SolidWorks Tutorials 6: How to Draw Centerpoint Slot
The center point slot is sketches by setting a center point, end circle center and point on the slot.
Select plane from the Featuremanager design tree (e.g. Top Plane).
Select the “Centerpoint slot” button from the command manager.
Drag the mouse pointer to graphics area to select the centerpoint of the slot (Point 1).
Then drag the pointer to left or right side to select the end circle center point of the slot (Point 2).
After that, move the pointer upward to enlarge the size of centerpoint slot and click the mouse button to select the Point 3. Then you get an Centerpoint straight slot in graphics area.