Mechanical bracket supporting Z-axis components.

Worm-drive mechanism used for Z-axis positioning.

Lead screw controlling Z-axis mechanical movement.

Sensor measuring or detecting Z-axis position.

Structural support for Z-axis hardware.

Linear toothed component for Z-axis motion.

Mechanical guide supporting Z-axis movement.

Difference between reference and actual Z-axis positions.

Structural assembly supporting Z-axis movement.

Small gear engaging a rack.