Our 3D CAD supplier models have been moved to 3Dfindit.com, the new visual search engine for 3D CAD, CAE & BIM models.
You can log in there with your existing account of this site.
The content remains free of charge.
POV-Ray can also be used to create previews. See Section 3.1.20.6.1.2.25, “ Generate image data/preview images with batch run ”.