๐ Iโm launching a MakerWorld crowdfunding campaign for COINFINITY โ NFC-enabled coin stackers (Would love your feedback!)
Hey everyone! ๐ Iโve been working on a project for the past year that combines my passion for collecting precious metals with 3D printing โ and Iโm finally getting ready to launch a crowdfunding campaign on MakerWorld.
Itโs called COINFINITY. The idea is simple:
๐ช A smart, modular coin storage system that uses embedded NFC chips to track your collection using a mobile app.
With a quick tap on your phone, you can instantly:
- See what coins are in a specific stack
- Track what you paid for them
- Get updated melt values
- Organize everything with bins, bases, and digital tags
I've designed and printed stackers in 6 sizes so far (with more coming), and just finished prototyping matching bins and bases. Everything is 3D-printable at home โ but Iโll also be offering kits with pre-installed NFCs, magnets, and commercial licenses.
You can check out the project here:
๐ https://coinfinity.us
๐ฑ https://coinfinityapp.com
๐ https://coinfinitydocs.com
๐ฌ Discord if you want to chat: https://discord.gg/coinfinity
I'm really excited to bring this to life with the community and would love to hear your feedback. Especially from fellow makers and metal stackers โ is this something youโd use? Any ideas before I launch?
Thanks so much!
โ Gavin
Posted Aug 7, 2025, 12:53 AM UTC