Spinning top credit card (20 seconds)

I made this spinning top card (ISO/CEI 7810 ID-1) to enter the Kit Cards contest.

The credit card format follow the ISO standard but may be a little bit too thin for optimal use, but at least it works and fits in your wallet ;)

2023/07/11: Improved parameterized version with faster printing time, thinner shaft and a resizing of the discs that let you use one as a 1 € coin for your shopping cart emergencies (bottom right corner of the card).

Maximum spinning time 20 seconds with the ISO version (0.76 mm thick).