• Orbituary@lemmy.world
    link
    fedilink
    English
    arrow-up
    3
    ·
    2 months ago

    Not manufacturing defects. They correct the natural tendency of wood to change shape with temperature and humidity.

    Kay and other companies used stiff bars of non-adjustable steel in the neck to keep them from warping, but results were mixed.

    Truss rods let you fix and adjust to different climates and conditions.