CardMag

Hi there, I was getting frustrated with constantly worrying about losing my gym card after locking my locker. So, I decided to order some magnet rings and incorporate them into a custom 3D print. You can find these magnets very cheaply on AliExpress. Here’s how it works:The print is designed to pause automatically at layer 14 (height 1.14mm) so you can insert the magnet rings. Make sure all magnets are properly seated and flush with the surface—nothing should stick out. After resuming the print, you can apply double-sided tape to the less magnetic side of the print and attach it to the card. Enjoy the convenience of sticking your gym card to your phone or other metal surfaces. However, I don’t recommend leaving it on gym machines—you’ll likely forget it there! 😉