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DEFCAD began as a repository where users could upload and download CAD models, but quickly became a community with the addition of an IRC channel and public forums. The site has had over 2,500 community users and offered access to over 100,000 models in its history.
This is a list of models and meshes commonly used in 3D computer graphics for testing and demonstrating rendering algorithms and visual effects. Their use is important for comparing results, similar to the way standard test images are used in image processing .
FreeCAD is a general-purpose parametric 3D computer-aided design (CAD) modeler and a building information modeling (BIM) software application with finite element method (FEM) support. [4] It is intended for mechanical engineering product design but also expands to a wider range of uses around engineering, such as architecture or electrical ...
GrabCAD evolved into a community for engineers to share CAD models and moved its HQ to Cambridge, MA in 2011. According to the company site, GrabCAD was founded with the goal of bringing together all the tools engineers need to manage and share CAD files into one platform. [2] On September 16, 2014, GrabCAD was acquired by Stratasys. [3]
Defense Distributed is an online, open-source hardware and software organization that develops digital schematics of firearms in CAD files, or "wiki weapons", that may be downloaded from the Internet and used in 3D printing or CNC milling applications. [2]
LeoCAD is developed and released by Leonardo Zide around 1997 under GPL v2 free and open source software license. [9] Its written in C++ and uses Qt as GUI. [10] At first it was a standalone CAD software with its own brick library, but soon it was updated to adopt the LDraw library and file format, an unofficial Lego parts collection that was very popular at the time. [11]