New tab

A New Tab is displays when you launch AutoCAD 2015



You can:

• Start new drawing
• Open existing drawing
• Open recent drawing
• Connect to Autodesk 360 cloud-based service

Workspace (Interface)

Quick Access Toolbar



Contain common Windows commands, like New, Open, Save, Save As, Plot, Undo, Redo

Ribbon contain Tabs and Panels

Model Space



All drawing draw in Model space

Paper Space - Layout



Layout is for plotting

Settings for Drawing



 Polar Tracking F10
  Object Snap Tracking F11
 Object Snap F3

Drawing Units

When you start up AutoCAD 2015
By default AutoCAD start up a drawing in Metric if you choose Singapore during installation

To check the drawing units



Enter UN



Millimeters display under Insert scale

This is not a convertor, it will not convert imperial drawing into metric drawing

Start New Drawing in Metric



Quick Access Toolbar - New



Select acadiso on the template list

For mechanical drawing, use the default millimeter units
For furniture drawing, enter UN



Select Centimeters

For landscape drawing, you might need to select meters

Navigating in 2D

Zoom In

Objects too small, cannot see clearly

Zoom in to enlarge them

Zoom Out

Want to see other portion of the drawing

Zoom out to see the whole area

Pan

Hold down the middle wheel

Move within the drawing

Zoom Extents

Double-click on the middle wheel

Fit the whole drawing into the screen

Line

Home tab > Draw panel > Line

Pick a point, move cursor up, a green dotted line show the line is vertically
Enter 7000

Move cursor to right horizontally
Enter 3600

Move cursor up vertically
Enter 3200

Move cursor right horizontally
Enter 8800

Move cursor down vertically
Enter 7500

Move cursor left horizontally
Enter 3200

Move cursor down vertically
Enter 1200

Move cursor left horizontally
Enter 1500

Move cursor down vertically
Enter 1500

Command line: Close

Rectangle

Home tab > Draw panel > Rectangle

Pick one corner, move diagonally to another corner
Enter 500,500

Repeat Rectangle command
Pick top-left coner of the square
Move diagonally to top-left corner
1st field show the "-" sign

Enter -2000,1000

Repeat Rectangle command
Pick the lower-left corner of the square
Move cursor diagonally to lower-left corner
Enter -1000,-500

Repeat the same steps draw the rectangles on the right side

Erase

Removes objects from a drawing

Home tab > Modify panel > Erase

Select object and press Enter
You can select multiple objects

Undo

Quick Access Toolbar - Undo

You can undo maximum 100 steps in AutoCAD

Coordinate Systems

CAD coordinate systems describe points relative to the object being modeled

Cartesian Coordinates

Both distances (X,Y)

Polar Coordinates

One distances, one angle

Absolute Coordinates
Any coordinates start from origin (0,0)

Relative Coordinates
Any coordinates start from last point

Circle

Home tab > Draw panel > Circle

Command line: 3P

Snap 3 points to creates the circle

Repeat Circle command
Command line: 2P

Snap 2 points to creates the circle

Repeat Circle command
Command line: Ttr

Touch 2 tangent of circles, enter the radius for the circles