Click the PathFinder tab.
In the top pane of PathFinder, select the part whose mate relationship you want to modify.
Note:
The part highlights in the assembly window and the bottom pane of PathFinder shows the relationships applied to the part you selected.
In the bottom pane of PathFinder click the mate relationship you want to modify.
Note:
The faces that were used to apply the relationship highlight in the assembly window to show which relationship will be modified.
On the Edit Relationships command bar, in the Offset Value box, type a new offset value.
Tip:
You can select the part you want to modify the relationship for in your assembly window or in the top pane of Assembly PathFinder.
You can type a negative offset value if you want the parts to overlap.