by MA Software MATruss performs static strength analysis of a structure made up by truss elements. A thoroughly tested and reliable solver analyses the truss model and produces the data needed for design.
by Dahlin Maskin FrameMaster is a FEM-program that helps you dimension almost all kinds of constructions: roof-trusses, floors, walls, bridges,furniture, shafts and much much more. FrameMaster is both one of the cheapest and most powerful program in its category.
by DWDesign S3Dfree 2000 is the FREE unregistered version of Solid3D. Solid3D Fastener library is a productivity tool for AutoCAD allows you to create solid models of assorted Nuts, Bolts, Screws and Washers.