Mechanical Calculator (Addition & Multiplication!)

🧮 I designed a 3D-printable mechanical calculator that can perform ➕ addition and ✖️ multiplication!Available in 3 Styles: 🐸 Froggy, 🔢 Basic, & 🐵 Monkey!Entirely 3D-printable, no extra parts required! How to Use ItMove the feet to the numbers you want to add/multiply and the hands will point to the answer!There are 2 bases available to print: ✖️ Multiplication and ➕ Addition.How it works📐 This mechanical calculator operates using a planar hinge mechanism involving symmetrical isosc