4" Magnetic dust port

This is my version of the magnetic dust port.  It uses 14 8mmx3mm magnets.  It is super strong.  I made the models, so they require no supports.  They can be printed with the magnet side up.  If the magnets you use are polarized, you can alternate  every other magnet to make sure you get the magnets right.  You can always use a portion of the magnets if you want something less strong.

12/21/24 Adding a 20 magnet version because the 14 magnetic version didn't have as much strength as I wanted in use.