• Surface Texture: From 'Hand-Polished Feel' to 'Industrial-Grade Mirror Finish'

Old 3D Printed Polished Blades:
Although hand-polished, traces of 3D printing layers are still faintly visible. The metal texture leans more toward a 'vintage distressed' style. The edge texture is uneven, and even after polishing, it only achieves a semi-matte effect. Up close, minor polishing imperfections can be seen.

New CNC Process Blades:
The advantage of CNC one-piece molding is fully realized! There are no layer marks on the surface, and the metal surface has a uniform and delicate luster, even reflecting subtle light and shadows. Details that previously required hand polishing (such as handle patterns and hollow designs) are precisely reproduced, and edges are handled cleanly without any burrs.

•  Detail Accuracy: From 'Approximate Reproduction' to 'Millimeter-Level Replication'

Model Fidelity:
The old 3D-printed hollow eagle pattern had slightly rough and deformed edges, and the circular holes on the blade were uneven in size; whereas the new CNC-crafted version features sharp and smooth lines in the eagle pattern, with every circular hole having a perfectly consistent diameter, taking the fidelity to the game design up a notch.
Structural Fit:
Due to 3D printing tolerances, the old version required repeated sanding and adjustments to fit the wrist blade casing, often causing jams during installation; the new CNC blade fits the casing seamlessly, making both sliding and locking extremely smooth, eliminating the need to repeatedly modify parts for fitting.

• Durability and Strength: From 'Fragile Sentiment' to 'Combat-Ready Model'

The old 3D-printed and polished version, despite being metallized, had a plastic base, making it easy to scratch during regular handling and at risk of breaking under slight force, suitable only as a static display piece.
The new CNC blade is made from real metal, with hardness and wear resistance far surpassing the old version. It can withstand regular handling and simulated popping actions without worrying about damage, even tolerating some force, finally ending the era of fragile display items that you fear to touch.

Finally, I want to say: Passion deserves better craftsmanship. From 3D printing to CNC, it is more of an advancement in my love for this craft than just an upgrade in technique. The old 3D-printed blades carried my initial enthusiasm for DIY; the new CNC blades, however, make this passion a more real and tangible presence.