Cam profile Sketching

There is no automatic cam sketcher but you can still draw two arcs with tangent lines.

look here if you are doing circular or linear cams:

http://help.solidworks.com/2012/english/SolidWorks/toolbox/c_toolbox_cams_overview.htm?id=853bc8f3842345b3a012c4da7a53f19b#Pg0