Happy Birthday Card Hardcase – STL for 3D Printing

A two-part **Happy Birthday Card Hardcase** for 3D printing. This model is designed as a small protective case and presentation box for cards in credit-card size, such as membership cards, loyalty cards, customer cards, bonus cards, vouchers, gift cards or similar plastic cards. The set includes a bottom tray and a matching top lid with an engraved **Happy Birthday** design. **Included files:** - Bottom tray STL - Top lid with Happy Birthday engraving STL - README with recommended pr