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Practicing the Create Objects

Commands

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Line Line

Keyboard: Type in line and press Enter

Cascading menus: Draw --- Line

Toolbar icon: Draw toolbar, click Line icon

Ribbon: Home tab --- Line icon Step 1. Begin the Line command via any of the

preceding methods.AutoCAD says: Specify first point:

Step 2. Using the mouse, left-click anywhere on the

screen.AutoCAD says: Specify next point or [Undo]:

Step 3. Move the mouse elsewhere on the screen andleft-click again. You can repeat Step 2 as many times

as you wish. When you are done, click Enter or Esc.

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Circle (contd) Step 3. Notice the circle that forms; it varies in

size with the movement of your mouse. The valuein brackets in the previous step may also bedifferent; left-click again to finish the Circle

command. The method just used to create the circle was

called Center, Radius, and you could havespecified an exact radius size if you wished, byjust typing in a value after the first click.

There are six ways to create Circles that can beseen with the Ribbon and cascading menus.

Special attention should be paid to the Center,Diameter option. Press d for [Diameter] beforeentering a value.

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Arc Arc

Keyboard: Type in arc and press Enter.

Cascading menus: Draw Arc 3 Points.

Toolbar icon: Draw toolbar arc icon.

Ribbon: Home tab arc icon.

Step 1. Begin the Arc command via any of thepreceding methods.

AutoCAD says: Specify start point of arc or [Center]:

Step 2. Take the mouse and left-click anywhere onthe screen. This is first of the three pointsnecessary for the arc.

AutoCAD says: Specify second point of arc or[Center/End]:

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Arc (contd) Step 3. Click somewhere else on the screen to

place the second point.Finally AutoCAD says: Specify end point of arc:

Step 4. Left-click third time somewhere else onscreen to finish the arc.

The method just used is called 3 Point that is arather arbitrary method of creating arcs.

There are in total 11 ways to create arcs but notall of these options are used and some you willprobably never need.

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Rectangle Rectangle

Keyboard: Type in rectangle and press Enter.

Cascading menus: Draw Rectangle.

Toolbar icon: Draw toolbar rectangle icon.

Ribbon: Home tab Rectangle icon.

Step 1. Begin the Rectangle command via any of thepreceding methods.

AutoCAD says: Specify first corner point or[Chamfer/Elevation/Fillet/Thickness/Width]:

Step 2. Left-click, and move the mouse diagonallysomewhere else on the screen.

AutoCAD says: Specify other corner point or[Area/Dimensions/Rotation]:

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Rectangle (contd) Step 3. Left-click one more time to finish the

command.

There are of course more precise ways to draw arectangle. In Step 3, you can press d forDimensions and follow the prompts to assign

length, width, and a corner point to you rectangle. Try to draw this small

house using the

commands you havelearned so far.

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View Objects Zoom

By turning your mouse wheel in forward andbackward direction you can zoom in or zoom out onyour screen.

Pan By pressing your mouse wheel, a hand symbol will

appear. Now move the mouse around while keepingthe wheel depressed. You will be able to pan

around your drawing. Regen

Just type regen and press Enter. The screen willrefresh.

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Practicing the Edit / Modify

Objects Commands

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Erase Erase

Keyboard: Type in erase and press Enter.

Cascading menus: Modify Erase.

Toolbar icon: Modify toolbar Erase icon.

Ribbon: Home tab Erase icon. Step 1. Begin the Erase command via any of the

preceding methods.AutoCAD says: Select objects:

Step 2. Select any object from the house in theprevious drawing assignment by taking themouse, positioning over that object, and left-clicking once.

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Erase (contd)

AutoCAD says: Select objects: 1 found

Step 3. The object becomes dashed. It means theobject is selected.

AutoCAD asks you again: Select objects:

Step 4. Watch out for this step. AutoCAD always asksthis, in case you want to select more objects. You aredone, so press Enter and the object will disappear.

Practice this several times, using the Undo command

to bring the object back. Just type u in the command line and press Enter to

undo.

You can select any number of objects to erase as you

desire.

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Move Move

Keyboard: Type in move and press Enter.

Cascading menus: Modify Move.

Toolbar icon: Modify toolbar Move icon.

Ribbon: Home tab Move icon. Step 1. Begin the Move command via any of the

preceding methods.AutoCAD says: Select objects:

Step 2. Select any object by positioning themouse over that object and left-clicking once.AutoCAD says: Select objects: 1 found

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Move (contd) The object becomes dashed.

AutoCAD then asks you again: Select objects:

Step 3. Unless you have more than one object tomove, you are done, so press Enter.

