If your looking for a wallet that's easy to use and won't spill your cards on the floor if you turn it upside down, you've come to the right place. It's modular and comes in a 2, 3, & 5 card format, along with a flat back and cash compartment variation. It also has an RFID card plate if needed. Robust yet practical, I've kept the card count to manageable numbers. A 10 card wallet may sound cool, but it's a brick to carry around and a nightmare to lose so many cards. Only carry what you need.

The wallet only needs four M3 nuts and dome head screws for assembly (see diagram) with a thread length of 8, 10, 12, or 14mm depending on the configuration. Thread lengths are as follows.

2 card = 8mm long

3 card = 10mm long

5 card = 12mm long
The same length of screws are used for the flat back and cash compartment versions.
If you intend to use the RFID card plate, (add 2mm) to the thread length.
You can get M3 stainless steel screws and nuts cheap from Aliexpress.com

Top and bottom layers 6

parameters 4

resolution .2

Infill 20% grid

Prints in PLA or PETG but PETG is preferable for the card retainer.

The thin loop on the end of the card retainers are brim blockers, so select (outside only brim in your slicer) This will save on clean up time and is easily removed after printing. The wallet will function correctly without the RFID plate. You only need print it if you wish to add built in anti card skimming technology. RFID cards are available on Amazon and Ebay.

Assembly.

Remove all brims, lumps and bumps it the usual way.

Place the M3 nuts in their recess on the wallet back and use a small piece of tape to keep them temperately in place if they are a loose fit. (Skip the next step If you are not using the RFID plate) Put your RFID card into the recess in the RFID Plate and place it on the inside of the wallet back, with the RFID card facing (Down)

Now add the card retainer (print bed or smooth side down). Make sure there are no lumps or burrs on the sprung fingers, as they need to be able to move when the screws are tightened up. Place the wallet top on and screw everything together. Two rubber bands placed around the wallet will make the process a lot easer. Don't over tighten the screws as this may impede the movement of the card retainer springs. That's It! Slowly push a card all the way into the wallet, you should get that satisfying and some what addictive "click" as it captures your card. Enjoy!