QCAD
                
                QCAD is a free, open-source application for computer-aided drafting (CAD) in two dimensions (2D). With QCAD you can create technical drawings such as plans for buildings, interiors, mechanical parts or schematics and diagrams. QCAD works on Windows, macOS, and Linux. The source code of QCAD is released under the GPL version 3 (GPLv3), a popular Open Source license. QCAD was designed with modularity, extensibility and portability in mind. But what people notice most often about QCAD is its intuitive user interface. QCAD is an easy-to-use but powerful 2D CAD system for everyone. You don't need any CAD experience to get started with QCAD immediately. Construction and modification of points, lines, arcs, circles, ellipses, splines, polylines, texts, dimensions, hatches, fills, and raster images. Very complete and extremely powerful ECMAScript (JavaScript) scripting interface. Various powerful entity selection tools.
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                BeckerCAD
                
                Professional CAD software for architecture, mechanical engineering, electrical engineering and much more. Detailed drawing, designing and modeling in 2D and 3D. Powerful, precise and 100% compatible with AutoCAD. May be installed on 3 PCs. Whether you are engaged in mechanical engineering, electrical engineering or architecture, BeckerCAD12 3D Pro enables you to design and model detailed 2D and 3D models. The wide range of drawing, editing and labeling tools helps you to accurately create objects ranging from 2D production drawings that are true to size up to rendered 3D visualizations. Complex 3D graphics can be easily imported in order to create impressive presentations. BeckerCAD12 3D Pro has a programming interface with Python and is fully compatible with AutoCAD and CADdy++ Mechanical Design. Realistic scene preview through improved light sources with advanced settings options. Adoption of object colors, material properties, etc., from graphics and saving bills of materials.
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                CorelDRAW Technical Suite
                
                Expand what’s possible in visual communication with CorelDRAW® Technical Suite 2021, a comprehensive collection of applications for high-impact technical design and documentation. Experience a seriously streamlined workflow with professional tools that accelerate productivity and deliver precision results. Import 3D data or start from scratch to create accurate product drawings, schematics, and interactive spare parts pages with specialized technical illustration tools. When it’s time for feedback and approval, next-generation collaboration features keep everyone on the same page in real-time, and publishing couldn’t be more confident, thanks to industry-standard compliant output. From manufacturing and engineering to architecture and high tech, CorelDRAW Technical Suite is the ultimate hub for designing detailed technical illustrations, documentation, marketing, and more, with total control and incredible efficiency. 
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                DesignCAD
                
                DesignCAD 3D MAX is a versatile, easy-to-use 2D/3D CAD tool that's perfect for novice designers, but powerful enough to create high-quality designs, models and animations. It's everything you need to design anything, from simple hobby projects to professional precision drawings. Award-winning 2D/3D CAD Solution. Easy Rendering & Animation. Intuitive User Interface. Extensive Online Help. Windows 64-bit & 32-bit compatible. AutoCAD® & SketchUp® Read/Write File Filters. What’s New ? This latest release offers several new features, including: support for AutoCAD 2020 drawing files; PDF underlay support, a Line Distance tool, Best Fit Circle and Line tools. Adobe Illustrator (AI) import and ability to use as an underlay, 3D Print Check tool, and SketchUp 2020 Import and Export. Perfect For:  Design everything from furniture, decks, floor plans and architectural drawings to engineering layouts, electronic schematics, plats, maps, elevations and even toys for hobbies. Architects,  Engineers
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