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CHIMERA — Q9 Reimagined
$50.00 USD $50.00 USD
Shipping calculated at checkout.
Description

The Chimera is an open-source RP2040-based replacement PCB for the Keychron Q9. It drops right into the stock Q9 case but opens up layout options the original PCB doesn't support, with way more flash memory for advanced firmware features. We build and sell these because we love the Q9 form factor and wanted to push it further — and we think you'll love what it becomes with better brains inside.

Every Chimera PCB ships pre-flashed with either our QoL firmware or the standard VIAL build.

Capabilities & Process

Bambu Lab H2S 3D printer with filament spools on a dark background

Operations

Evil Engineering operates a fully enclosed, heated-chamber production environment built around Bambu Lab H-series printers — industrial-class machines capable of processing the full range of engineering thermoplastics from PETG through polycarbonate, nylon composites, and carbon fiber reinforced materials.
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Our Facility

Our facility includes dedicated filament drying equipment capable of reaching temperatures up to 110°C, supporting the extended drying cycles that high-performance materials demand — some of our nylon composites undergo 12–16 hours of controlled drying before they ever touch a print head. For materials that benefit from post-print heat treatment, we run controlled annealing schedules tailored to each specific polymer to maximize crystallinity, relieve internal stresses, and achieve the material's full rated mechanical performance.
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Finishing Capabilities

Finishing capabilities include a purpose-built acetone vapor smoothing chamber with activated charcoal filtration for ABS products, rotary tumbling with ceramic media for edge finishing and surface refinement, and precision hand tools for detail work. Our build surface library includes specialty plates — G10 Garolite, carbon fiber composite, and application-specific coatings — selected to match each material's adhesion requirements and deliver consistent first-layer quality across production runs.
Our Commitment to Quality

Evilly Over-Engineered

Evil Engineering follows all manufacturer recommendations for material handling, processing temperatures, drying protocols, and post-processing procedures. Where our own testing has identified opportunities to exceed those recommendations — longer drying times, optimized annealing schedules, material-specific build surfaces — we adopt the more rigorous process.

We believe that 3D printed parts have earned a reputation for fragility not because the technology is limited, but because too many producers skip the preparation, environmental control, and post-processing that engineering materials require. We don't skip steps. Every spool is dried. Every chamber is heated. Every material gets the process it was designed for. The result is parts that perform to their rated specifications — not parts that happen to be the right shape.

Materials Guide
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The Devil's in the Details

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