QLMesh is small but useful QuickLook plugin showing a preview of various well-known 3D model formats. All formats provided by the  Open Asset Import Library (http://http://assimp.sourceforge.net) are supported:
3d, 3ds, ac, ac3d, acc, ase, ask, assbin, b3d, blend, bvh, cob, csm, dae, dxf, enff, fbx, gltf, gltf2, hmp, ifc, ifczip, irr, irrmesh, lwo, lws, lxo, md2, md3, md5anim, md5camera, md5mesh, mdc, mdl, mesh, mesh.xml, mot, ms3d, ndo, nff, obj, off, ogex, pk3, ply, prj, q3o, q3s, raw, scn, smd, stl, ter, uc, vta, x, xgl, xml, zgl.

I use this tool in my daily work, so I have added also support for some frequent file formats I work with: compressed textures (dds, etc/pkm and pvr (including multi-image support for mipmaps), Adobe Photoshop brushes (abr) and bitmapped font (BDF files).

Current version (1.1) is using Mesa for offline rendering, but somehow I not happy with this solution. The new build (2.0) is using OSX built-in support for COLLADA/ASE format - this much more convenience in daily use. See my blog at http://pawelp.ath.cx/