Get/use a resin printer.
Use a filler on the surface of your filament print like bondo, and then finish it with a coating of some kind, possibly epoxy.
Well, I don’t really have any ideas for implementing the actual headphone portion. But as for the porous nature of 3d prints, I offer 2 separate solutions with wildly different cost points:
A common one is to 3d print a mold for pouring a different material
Three options, two with a similar cost point and one with a different one!