Westpac Tap & Go keyring

thingiverse

If you are a Westpac bank customer you are able to get a small sim card sized chip Free of charge that you can link to one of your bank accounts. the chip is intended to be sewn into clothing or attached to watch wristbands, however i don't wear a watch so i came up with the idea of placing it inside a keyring, I wasn't able to find a keyring that could house the chip so i designed my own and 3d printed it. it works great and i keep getting baffled looks and positive comments almost every time I use my keys to pay for items at the checkout. Print both pieces flat side down, small tray perfectly fits the Westpac chip, dovetail joint allows both pieces to slide together then place keyring through hole to lock pieces together.