У вашего броузера проблема в совместимости с HTML5
Download the 3D model in Solidworks 2015, DAE, STEP, IGES, STL, Parasolid, OBJ, SketchUp and 3DS here: https://grabcad.com/library/safe-lock-mechanism-wooden-toy-1
Based on a Youtube video (https://www.youtube.com/watch?v=CZ8WRDVgKrk).
Modeled with Solidworks 2015.
Rendered with Simlab Composer 6 Mechanical Edition.