3D2A CAD Design with Chairmanwon

Brandon Herrera launches the 'Brass Valley' project, aiming to innovate firearm design by assembling a team of young, skilled individuals. The first episode focuses on the challenges of the AK-50 V1 prototype, specifically its problematic bolt carrier design. The team is tasked with redesigning the cam lug and groove for the AK-50 V5 prototype, incorporating a roller bearing solution to address stress and deformation issues.

This video documents the ambitious build of the AK-50, a .50 BMG AK-style rifle, by Brandon Herrera and his team. It highlights the extensive process from CAD design and CNC machining of steel components to crucial gunsmithing collaborations for mechanical challenges. The project emphasizes heat treating for durability and culminates in successful test fires, proving the concept of a .50 BMG rifle cycling under its own gas power.

This YouTube Shorts video showcases the ongoing design process for an AR lower receiver, indicated by the title "AR Lower Design In Progress" and the use of hashtags like #cad and #design. While no specific firearm model or caliber is explicitly mentioned, the focus on AR lower design strongly implies a connection to the AR-15 platform and the related fields of firearm engineering and manufacturing.

This YouTube live stream features Evan Jones discussing and developing a DIY flywheel delayed blowback rifle. The description also mentions his involvement in 3D2A (3D Printed Firearms) development and building an airplane, suggesting a broad range of technical and engineering interests.

This video demonstrates the catastrophic failure of a 3D printed AK-47 receiver when attempting to fire a 7.62x39mm round. The experiment highlights critical design differences between AK and AR-15 platforms, explaining why the AK's locking lug system places immense stress on a receiver material unsuitable for 3D printing. The test concludes that 3D printing an AK receiver with current technology is not feasible due to material limitations and design stresses.

This video provides an introductory guide to designing and implementing built-in supports for 3D printing, specifically within the context of firearm lower receiver designs. The creator outlines fundamental techniques for creating custom integrated supports, covering aspects such as controlled bridging, support stubs, overall support structure, line width considerations, detailed support structure design, and overhang management. A specific application is demonstrated with "Glock Support." The focus is on enhancing 3D printing success for complex firearm components.

The Ounce Pistol is demonstrated for its rapid-fire capabilities on steel targets. The video details its unique loading procedure via a side door for its 10+1 capacity .22 LR internal magazine and its folding mechanism for concealment and deployment. Expert handling showcases the firearm's specific mechanical nuances.

Hoffman Tactical introduces the 'Super Safety,' an innovative active trigger reset system for the AR-15 platform. This push-button system replaces the standard safety selector and offers a unique 'Active Reset' mode that mechanically resets the trigger during bolt cycling, significantly reducing split times. The system is open-source and 3D-printable, with recommendations for specific materials like Polymaker PA12-CF for durability.

This video details the process of 3D printing firearm components, specifically AR-15 lowers, using carbon fiber nylon. It covers essential filament preparation, necessary printer hardware upgrades like all-metal hot ends and hardened nozzles, and critical print settings including specific temperatures for the nozzle and bed. Advanced slicing techniques and post-processing steps are also discussed to ensure successful and durable prints.

The Altor pistol is a unique semi-automatic, long-stroke recoil-operated firearm chambered in .22 Long Rifle, distinguishing itself from typical blowback-operated .22 caliber handguns. It features a 10-round fixed magazine located on top of the receiver, making its internal mechanics particularly fascinating for firearm enthusiasts.