A new library of 3D models and problems for teaching crystallographic symmetry generated through Blender for use with 3D printers or Sketchfab

Abstract

A new and growing library of 3D models that can be utilized to illustrate many important concepts in the field of crystallography is presented. These models are accessible in the classroom via computers and smartphones and offer significant advantages over 2D depictions found in crystallography textbooks. Through the use of Blender, a free 3D modeling and animation program, over 100 new models focusing on different aspects of crystallographic education have been created. To simplify distribution/access, all of these models have been uploaded to Sketchfab, a model hosting and viewing web site that works similarly to YouTube. The current set of models is also given as a list in the supporting information. All of these models are free to view in a web browser or through a smartphone application. Additionally, all of these models are freely downloadable through the supporting information and Sketchfab, and users are encouraged to download and modify these models to best suit their needs. This library of models is part of the authors' ongoing outreach program to provide 3D models for free for educational purposes, and the authors offer their services to create additional models and moderate this library as additional requests or critiques are provided.