Disc drive servo writer support assembly

A servo writer support assembly supports a disc drive storage device relative to an orthogonal coordinate system comprising X, Y and Z axes during servo writing. The support assembly includes a support body, a yaw registration feature, a pitch registration feature and a locating post. The yaw registration feature is engageable with the disc drive storage device for limiting rotation of the disc drive storage device about the Z axis. The pitch registration feature is engageable with the disc drive storage device for limiting rotation of the disc drive storage device about the X and Y axes. The locating post extends from the support body parallel to the Z axis and includes a registration surface having a tangent that is oblique to the Z axis. The registration surface is engageable with the disc drive storage device for limiting translational movement of the disc drive storage device along the X, Y and Z axes.