HMX Aster

Quick Summary

The HMX Aster is a budget linear that punches above its sub-thirty-cent price. Built on the Cheese V1 foundation and refreshed with HMX’s modern tooling and a cleaner factory lube, it pairs a smooth 42g linear stroke with a bright, clacky housing voice. It’s an easy recommendation for anyone wanting a lively, ready-to-type linear without spending boutique money.

Specs and Feel

Asters are a medium-light linear: 42g of actuation force, a 48g bottom-out, 2.0mm of pre-travel and 3.6mm of total travel. That slightly shortened total travel gives the keystroke a snappy, planted feel that suits faster typists. The single-stage 22mm spring keeps the return crisp and even from top to bottom.

Smoothness is the headline. The LY stem on the L1 mold glides with no perceptible scratch through the stroke, and the factory lube is applied evenly rather than the gummy over-application that plagues cheaper switches. Stem wobble is well controlled in both directions, with only the faint N/S play typical of MX-mount linears.

The PA12 top and PA-2 bottom housings push the sound brighter and clackier than the deeper poke of older HMX linears. Expect a rich, higher-pitched clack with a clean bottom-out and little of the hollow rattle you’d fear at this price.

Tuning

These don’t need tuning to perform. The stock lube and tight tolerances mean they’re satisfying straight from the bag. If you’re a tinkerer, a light hand-lube pass and switch films will tighten the housing fit and add a touch of weight to the sound, but treat it as polish on an already-good switch rather than a rescue.

Verdict

Buy. The HMX Aster delivers genuinely smooth, factory-ready linears with a distinct clacky personality for budget money. It’s a strong pick for a first lubed-linear build, a high-volume restock, or anyone who likes a bright, energetic sound. Skip only if you want a deep, muted, thocky profile. The Aster leans the other way on purpose.