To Change Object Snap Settings
At the Command prompt, enter
AMOPTIONS
.
In the Options dialog box, select the AM:Preferences tab.
In the AM:Preferences tab, select Snap Defaults.
In the Power Snap Settings dialog box, make the necessary entries and choose OK.
Click OK in all dialog boxes.
Related Concepts
About Power Snaps
Related Reference
AutoCAD Mechanical Commands for Working with Object Snaps