Key Magnets (Multiple Sizes)

This design lets you store keys on a magnetic surface and have the keyring lay flat. I made it because the other designs I found only attached the key ring perpendicular to the magnet, which then required a custom key hanger. There are designs for multiple magnet diameters. This is because a surface with its own magnets (such as a magnetic knife bar) will only need an 8 or 10 mm magnet to hold a fairly heavy set of keys, while a magnetic surface (such as a refrigerator) may need a 15-20 mm magnet to hold the same set. Each part requires two 3 mm thick magnets (trade size; in reality these are typically 2.5-2.7 mm), inserted in the print with a pause. 2 mm layers, PLA or PETG, only 2 wall lines, make sure you have good bridge attachment.