A free new build of SnSMesh WIP plugin for Rhino is now available from Intact Solutions for download. New features include additional mesh selection methods for convenient specification of restraints and loads:
§ Connected face selection for low and high curvature regions. Video
§ In-solid selection for containment and interference with meshes. Video
Other improvements include a number of bug fixes and performance improvements. Note: This new version of SnSMesh requires reactivation of the free license, which will expire on March 2, 2013.