HMX Martini Linear Switches

This linear switch suits users who want a smooth typing experience with a longer key travel and a clear bottom-out feel. It fits custom keyboard builds where sound, feel, and build quality matter. The switch has no tactile bump or click, making it suitable for those preferring consistent, uninterrupted key presses.

Feel & Sound

The switch offers a fluid keystroke with a defined bottom-out, which helps users sense when a key press is complete. Its longer travel distance provides a more deliberate typing rhythm. Factory lubrication on the leaf and spring reduces scratchiness, contributing to a quieter and smoother sound profile. The stem and housing are mostly unlubed, which may affect smoothness slightly.

Actuation Characteristics

It requires moderate force to actuate, balancing responsiveness and fatigue. The total travel is longer than many linear switches, which some users may find more comfortable for typing but less suited for rapid key presses. The bottom-out force is slightly higher than the actuation force, giving a noticeable stop without being harsh.

Build Quality

The housing uses durable nylon variants, providing stability and reducing stem wobble. The stem employs a long-pole design, which can enhance smoothness and reduce friction. A single-stage spring of moderate length supports consistent force throughout the key press. Factory lubrication on the leaf and spring helps reduce spring noise and initial scratchiness.

Compatibility & Modification

The switch uses a 5-pin MX-style PCB mount, compatible with most custom keyboards. Factory lubrication means it is ready to use out of the box, though additional lubing or filming (adding thin material between housing parts to reduce wobble) may further improve smoothness and sound. The stem and housing are mostly dry, so users wanting a very smooth feel might consider extra lubrication.

Trade-offs

The longer travel and moderate actuation force may be less ideal for fast-paced gaming where quick key presses are preferred. The stem and housing lubrication is limited, so some users may notice slight scratchiness until further modding. Unknown factors include LED compatibility and hot-swap friendliness.