Re-open the original Beam Expander Prior to Tolerancing.zmx  file, and open up an OPD plot, configured as follows:




We will use this in conjunction with the Monte-carlo feature soon. Then, re-open the tolerancing dialog box. Press RESET to undo the changes we made and restore the default settings. The Set-Up tab shows:



The 'Mode' setting controls the tolerancer as follows:

Sensitivity mode computes the change in the tolerancing criterion (merit function) for each of the extreme values of the tolerances. The tolerancing criterion is defined on the next tab, labelled 'Criterion'

Inverse Limit computes the value of each tolerance that will yield a criterion equal to the value specified by the Limit parameter on the Criterion tab. Inverse mode will change the min and max values of the tolerance operands.

Inverse Increment computes the value of each tolerance that will yield a change in the criterion equal to the  value specified by the Increment parameter on the Criterion tab. Inverse mode will change the min and max values of the tolerance operands.

Skip Sensitivity will bypass the sensitivity analysis and proceed to the Monte Carlo analysis.

We will not discuss the other parameters in this dialog box in this article. Consult the User's Guide for more details.

For the purposes of this article, select the Mode as 'Sensitivity', and then move to the Criterion tab.