AutoCAD says: Specify base point or [Displacement]:

Step 4. That means left-click anywhere on or near

the object to pick it up; this is where you will be

moving it from.AutoCAD says: Specify second point or :

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Move (contd) Step 5. Move the mouse somewhere else on the

screen and left-click to place the object in the newlocation. This is where you will be moving it to.

Notice that the dashed copy of the object remains

in its original location until you complete thecommand.

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Copy Copy

Keyboard: Type in copy and press Enter.

Cascading menus: Modify Copy.

Toolbar icon: Modify toolbar Copy icon.

Ribbon: Home tad Copy icon.

Step 1. Begin the Copy command via any of thepreceding methods.

AutoCAD says: Select objects:

Step 2. Select an object by positioning the mouseover that object and left-clicking once.

AutoCAD says: Select objects: 1 found

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Copy (contd) The object becomes dashed.

AutoCAD then asks you again: Select objects:

Step 3. Unless you have more than one object tocopy, you are done, so press Enter.

AutoCAD says: Specify base point or[Displacement/mOde]:

Step 4. That means left-click anywhere on or near theobject to pick it up; this is where you will be copyingit from.

AutoCAD says: Specify second point or :

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Copy (contd) Step 5. Move the mouse somewhere else on the

screen and left-click to copy the object to the newlocation. This is where you will be copying it to.

Notice that a dashed copy of the object remains in itsoriginal location until you complete the command. Youcan copy as many times as you want. Complete thecommand by pressing either Esc or Enter.

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Rotate Rotate

Keyboard: Type in rotate and press Enter.

Cascading menus: Modify Rotate.

Toolbar icon: Modify toolbar Rotate icon.

Ribbon: Home tab Rotate icon.

Step 1. Begin the Rotate command via any of thepreceding methods.

AutoCAD says: Current positive angle in UCS: ANGDIR =

counterclockwise ANGBASE = 0, and on the next line:Select objects:

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Rotate (contd) Step 2. Select any object as before, remembering to

press Enter again after the selection.

AutoCAD says: Specify base point:

Step 3. This means select the pivot point of the

objects rotation (the point about which it will rotate).Click anywhere on or near the object.

AutoCAD says: Specify rotation angle or [Copy/Reference]:

Step 4. You can click anywhere for a random rotation

angle or you can type in a specific numerical degreevalue.

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Scale Scale

Keyboard: Type in scale and press Enter.

Cascading menus: Modify Scale.

Toolbar icon: Modify toolbar Scale icon.

Ribbon: Home tab Scale icon.

Step 1. Begin the scale command via any of thepreceding methods.

AutoCAD says: Select objects:

Step 2. Select any object as before, remembering topress Enter again after the first selection.

AutoCAD says: Specify base point:

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Scale (contd) Step 3. This means select the point from which the

scaling of the object will occur. For now, clicksomewhere on or near the object or directly in themiddle of it.

AutoCAD says: Specify scale factor or [Copy/Reference]:

Step 4. Move the mouse around the screen. Theobject will get bigger or smaller. You can randomlyscale it or enter a numerical value. For example, if

you want it twice as big, enter 2; half size will be .5.

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Trim Trim

Keyboard: Type in trim and press Enter

Cascading menus: Modify Trim

Toolbar icon: Modify toolbar Trim icon.

Ribbon: Home tab Trim icon.

To practice this command you first need to draw twointersecting lines, one horizontal and one vertical,similar to a plus sign.

Step 1. Begin the Trim command via any of the

preceding methods.AutoCAD says:

Current settings: Projection = UCS, Edge = None

Select cutting edges

Select Objects or :

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Trim (contd) Step 2. Using the mouse, left-click on one of the lines.

This is your cutting edge. It becomes dashed.

AutoCAD says: Select objects or : 1 found

Press Enter.

AutoCAD says: Select object to trim or shift-select toextend or[Fence/Crossing/Project/Edge/eRase/Undo]:

Step 3. Go ahead and pick anywhere on the line thatyou did not select and it will be trimmed.

You can also do a trim between two or more lines.

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Extend Extend

Keyboard: Type in extend and press Enter.

Cascading menus: Modify Extend.

Toolbar icon: Modify toolbar Extend icon.

Ribbon: Home tab Extend icon.

To practice this command we need to draw two lines,one vertical and one horizontal with a potential tointersect but not intersecting each other.

Step 1. Begin the extend command via any of thepreceding methods.

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Extend (contd)

AutoCAD says:Current settings: Projection = UCS, Edge = None

Select boundary edges

Select objects or :

Step 2. Left-click the vertical line. This is the targetinto which you will extend the horizontal line. Itbecomes dashed.

