NFC/RFID Blocking Though Wallet - Tested with Flipper Zero

After printing the wallet from scaryPug, I discovered that it was not as effective at blocking NFCs and RFID tags as I had hoped. Even with the back duplicated in the front, there was still a spot that could be read by Flipper Zero. During my experiments, I found that a single sheet of aluminum was insufficient to block communication between the cards and the Flipper, so I decided to use two sheets of aluminum instead. This seems to have done the trick, as I was unable to read any data from the cards.

To further increase the security of the wallet, I ran two small copper wires from the front to the back using the small hole in the side walls. I then used tape to secure them between the two aluminum sheets. While I'm not entirely sure if this step was necessary, it was an additional precaution to make it even harder to fetch data from the cards.

For the printing process, I used PLA with a layer height of 0.1, a 0.4 nozzle, and a 50% infill. Note that I haven't tested with a copper sheet, as in the original design, as I had plenty of spare aluminum sheets available. Regardless, the modifications I made have resulted in a more effective wallet that provides greater protection for my cards.

I also added an Apple AirTag holder (including a hidden version) [remix from f1991714], a clear version and a version with the titan marking from Destiny 2 game [remix from Carahnios].