Swiss army knife keychain

thingiverse

Material: Keys Several M4 spacers 2 x M3 shallow head screws (read instructions for length) Instructions: Choose how many keys you want to use in your keychain. Split your keys into two equal piles. In each pile of keys, add a spacer between each key and at the top and bottom. Add any extra spacers so that the smaller pile can match the height of the bigger side. Get the screw length by adding the maximum stack thickness (between both sides) to 4mm. This will give you the length for your two M3 screws. Insert the screws on top, then add the key piles on both sides so the teethed side of the keys face the interior of the keychain. Carefully align the bottom on top of the screws. Hold everything together while tightening the screws. If you have any questions or doubts, feel free to contact me. Enjoy your new keychain!