About this 3D model

Basic Balance/scale to help teach the concept of mass, density, or force to students or children. Compares to $17 models online. https://picclick.com/Wooden-Montessori-Teaching-Aids-Scales-Baby-Balance-Game-323714933093.html This model was designed in openscad. Minor post processing of print was required (ream holes, file/sand pins and joints).