If you have read about explicit, geometry-based 3D CAD, you know it is the best approach for creating flexible, lightweight designs. Now, PTC brings you a free download from the CoCreate product family - CoCreate Modeling Personal Edition, a 3D CAD system you can use for assemblies with up to 60 parts. Download a FREE version of CoCreate Modeling Personal Edition today and see how liberating an explicit, geometry-based 3D CAD system can be.

ArBa3d is a 3D modeling software that allows to create a 3D model from a set of digital photos. The tool uses as input a set of photos taken from different viewpoints. It tesselates the vertices and constraint edges from the user input to produce a 3D model that can then be exported to different 3D formats. The 3D models can also be displayed on the Web, using the ActiveX applet ArBaWebViewer that comes with the software.

The Solar Model is realtime modeling of solar system. It allows user to navigate in space, to control time counting (speed-up time flow) and estimate real movement of space bodies like planets, dwarf planets and moons. It also allows user to bind camera to space objects (for example, you can look from Moon on Earth in real time flow). Solar Model renders beautiful 3D space environment.

LeoCrystal is an application for performing modeling of reaction on the surface of crystal for educational and research purposes. With it help one can estimate influence of different parameters of the structure elements of crystals on topology and kinetic of the crystallization. Because process of crystal growth is present in practically all major technology processes, in depth understanding of all its complexities is essential necessity.

OkMap help you to: Calibrate raster maps, Create own vectorial maps, Display simultaneously raster maps and vectorial data, Import digital data, Create on maps waypoints, routes and tracks, Use digital terrain models, Works with GPX format, Upload and download to and from a GPS device, Navigate in real time, Make conversions between coordinates, datums, formats, etc.., Use a handy calculator, Many other things...

Marilou Robotics Studio is a modeling and simulation environment for mobile robots, humanoids, articulated arms and parallels robots operating in real-world conditions that respect the laws of physics. In a realistic graphical environment, Marilou lets you create the hierarchy necessary for building and testing even the most complex assemblies from scratch, with a real-time simulator that lets you experiment with the behavior of your algorithm.

Cadifra UML Editor is a fast and lightweight UML diagram editor for Windows 2000, XP and Vista. Can embed diagrams in Microsoft Word (and others). Unlimited undo/redo without exceptions (limited only by memory). Implements full Windows Drag&Drop. Produces high quality diagrams (no arrows piercing boxes) while still very easy to use. No Code Generation.

VizUp Reducer Professional enables you to reduce the number of polygons in a complex 3D model while retaining the quality and appearance of the original. The end result of the reduction is a 3D model with a well-balanced level of details and size, which is perfect for the use in virtual reality and real-time visualization systems. Supports Wavefront .OBJ, VRML 2.0/97 and StereoLitho (.STL) file formats.

Terrain for Rhino is a terrain modeling plug-in for Rhinoceros (commonly known as Rhino). This plug-in gives Rhino the ability to create a terrain mesh from a set of unordered points. The terrain mesh is created as a Delaunay Triangulation, which is regarded as the best method to create a terrain mesh from unorganized point data. Terrain for Rhino is powered by PointLib, a state of the art terrain modeling library developed by SYCODE.

Terrain for AutoCAD is a terrain modeling plug-in for AutoCAD. This plug-in gives AutoCAD the ability to create a terrain mesh from a set of unordered points. The terrain mesh is created as a Delaunay Triangulation. Terrain for AutoCAD can also import a set of points from a text file containing point coordinate data along with point numbers and point descriptions.