This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Edging box with space to store the glass plates. Based on Jim Keller hint, in issue 176 of the magazine Shopnotes
STL (Stereolithography, filesize: 81.6 KB), OBJ (OBJ, filesize: 79.1 KB), 3DS (3D Studio, filesize: 50.1 KB), DAE (Collada, filesize: 111 KB), FBX (Autodesk FBX, filesize: 117 KB), IGE (IGES, filesize: 298 Bytes), MAX (Autodesk 3ds Max, filesize: 84.8 KB), SKP (Sketchup, filesize: 247 KB), OTHER (Other, filesize: 23.8 KB)