Object Snap & Object Snap Override - Drawing Precision

Specify precise location to create an accurate drawing

Running Object Snap

Use one or more object snaps repeatedly

Status bar - Object Snap - Object Snap Settings

Endpoint

(Line & Arc)

Home tab > Draw panel > Line

Snap to the endpoint of an arc
Pick a point

Snap to the endpoint of a line
Pick a point
Press [Enter] to end the command

Midpoint

(Line & Arc)

Start Line command

Pick a midpoint on an arc

Pic a midpoint on a line

Center

(Circle & Arc)

Start Line command

Pick center point on circle

Pick center point on another circle

Hover cursor over an arc to display the center mark

Move cursor to center mark ad pick the center point

Geometric Center

Closed Polyline

Home tab > Draw panel > Circle

Pick center point on polygon

Enter the radius
Press [Enter]

Repeat Circle command
Pick center point on rectangle

Enter the radius
Press [Enter]

Node

Point object

Home tab > Draw panel > Circle

Snap to the node of point object
Pick a point

Enter 200 for the radius

Quadrant

(Circle & Arc)

Home tab > Draw panel > Line

Pick a quadrant point at 90 degrees on circle

Pick a quadrant point at 180 degrees on circle

Pick a quadrant point at 270 degrees on circle

Pick a quadrant point at 0 degrees on circle

Pick a quadrant point at 90 degrees on circle to draw a square

Circle has 4 quarrant points
Arc from 0 to 4 quadrant points

Intersection

Common point

Home tab > Draw panel > Line

Pick a common point on 2 lines

Pick a common point on the other 2 lines

Extension

From a point

Home tab > Draw panel > Rectangle

Hover over endpoint of the object

Move down vertically to displayed the path

Enter 300 for the distance of extension
Press [Enter]

Move cursor diagonally to opposite corner
Enter 1200

Press Tab key to 2nd field
Enter -200 for width

Press [Enter]

Insertion

(Text & Block)

Home tab > Draw panel > Circle

Move cursor near the text until the insert icon displayed

Pick a point

Enter 550 for the radius

Perpendicular

(Line, Circle, Arc)

Home tab > Draw panel > Line

Pick endpoint on a line

Hover cursor over the other line to display perpendicular icon
Pick a point and press [Enter]

Repeat Line command
Pick a point outside the circle

Hover cursor over the circle to display the perpendicular icon
Pick a point

If extend the line, it go through the center of the circle.

Repeat Line command
Pick a point outside an arc

Hover cursor over the arc to displayed the perpendicular icon
Pick a point

If extend the line, it go through the center of the arc.

Tangent

(Line, Circle, Arc)

Home tab > Draw panel > Line

Pick tangent point on the circle

Pick tangent point on other circle
Press [Enter]

Home tab > Draw panel > Circle

Pick node point on point object

Pick tangent point along the circular path

Nearest

Any point along path

Home tab > Draw panel > Line

Pick any point on the circle

Pick a point inside the circle

Pick a point on the right

Pick last point on the circle

Parallel

Line

Home tab > Draw panel > Line

Pick endpoint from a line

Hover cursor over line to displayed parallel icon

Move away until reach the same angle
Alignment path displayed

Move along alignment path and pick a point

Object Snap Override

Specify an object snap at a prompt of a point
This object snap only effect on next point

Home tab > Draw panel > Line

Pick an endpoint on the line

Shift + Right-click to bring up the menu
Select Tangent

Snap to the tangent point of the circle
Take note that the Running Object Snap is ON at the moment, but disable.

After you pick the tangent point, Running Object Snap active again.