Assassin's Creed Hidden Blade: A CNC Craftsmanship Journey of Half a Year

May 20, 2026 by MyHiddenBlade

1: Blade Aesthetics Polished Over Half a Year

These six blades symbolize the evolution of the same design through different stages. From the original prototype with a brass texture to the final version with a mirror-polished, matte gray appearance, every surface treatment, edge detail, and dragon engraving has been meticulously refined repeatedly. Even the serrated edges, blade holes, and the shape of the dragon head at the tip have undergone continuous CNC path optimization and manual adjustments, transforming the lines on the drawings into a tangible, substantial 'hidden blade' that combines presence and texture.

 

2: The Precise Skeleton of the Overall Frame
 
The three aluminum plates in this photo form the "skeleton" of the hidden blade. The top plate already incorporates the spring, gear, and wire traction mechanism. The CNC-machined slots, guide rails, and mounting holes are controlled within an error of 0.02mm, ensuring the blade slides smoothly in the chute without jitter or jamming. The middle hollow cover plate and the bottom closed base plate are tightly fixed together with screws, leaving no unnecessary gaps—this is the power of precision machining.
 
 
3: Mechanical Romance in a Micro Perspective
 
These two small parts are the "heart" of the hidden blade. The spring-loaded plectrum and locking structure determine whether the blade pops out and retracts crisply. Their right angles, inclined surfaces, and pivot holes are all formed in one go by CNC, with no traces of manual grinding. The tension of the spring, the angle of the plectrum, and the engagement depth of the lock have all been tested repeatedly to achieve the classic hidden blade function of "press once to pop out, press again to retract".
 
 
 4: The Ultimate Display of All Components
 
When all parts are laid out in front of you, you can intuitively feel their complexity: different versions of blades, different colored gears, the main frame, springs, steel wires, locking parts... Each part has its own tolerance and fit relationship, and an error in any one part will cause the entire mechanism to fail. This is not a simple assembly of parts, but a complete mechanical system. From design, programming, and machining to assembly, every step challenges the limits of precision manufacturing.