AutoCAD says: Select objects: 1 found

Press Enter.

AutoCAD says: Select object to extend or shift-select totrim or [Fence/Crossing/Project/Edge/Undo]:

Step 3. Pick the end of the horizontal line that isclosest to the vertical line. It is the arrow that will

extend into the vertical line target. Press Enter tocomplete the command.

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Offset Offset

Keyboard: Type in offset and press Enter.

Cascading menus: Modify Offset.

Toolbar icon: Modify toolbar Offset icon.

Ribbon: Home tab Offset icon.

This command creates new lines by the directionalparallel offset concept, where if you have a line onyour screen, you can create a new one that is a

certain distance away but parallel to the original. Toillustrate it, first draw a random line anywhere on yourscreen.

Step 1. Begin the Offset command via any of the

preceding methods.

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Offset (contd)

AutoCAD says: Specify offset distance of[Through/Erase/Layer]:

Step 2. Enter an offset value (like 2 or 3). Then pressEnter.

AutoCAD says: Select object to offset or [Exit/Undo]:

Step 3. Pick the line by left-clicking on it; the linebecomes dashed.

AutoCAD says: Specify point on side to offset or

[Exit/Multiple/Undo] :

Step 4. Pick a direction for the line to go, which will beone of the two sides of the original. You can keepdoing this over and over by selecting the new line and

then the direction.

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Mirror Mirror

Keyboard: Type in mirror and press Enter.

Cascading menus: Modify Mirror.

Toolbar icon: Modify toolbar Mirror icon.

Ribbon: Home tab Mirror icon. To practice this command, draw a triangle by joining

three lines together.

Step 1. Begin the Mirror command via any of thepreceding methods.AutoCAD says: Select objects:

Step 2. Select all the three lines of the triangle andpress Enter.AutoCAD says: Specify first point of mirror line:

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Fillet

Fillet Keyboard: Type in fillet and press Enter.

Cascading menus: Modify Fillet.

Toolbar icon: Modify toolbar Fillet icon.

Ribbon: Home tab Fillet icon.

Draw two perpendicular lines that intersect.

Step 1. Begin the Fillet command via any of thepreceding methods.

AutoCAD says:

Current settings: Mode = Trim, Radius = 0.0000

Select first object or [Undo/Polyline/Radius/Trim/Multiple]:

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Fillet (contd)

Let us put a radius on the fillet. Type in r forradius and press Enter.

AutoCAD says: Specify fillet radius :

Enter a small value, perhaps 0.5 or 1. Press

Enter.

AutoCAD says:Select first object or[Undo/Polyline/Radius/Trim/Multiple]:

Step 3. Select the first (horizontal) line, somewhere

near the intersection. It becomes dashed.AutoCAD says: Select second object or shift-select toapply corner:

Step 4. Select the second (vertical) line, somewhere

near the intersection. The lines have a fillet added tothem.

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Drawing Accuracy

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Ortho (F8)

Ortho (which stands for orthographic) allows youto draw perfectly straight vertical or horizontallines.

To turn on the Ortho feature just press the F8 key

at the top of your keyboard, or click to depressthe ORTHO button at the bottom of the screen.

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OSNAPs

While drawing straight lines, we generally likethose lines to connect to each other in a veryprecise way.

Six fundamental OSNAP points.

ENDpoint

MIDpoint

CENter

QUADrant

INTersection

PERPendicular

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OSNAP Drafting Settings

Type osnap or select ToolsDrafting settingsfrom the cascading overhead menu. The OSNAPdialog box appears.

Check off the six settings mentioned previously,

and press OK.

To turn OSNAP on press F3 or press the OSNAPtoggle button at the bottom of the screen.

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Tips

The Esc key in the upper left-hand corner of yourkeyboard is your new best friend while learningAutoCAD. It will get you out of just about anytrouble you get yourself in.

To quickly erase everything on the screen, type ine for erase, press Enter, then type in all. Then

press Enter twice.

Type in z for zoom, press Enter, then type in the

letter e, then press Enter again. This is calledZoom to Extents and makes AutoCAD displayeverything you sketched, filling up the availablescreen space. Double-clicking the wheel on your

mouse produces the same effect.

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Tips (contd)

To perform the Undo command in AutoCAD justtype in u and press Enter. Do not type the entirecommand if you do that more options pop up,which we do not need at this point, so a simple u

suffices. You can also use the standard Undo andRedo arrows.

Simply pressing the space bar or Enter, the lastcommand you used will be repeated.

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Exercise 1

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Exercise 2