The Design of Sachiel's 85% TKL Layout

In the world of KBDcraft, every build is a dual construction of both structure and soul. We believe that a keyboard is not just a tool for input, it’s the most intuitive and intimate connection between humans and machines. At this point of connection, every block, every structure, and every click is laying the foundation for a deeper interaction experience.

Sachiel, our newly launched 85% TKL modular mechanical keyboard, is the ultimate embodiment of this philosophy. It’s an exploration where style and functionality deeply unite. From the fine-tuning of the base architecture to the angular cuts of the shell, every detail reflects our relentless pursuit of the “beauty of assembly” and “mechanical soul.”

Sachiel redefines the boundary between modular design and mechanical innovation. It’s a thought experiment in the form of a mechanical lifeform. All you have to do is assemble it, awaken it, and you’ll enter into a ritualistic keystroke experience of the future.

This is not just any 85% layout; it’s our boldest, most complex structural challenge yet. From the shell structure to the internal skeleton, every aspect screams: “Born for battle.”

Combat-Ready Framework, Precision in Every Component

The 85% TKL shell of Sachiel is the most intricate and largest single-unit structure we’ve ever created. We’ve abandoned the traditional curved sloping edges and boldly adopted sharper angular designs. This shift isn’t a random stylistic choice but rather comes from a deeper visual inspiration—the “Type-90 Main Battle Tank” used by humanity to fight the Angels in Neon Genesis Evangelion.

This real-and-fiction hybrid of a weapon is a symbol of human will. It’s heavy, low-slung, rigid, and angular—its design language has no hesitation or softness, only decisive combat and the coldness of survival. This is precisely the core spirit we wanted to convey with the design of the Sachiel shell: unyielding, restrained, yet ready for action at any moment.

We’ve made every slope sharper, not just for mechanical support but to inject it with a tension from the edge of the battlefield. Sachiel is no longer a gentle desktop tool; it stands like a sealed machine, quietly waiting but ready to be “activated” at any time.

Its shell no longer conforms smoothly; instead, a series of sharply cut angular lines carve out a bionic-mech-like stance. You’ll feel the rigidity of its structure during assembly, and every keystroke after the build will sound like a suppressed low hum, reminiscent of distant tank treads or the reverberation of steel in battle.

In this process, form and function reach a perfect union:

• The harder edges bring improved stability,

• The sharper geometry gives it a more intense presence.

This is more than just design language—it’s an attitude. We’re not just building a keyboard; we’re crafting the presence of a mechanical lifeform.

Core Evolution: The Third-Generation Adaptive Spacer System

If the shell is the armor, then the internal spacer structure is the skeleton and nervous system of this machine.

In Sachiel, we’ve introduced the third-generation Adaptive Spacer Installation System for the first time—an evolution that spans from Adam to Lilith Q.

It absorbs feedback without being sluggish; it’s elastic without being loose. Each keystroke is a collaborative response, not an isolated reaction.

The assembly process remains smooth and effortless, with precise modular click points like a high-precision assembly platform—snapping into place seamlessly. And when you’ve completed the build and press that first key, you’ll feel a familiar yet distinct tactile language resonating through your fingertips—it’s not just a typical rebound; it’s a sensation as though the “machine has been activated.”

We’ve tested it through tens of thousands of keystrokes to ensure that after long-term use, it maintains its high precision and stability. It won’t loosen, it won’t tilt, it will just quietly obey, synchronizing perfectly.

You give the command; it responds instantly.

The Moment of Perfect Synchronization

The birth of Sachiel is the ultimate challenge for a modular system, a fusion of keyboard aesthetics, structure, and battle-ready spirit. We didn’t create it just to “make a new layout”; we did it to prove one thing:

A mechanical keyboard can also have form, soul, and moments of synchronization—just like an EVA unit.

When you assemble it, you’re not just completing the build, you’re completing the connection.

If you love angular, uncompromising designs, if you believe that assembly is not just a game but a form of creation— then you and Sachiel are destined to meet.