Shopping Cart Coin Keychain (PULLS OUT!)
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A coin replacement keychain to unlock shopping carts. Can be pulled out of most carts, so you can stow away your keys!
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Gadgets
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Not many people carry coins anymore, but everyone carries keys! So I designed this keychain to help with the problem. It works with carts in Switzerland and should work with european and american carts (1 euro and Quarter respectively). After unlocking the cart, just pull on your key ring and it should pop out. It is 24 mm in diameter, so if it doesn't work, try scaling it down to 23mm.
Print Settings:
- Recommended to print in PETG for longevity. PLA also works but has not been tested long term.
- 0.2 mm layer height
- 0.4 mm nozzle
- 100% infill (recommended to adjust top and bottom layers to have no infill layers)
Post processing:
- If you have a problem with layers bulging at the top, sand it flat. It is not a necessary step, but it improves ease of use.
- If you like, you can paint the cart to stand out, or make the top layer a different color. Whichever you prefer or can do.
Enjoy! Comment if you have any problems you wish me to address.
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