Lead Check

Once a gear is defined and the reference frame has been established, we can configure and teach a Lead Check into the program database. The Lead Check will evaluate a gear lead by measuring points in a line along the face width at a predefined "Check Diameter." It will then output a report to help evaluate the data relative to the gear definition.

Teaching Lead Check

Output File - Name the report output file for the Lead Check.

Check Diameter - The diameter at which the lead lines are measured.

Touch Points - The number of points (per tooth) that make up the measured lines.

Tooth Count - The number of teeth that will be evaluated with the Lead Check. This is a dropdown with options to check up to 4 teeth per Lead Check.

Tooth Numbers - The tooth numbers that will be measured with the Lead Check relative to the first tooth. The number of teeth to define will be dependent on the Tooth Count drop down configuration.

Create Graphical Report - Check this box to create a supplemental Graphical Report to help visualize the Lead Check measurement results. If checked, you will need to name this report individually.

Smooth - This is a Graphical Report parameter. Check this box to make curves smoother by interpolating measurement data.

Mark - Check this box to place a cross mark in the display to indicate a data point for the Lead Check.

Reporting Lead Check

Below is an example graphical report for lead check.

The X-axis is the face width in percentage.

Y-axis shows the lead deviation for left & right flanks of each tooth measured. Please note that positive and negative directions are inverted for left and right flanks.

Distance between horizontal dashed lines in the graph represents amount of lead deviation indicated in the title.

Points from the lead check are available in Feature Database for additional analysis such as Cloud-to-CAD. Furthermore, a text file containing the raw data output will be saved in C:\ProgramData\QxSoft\CMM-Manager ####\Gear (#### is the version of your CMM-Manager).