NFC KEYCHAIN for backpacks and keys
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I’ve designed this special keychain, which contains an NFC chip inside.
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- Creative Commons — Public Domain
I’ve designed this special keychain, which contains an NFC chip inside. I’ve stored my phone number on it in case I lose my keys or backpack, but you can store anything you want—📱 social media profiles, 🌐 a website, ✉ email address, and more!
🧩 It’s also printed as a single piece—no need to glue or assemble anything. Just follow the tutorial to print it:
🖨 Printing Instructions (I used Bambu Studio, but feel free to use any slicer you like):
1 Go to layer 14 and right-click to select “Add Pause” ⏸


2 Drag the layer bar all the way to the top and send the file to your printer 📤

3 When the printer reaches layer 14, it will automatically pause ⏱

👉 That’s when you insert the NFC chip and press “Continue” ▶
💡 Extra Tip: Some printers don’t support automatic pauses—you’ll need to pause it manually from the printer’s interface. Don’t worry, the result will be the same! ✅
I used the “NFC Tools” app to configure the chips. 📲💾
Chip:https://es.aliexpress.com/item/1005006331253844.html?spm=a2g0o.order_list.order_list_main.29.74ce194dOhsNDr&gatewayAdapt=glo2esp
Strap:https://es.aliexpress.com/item/1005006327062490.html?spm=a2g0o.order_list.order_list_main.5.74ce194dOhsNDr&gatewayAdapt=glo2esp