## Design Concept The model concept combines a mini ATM and a coin bank, cleverly utilizing magnets for easy opening and closing. ## Purpose This ATM bank is both a fun and educational tool to teach children how to save money, and a decorative piece for adults who appreciate unique piggy banks. ## Printing Recommendations Print with a layer height of 0.1-0.2mm to ensure a smooth surface. Use support material for detailed parts such as buttons and slots. Consider using PETG or high-quality PLA for increased durability. ## Assembly Instructions Assemble the two parts by aligning the built-in magnets on the lid with those on the main body, with magnet dimensions of 5x3mm, ensuring easy opening and closing when inserting and removing coins.