by Charles Culp, SWtuts.com
This tool can be used to import *.es, *.3ds, *.ply, *.stl, *.obj, *.qobj, *.dae, *.asc *.off, *.ptx, *.vmi, *.bre, *.pts, *.apts, *.xyz, *.gts, *.pdb, *.tri, *.x3d, *.x3dv, and *.wrl
This technique will allow much larger STL files to be imported into SolidWorks than the native SolidWorks STL import tool. It uses .dxf as an intermediary format.
This technique requires MeshLab, which is open source software available here: http://meshlab.sourceforge.net/
This technique is limited by your system memory. Do not attempt this on large files with a 32 bit operating system. This is for 64 bit only, and I suggest it for users with a large amount of RAM. The PS3 controller imported for this video was imported on 4GB RAM on my home machine, an can be downloaded here (151MB). I hope to test the limits of this technique soon, to see just how large of an STL file can be imported.
I suggest clicking on HD in the following video: