Custom Keyboard Science: Case Guide

Custom keyboards typically feature three primary case materials: aluminum alloy, acrylic, and wood. Supplementary materials include PC (polycarbonate), stainless steel, copper, and titanium.
aluminum alloy
acrylic
wood

Case Materials:

① Aluminum Alloy
Commonly uses 6063 Aluminum Alloy, nicknamed "Aluminum Tank" in Chinese communities.
Properties: High wear resistance, corrosion resistance, excellent oxidation performance, and plasticity.
Manufacturing: Primarily CNC-machined.
 
② Acrylic
Advantages: Low cost, easy dyeing, simple processing (ideal for beginners).
Disadvantages: Prone to yellowing and warping.
Technique: Usually stacked layers to form cases. CNC acrylic costs more but offers higher strength and better performance.
 
③ Wood
Common types: Walnut, Cherry wood, Beech, Ash (CNC-shaped into "Wood Tanks").
Price range: Between acrylic and aluminum cases.
User-friendly for newcomers.

    Manufacturing Techniques:

    ① CNC (Computer Numerical Control)
    Process: Precisely cuts and carves solid material blocks.
    Outcome: High-accuracy production.
     
    ② Die Casting
    Process: Injects molten metal into molds under pressure.
     
    ③ Forging
    Simplified explanation: "Think of a blacksmith hammering iron – that’s forging!"
     
    ④ Stacking (Acrylic-Specific)
    Process: Layers acrylic sheets secured via screws or joinery to form cases.

    typing Angle:

    Custom keyboard kits have fixed angles (no adjustable feet).
    Definition: Refers to the typing incline.
    Common angles: 6°, 7°, 8°.

    Surface Finishes:

    Anodizing 
    Grit levels (e.g., 180/200): Indicates sand particle size – affects texture and feel.
    Process: Creates oxide layer on aluminum to absorb dyes.
    Traits: Strong metallic gloss, smooth finish, limited colors, high scratch resistance
    Electrophoretic Coating
    Process: Uses electric fields to deposit paint film.
    Traits: Ultra-smooth, diverse pastel colors, prone to scratches 
    Spray Coating 
    Process: Directly sprays liquid/powder coatings.
    Two subtypes:
    Sandblasted PVD: Blasts surface with fine grit → PVD coating (matte texture).
    Mirror PVD: Polishes surface mirror-smooth → PVD coating (requires flawless base).
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