Generate Variations
Because HoleRad is defined as a "value" parameter, and both SlotWid and SlotLen can be resolved from it, you need only change the value of HoleRad to generate variations. Use the parameter value table to do this:
1. Click Parametric and then, in the Show group, click 
Current.
Current.The Current Constraints dialog box opens.
Only parameters defined as "Value" parameters appear in the parameter value table.
2. Click the HoleRad entry.
3. Click the parameter value entry text box.
4. Type 425 and click Apply.
5. Click Parametric and then, in the Solve group, click 
No Keep to create the variation.
No Keep to create the variation.6. Click 
OK to accept the variation.
OK to accept the variation.As you can see, the dimensions of the slots now change with the hole radius. Input several different values for HoleRad now.