Print and keep one of these in your keychain. When at your favorite supermarket, use this to release a shopping cart/trolley. Pull it back and put again in your pocket. Happy shopping !
This is my first 3d printer design back in 2014. The idea of course is not mine, I think there used to be dummy coins for shopping carts like these long before 3d printers were invented.
This design is from scratch. I simply measured a euro coin and placed a tag for your keychain.
This is my favorite print to hand out to friends and loved ones. It prints fast with no special settings. Both 0.2 and 0.3 slicer resolutions work nice. I have printed in PLA, ABS, PETG, all work great.
I have successfully printed in PLA, ABS, PETG. All work great.
trolley icon design downloaded from www.pixshark.com