Autodesk Fusion 360!

SketchUp (formerly Google Sketchup) is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, civil and mechanical engineering, film, and video game design—and available in a freeware version, SketchUp Make, and a paid version with additional functionality, SketchUp Pro.

FreeCAD is a general purpose parametric 3D CAD modeler. The development is completely Open Source (LGPL License). FreeCAD is aimed directly at mechanical engineering and product design but also fits in a wider range of uses around engineering, such as architecture or other engineering specialties.FreeCAD features tools similar to Catia, SolidWorks or Solid Edge, and therefore also falls into the category of MCAD, PLM, CAx and CAE. It is a feature based parametric modeler with a modular software architecture which makes it easy to provide additional functionality without modifying the core system.As with many modern 3D CAD modelers it has many 2D components in order to sketch 2D shapes or extract design details from the 3D model to create 2D production drawings, but direct 2D drawing (like AutoCAD LT) is not the focus, neither are animation or organic shapes (like Maya, 3ds Max, Blender or Cinema 4D), although, thanks to its wide adaptability, FreeCAD might become useful in a much broader area than its current focus.FreeCAD makes heavy use of all the great open-source libraries that exist out there in the field of Scientific Computing. Among them are OpenCascade, a powerful CAD kernel, Coin3D, an incarnation of Open Inventor, Qt, the world-famous UI framework, and Python, one of the best scripting languages available. FreeCAD itself can also be used as a library by other programs.FreeCAD is also fully multi-platform, and currently runs flawlessly on Windows and Linux/Unix and Mac OSX systems, with the exact same look and functionality on all platforms. »

Autodesk® Inventor® products offer a comprehensive, flexible set of software for 3D mechanical design, product simulation, tooling creation, and design communication. Inventor takes you beyond 3D to Digital Prototyping by enabling you to design, visualize, and simulate your products.

SolveSpace is an Open Source 2D and 3D CAD (computer-aided design) program. It is a constraint-based parametric modeler with simple mechanical simulation capabilities. It is developed by Jonathan Westhues.

Onshape is a professional CAD system – Parts, Assemblies, Drawings – with version control and collaboration built in. Each Onshape plan (Free, Professional & Enterprise) gives you all of the CAD and data management functionality with no time limit.

Shapr3D is a revolutionary 3D modeling software created exclusively for your iPad Pro and your Apple Pencil.

ZW3D, an integrated CAD/CAM solution designed for the complete product development process, features the fastest kernel for Solid-surface Hybrid Modeling, non-solid mold parting and smart CNC Machining tactics from 2 axis to 5 axis. It brings customers endless benefits such as reduced costs, optimized design workflow and improved efficiency. ZW3D Versions·Standard·2 Axis Machining·Lite·Professional·Premium·3 Axis Machining·Student

What can you do with PUPPICAD?-Create parametric CAD models based on complex rules or mathematical functions.-Process CAD models and extract data.-Create control panels with visual feedback directly on the canvas.-Optimization and iterative design.-Import and export 3D models in several popular file formats. -Add new program features from an almost limitless source of free modules!

SIMULIA enables collaboration on performing virtual tests and meeting performance requirements. Its portfolio, which leverages proven Abaqus technology provides powerful tools that enable fast, accurate performance studies on parts, assemblies, components and products designed with V6. It also enables organizations to capture their simulation knowledge, deploy approved methods, manage applications and share simulation results to enable collaboration and accurate performance-based decisions.