Foldable Swiss Army Style Key Holder

thingiverse

I have tried numerous Swiss Army style key holders / key rings on Thingiverse, and found that all of them suffered from the same major flaw: it was incredibly challenging for me to access the keys easily, making it almost impossible to do with just one hand. My response to this issue was to design a key holder that folds in half, providing straightforward access to my keys. Simply fold it one way to expose one set of keys, and then flip it over to expose the other set. You'll definitely appreciate this feature if your hands are preoccupied holding groceries. To assemble the key holder, start by printing four identical parts with minimal support and a sufficient amount of infill. Consult the side-view photo for proper orientation during the printing process. Once printed, attach everything together using 3mm screws and nuts – button heads are preferred. After assembly, you might need to trim or grind the excess length of the screws to fit comfortably. Don't forget to pad out one side with washers if your key arrangement differs from one side to the other.