# Parameters for Cylinder Gears (Spur or Helical)

This section provides detailed information for the parameters that are used when measuring and analyzing cylinder gears. These can be either spur or helical gears. See the "Getting Started" section for the steps for using PC-DMIS Gear. The following topics provide information for cylinder gears:

- Defining a Cylinder Gear

- Aligning a Cylinder Gear for a CMM

- Aligning a Cylinder Gear for a Vision Machine

- Editing Measurement Parameters for Cylinder Gears

- Analyzing a Cylinder Gear