Swiss army keychain with space for nfc

This is another Swiss army keychain. I decided to design it to give space to hold a nfc key.

Details:

• Space for one nfc key, with hole to see it.
• Rough surface (circles) to improve grip and aesthetic.
• Adapter for a keyring to hold extra/temporary keys or hold/hang the keychain.
• Adapter for nfc made apart to avoid supports (or printed in another color). It needs to be glued.
• Three upper part versions:
  • Without space for nfc.
  • Wireless icon shaped hole.
  • Zaragoza Maker space logo shaped hole.
• Depending on the preferred place for the indentation, the bottom part must be mirrored.
• You can use washers and/or springs to better hold of the keys.
• WARNING: Some gap is needed between the nfc and the other keys to the former to work, otherwise you need to move the keys out of the keychain
• The nuts and bolts are M3 (DIN912 and DIN934), I use this.