: 2021 saw the continued growth of the "Legion" subscription, where users pay an annual fee to access the full database and support the legal defense of 2D and 3D firearm file sharing. Key Features and User Experience Search and Categorization
: One of the repository's strengths is hosting "official" versions of files. Unlike decentralized platforms, DEFCAD aims to provide the most updated, safety-tested iterations of popular designs. Community Integration defcad files repository 2021
Many assume 3D-printed guns are simple plastic shapes. However, the 2021 DEFCAD archive contained a high level of engineering detail. An analysis of the DefCad archive noted that most of the files used the , which contain critical information about part assembly and part geometry, rather than just the surface triangulation of STL files. The repository also included interchangeable formats like STEP and IGES for precision work, which are far more suitable for CNC milling and professional gunsmithing. : 2021 saw the continued growth of the
expanded its repository beyond firearms, noting an "explosion in popularity" for DIY night vision housings (NVGs) in mid-2021, which could be built for under $1,000 3. Legal and Regulatory Landscape Everytown Lawsuit : On October 22, 2021, Everytown for Gun Safety Community Integration Many assume 3D-printed guns are simple
The legal chaos of 2021 didn't end in April. The Bureau of Industry and Security (BIS), which oversees the CCL, sent Defense Distributed an enforcement letter on June 1, 2021, concerning the 3D-printed gun files. The DEFCAD blog described this move as "lawmaking by FAQ," accusing the government of subverting Congress' power through bureaucratic fiat.
The 2021 repository reignited the perennial debate.