MMD Princess Shaft linear mechanical keyboard switch with customisable spring weights from 28g to 60g in artificial and factory lubed variants for custom keyboard building enthusiasts
MMD Princess Shaft Linear Mechanical Keyboard Switch with Customisable Spring Weights from 28g to 60g

The MMD Princess Shaft represents a specialised linear mechanical keyboard switch designed for custom keyboard enthusiasts seeking precise control over their typing experience. Unlike standard pre-built keyboard switches, the Princess Shaft offers a comprehensive range of spring weight options from 28g to 60g, allowing users to match their preferred typing force across different applications. Whether you're a fast-paced gamer requiring light actuation or a typist preferring heavier resistance, this switch provides measurable force characteristics with documented actuation pressures ranging from 38gf to 55gf depending on configuration. The linear design ensures smooth, uninterrupted key travel without tactile feedback or audible clicks, creating a consistent keystroke motion from initial press to bottom-out. With both artificial lubed and factory lubed variants available across all weight options, builders can choose their preferred lubrication approach without additional preparation steps.
Features and Construction

The MMD Princess Shaft incorporates several specific technical features that distinguish it within the custom mechanical keyboard market. Unlike general-purpose switches, this model provides documented specifications for each component, including spring dimensions and travel distances that influence the final typing experience. The construction follows standard MX-style switch dimensions, ensuring compatibility with most mechanical keyboard PCBs and keycap sets available on the market.
Material and Build
The switch utilises standard mechanical keyboard switch housing materials common to the industry, designed for repeated keystrokes over extended use. The fundamental component is the 20.4mm extended spring with a precise 0.23mm wire diameter that determines the switch's force characteristics. This extended spring design contributes to the smooth linear travel from actuation point to bottom-out position, providing consistent resistance throughout the keystroke motion. The artificial lubed and factory lubed variants offer different approaches to lubrication, with factory lubed options providing ready-to-install switches while artificial lubed versions may appeal to enthusiasts who prefer to apply their own lubricants.
Size and Practical Fit
The Princess Shaft maintains standard mechanical keyboard MX switch dimensions, ensuring compatibility with the vast majority of custom keyboard PCBs, plates, and keycap sets available on the market. With a total travel distance of 3.6mm and trigger point at 2.0mm, users experience a predictable linear motion that's consistent across all keys in their keyboard build. This standard sizing makes the switch suitable for both full-size keyboards and compact layouts, as the dimensions align with industry specifications for mechanical keyboard components.
Uses and Placement

The MMD Princess Shaft serves multiple applications within the mechanical keyboard community, from gaming setups to typing-focused workstations. The customisable nature of the switch allows users to tailor their keyboard's feel to specific tasks, with lighter springs potentially benefiting rapid-fire gaming and heavier options providing more deliberate typing resistance. The availability of both artificial and factory lubed variants offers flexibility for different builder preferences and skill levels.
Event or Professional Use
For professional settings where consistent typing performance matters, the Princess Shaft's documented specifications provide predictable keystroke behaviour across all switches in a keyboard build. The linear design without tactile feedback or audible clicks creates a quieter typing experience suitable for office environments or shared spaces. The range of spring weights from 28g to 60g allows users to match the switch resistance to their specific workflow requirements, whether that involves data entry, programming, or content creation.
Everyday Home Use
For general home computing, the Princess Shaft offers a customisable typing experience that can be adjusted to personal preference rather than settling for standard switch options. The availability of factory lubed variants provides ready-to-install switches for builders who prefer not to handle lubrication themselves, while artificial lubed options cater to enthusiasts who enjoy the modification process. The linear design without tactile feedback creates a smooth typing rhythm for extended sessions of web browsing, communication, or casual gaming.
Benefits and Buying Value

The MMD Princess Shaft provides value through its customisation options and documented specifications, allowing users to make informed decisions about their keyboard build. Unlike many pre-lubricated switches that offer limited weight options, this model provides a comprehensive range from 28g to 60g across both lubrication variants, giving builders greater control over their final typing experience.
Reuse and Low Maintenance
As a mechanical switch component, the Princess Shaft is designed for longevity within custom keyboard builds, with the potential for removal and reuse in future projects if desired. The availability of factory lubed variants reduces maintenance requirements for users who prefer not to handle lubrication themselves, while the artificial lubed options allow for periodic re-lubrication as part of keyboard maintenance routines. The standard MX dimensions ensure compatibility with future keyboard components, protecting your investment as you upgrade other parts of your setup.
Why Choose This Product
The Princess Shaft distinguishes itself through its comprehensive range of documented spring weights from 28g to 60g and dual lubrication options, providing custom keyboard builders with measurable choices rather than subjective descriptions. The linear design offers consistent keystroke motion without tactile feedback or audible clicks, creating a predictable typing experience across all keys. With precisely documented specifications including 3.6mm total travel, 2.0mm trigger point, and actuation forces from 38gf to 55gf, users can make informed decisions based on technical data rather than marketing claims.



