This back-lock folding knife references the structural design of the Cold Steel SRK (Survival Rescue Knife). The model requires zero supports during printing. Assembly needs no tools, adhesives, or hardware - components snap together through precision interlocking.

Project Background:
My ongoing research focuses on developing 3D-printable folding knife locking mechanisms that are simple, efficient, and durable.

Key Design Requirements:

The locking mechanism maintains natural state in both closed and locked positions without compression deformation - critical as 3D printed materials lose elasticity under sustained stress.

No Z-axis force bearing capacity - compensates for weak interlayer adhesion in FDM printing.

Print-optimized architecture with seamless integration for other 3D printed components, enabling support-free, hardware-free, and glue-free assembly.

Development Status:
This project represents a successful milestone achieving all specified criteria. Ongoing research will produce additional folding knives with various locking mechanisms in the near future.

Assembly Tutorial (Visual Guide):