MMD Princess Linear Mechanical Keyboard Shaft Body with Custom Spring Options

The MMD Princess linear axis represents a specialised component for mechanical keyboard enthusiasts seeking precise control over their typing experience. Designed for DIY builders and custom keyboard projects, this shaft body offers a range of trigger pressures from 38gf to 60gf, allowing users to tailor the actuation force to their specific needs. Whether you prefer a lighter touch for rapid gaming inputs or a heavier press for deliberate typing, the available weight options provide the flexibility to optimise your setup without compromising on the smooth linear feel.

Features and Construction

This mechanical switch component is engineered with a focus on consistency and durability, utilising an extended spring design to maintain stable performance over extended use.

Material and Build

The construction features a robust plastic housing that protects the internal mechanisms while ensuring compatibility with standard mechanical keyboard PCBs. Inside, a metal spring with a 0.23mm wire diameter provides the necessary tension for the linear action. The internal contacts are made from conductive metals to ensure reliable signal transmission with every keystroke. The distinction between artificial run and factory run options refers to the specific lubrication and finishing processes applied during manufacturing to achieve different levels of smoothness.

Size and Practical Fit

With a total travel distance of 3.6mm and a trigger point at 2.0mm, this shaft fits the standard profile for most mechanical keyboards. The 20.4mm extended spring length is a key differentiator, offering a longer range of motion that can reduce fatigue during long typing sessions. The compact form factor of the shaft body ensures it sits flush within the keyboard case, maintaining the aesthetic integrity of your build while delivering professional-grade performance.

Uses and Placement

Ideal for both gaming and professional typing environments, the MMD Princess shaft allows for granular control over input sensitivity.

Event or Professional Use

In competitive gaming scenarios, the ability to select a lower trigger pressure like 38gf or 45gf can result in faster reaction times. The linear nature of the switch means there is no tactile bump to slow down double-tapping, making it excellent for rapid-fire actions in FPS or MOBA games. For data entry professionals, the heavier 55gf or 60gf options can help prevent accidental keystrokes, ensuring accuracy in high-volume typing tasks.

Everyday Home Use

For general home use, the MMD Princess shaft offers a way to rejuvenate an old keyboard or build a custom one from scratch. The smooth linear action is versatile enough for writing documents, browsing the web, or creative work. By choosing the appropriate weight, users can create a typing experience that feels uniquely theirs, reducing strain and improving overall comfort during daily computer use.

Benefits and Buying Value

Investing in high-quality individual shafts allows for targeted upgrades rather than replacing an entire keyboard.

Reuse and Low Maintenance

The durable construction of the MMD Princess shaft means it can withstand millions of keystrokes. The extended spring design helps maintain consistent tension over time, reducing the likelihood of spring ping or inconsistency. Since the product is sold as a single shaft body, it is easy to replace individual faulty switches or experiment with different weights on specific keys without a major overhaul.

Why Choose This Product

The primary advantage lies in the specific combination of the 20.4mm extended spring and the wide range of available trigger pressures. Unlike generic switches that offer a one-size-fits-all approach, this product caters to enthusiasts who understand the nuance of grams-force and travel distance. The option to choose between artificial and factory run finishes further allows users to dial in the exact smoothness they desire.