A magnetic Key holder for a delightful entrance with a secret compartment for cash or more keys. This design is based on a 3d scan of the mushroom species “Ganoderma Carnosum”.

What you need

• The printed parts
• Magnets for keys: The maximum size to fit the compartment segment is 20 x 20 x 4 mm. The size you need depends on the weight of your keys and the strength of the magnets. I used 8 x 8 x 4 mm neodymium magnets in the strength N45. You can place up to 5 but I recommend 3.
• Optional magnets for the closing mechanism: 2 10x2 mm. It works without but is less secret.
• Glue or strong double-sided tape
• Wall fixation: Screws and dowels or Wall mount tape.

Instructions (go along with the images)

• Print all parts
• Insert the magnets into the compartment and check if they can hold your keys through the 0.6mm thick bottom.
• Fix the magnets in place with either glue or double-sided tape.
• Fix the magnet compartment in place (into the body) with either glue or double-sided tape.
• You can either screw or glue the holder onto your wall. There are various glue or tape products for wall fixation out there. I used 3M Tape. Old fashioned screws and dowels are the most reliable fixation.
• Insert the shelf from above until the holder is completely inside the body. Have fun with your new key hanger!

Size assembled ca: 200 x 100 x 66 mm This is the V2

Print settings Required build volume: 200 x 200 x 100 mm (works on a slightly smaller bed if you rotate the file by 45 degrees) Material usage: 170g

Material: PLA Print direction: stls are rotated correctly, check images Support: none Nozzle size: 0,4 mm Line width: 0,4 mm Layer height 0,2 mm Infill: 15% Build plate adhesion type: none