a parametric 3D CAD modeler
MathMod is a mathematical modeling software
Earth orbits and satellite coverage display in 3D on your laptop.
Open Source Solid Modeling CAD
Calculates Volume, Surface Area & Centroid of a Closed Triangular Mesh
Electromagnetic Analysis Software
A designer’s program for describing parts of the building
Modeling and Simulation made NiCE!
.NET library for generating 3D models of trees and forests.
Cuts 3D objects from polystyrene foam (EPS/XPS)