Shopping Cart Keychain

pinshape

This is a 3D Printed Shopping Cart Keychain Attachment. The concept revolves around attaching this to your keychain and inserting it into shopping carts instead of using a quarter. I measured it precisely to match an Israeli Shekel Coin, which aligns with most international standards. The initial version was designed in Tinkercad, resulting in successful printing (and seamless integration into the cart). However, the second iteration, crafted in Fusion 360, boasts improved design elements and features a filet. Currently, it is extruded to 1.3 mm, but an optimal range would be between 2.4 to 2.6 mm for proper functionality. Key V5 represents the corrected version, boasting enhanced length, relocated keyhole position, and refined filet details. This updated design has yet to undergo printing.