introduction draw modify

8/3/2019 Introduction Draw Modify

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TRAINING ON |AUTOTRAINING ON |AUTO--CAD}CAD}


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What is Auto-CAD ?

CAD = Computer Aided Design

Follows your instructions

Quickly produces the exact drg. you want, or

You would draw them manually


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What are features of Auto-CAD?

To correct drgs. error easily

To make revision without re-doing the entire work

To display information about the drg.

To let you modify the drg. in a variety of ways

To plot any drg. very easily

To provides a set of entities for use in constructing drg.

It produces clean, precise final drg.

It can improves accuracy

It works for you


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What are various Commands of Auto-CAD ?

File

Edit

View

Insert

FormatTools

DrawDimension

ModifyWindow

Help

Command:


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How to operate Commands of Auto CAD ?

Methods

1st Method

Type name of

command

& enter

2nd Method

Choose name of

command from

Command menu.

3rd Method

Choose fly out icon

of desired

command.


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DRAW COMMANDS

Draw

Line

PolylinePolygon

Rectangle

Arc

Circle

Donut

EllipsePoint

Hatch

Text

Ray

Construction line

Multiline

Spline

BlockBoundary Region

3D Polygone

Surface

Solid


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MODIFY COMMNADS

Modify

Erase

Copy

Mirror

OffsetArray

Move

Rotate

Scale

TrimExtent

Break

Fillet

Explode

Stretch

Lengthen

Chamfer

3D Operation

Solids Editing

Solid


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EDIT Commands

Cut (Ctrl + X)

Copy (Ctrl + C)

Copy with base Point (Ctrl+shift+C)

Clear (del)

Select all (Ctrl + A)

Find


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Draw - Point

Draws point/ points as specifiedCommand : Single point/ Multiple point/ Divide/ Measure

Single point : Draw single point as specified

Multiple Point

Specify a pointGo on drawing points. No need of going to single point command

Divide

Select object to divide: suppose a line

Enter no of segments or [Block] 5 (let )

Result it will divide line into 5 equal parts.Measure

Select object to measure: line (let)

Specify length of segment or [Block] 2(let)

Result it measures 2 units and divides the line segments


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Draw - Ray

Creates a semi infinity line

Ray creates semi-infinite lines commonly used as

construction lines. A ray has a finite starting point and

extends to infinity.

From the Draw toolbar, choose the Ray fly out or

At the command prompt , enter Ray

From point: specify a point(1)

Through point :specify the point (2)through which you

want the ray to pass or Enter.Auto CAD draws a ray & continues to prompt for

through pts, enabling you to creates multiple rays. Press

ENTER to End Command.


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Draw Construction Line

Creates a infinity line

Similar to ray

It has a finite Start point & extends to infinite (both sides)

From the Draw toolbar, choose the construction line fly out or

At the command prompt , enter Construction line

From point: Specify a point(1)Through point: Specify the point (2) through which you

want the Construction line to pass or Enter.


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Draw - Line

Creates straight line segment

The Line command creates a line whose endpoints are

specified using two dimensional or three dimensional

Coordinates

From the draw toolbar, choose the line fly out, or

At the command prompt, enter Line

From point : Specify a point or press Enter

To point: Specify a point

To point: Specify a point

Auto CAD draws a line segments and continues the prompt for points, Enablingyou to draw continuous line. However each line segment is a separate object.

Press Enter to End Command.


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Draw Multi Line

Creates 2 or more parallel lines

From the draw toolbar, Chose the fly out, or

At the command prompt, Enter Multiline

Specify start point or [ Justification/ Scale/ Style]Specify Start point, Specify next point or [Undo]

Specify next point, or [close/undo]

Justification: J

Enter Justification type [Top/Zero/Bottom] :

Specify start point or [J/Scale/Style]:

Justification Top ~ Crusher shall be on Top lineIf scale is entered /selected

Enter Mline Scale: 10 (let)

Spacing between line shall be 10 times

If style is entered /selected

Enter m line style name or [?] Standard


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Draw Spline

Draws special lines with closed boundary with specified tangent

Single identity/ object

From the draw toolbar, Chose the fly out, orAt the command prompt, Enter Spline

Specify 1stpoint or [ Object ]:

Specify 2ndpoint :

Specify next point, or [close/Fit Tolerance] :

..

CloseSpecify Tangent:

Result:

Fit Tolerance

It will automatically fit the tolerance

Result:


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Draw - Polyline

Creates 2-D polylines

It is single identity

From the draw toolbar, choose the polyline fly out, orAt the command prompt, Enter polyline

Specify start point:

Specify next point or (Arc/ Halfwidth/Length/Undo/Width

Specify next point or (Arc/ Close/Halfwidth/Length/Undo/WidthArc (Pline)Changes Pline to aec mode, in which you add arc segments to the polylineAngle/ Centre/ Close/ Direction/ Halfwidth/ Line/ Radius/ Second Pt./ Undo/ Width/


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Draw - Polygon

Creates an equilateral closed polyline

A polygon is a polyline object. AutoCAD draws

polylines With zero width and no tangent information .

you can use the PEDIT command to change the values.

From the draw toolbar, choose the polygon fly out, or

At the command prompt, Enter polygon

Number of sides: Specify a point (1) or Enter


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Draw - Rectangle

Draws Rectangle

Specify 1st corner point or [chamfer/elevation/Fillet/Thickness/Width]:

Chamfer

Specify 1st chamfer distance for rectangle: 1 (let)

Specify 2nd chamfer distance for rectangle: 1 (let)

Elevatron

Specify the elevation for rectangle : 1(let)

Specify 1st corner point

Specify 2nd corner point

Result

Fillet

Specify 1st corner


ResultThickness

Specify thickness for rectangle For 3-D

Width

Specify width for rectangle

Specify 1st corner point


Result


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Draw - Arc

Creates an ArcCommands :

3rdpoints

Start, Center, End

Start, Center, Angle

Start, Center, LengthStart, End, Angle

Start End, Direction

Start, End, Radius

Centre, Start, End

Centre, Start, Angle

Center, Start, Length

Specifies the starting point of Arc,

Specifies the centre of the circle of which an arc is a part.

Specifies the endpoint of the arc

Result


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Draw - Circle

Creates a circleCommands :Center, Radius

Center, Diameter

2 points

3 points

Tan, Tan, Radius

Tan, Tan, Tan

Centre Point: Draws a circle based on a centre point and

Diameter or radius.

Diameter/ specify a point(2), enter a

value, enter d or press Enter.

2P (Circle): Draw a circle based on two endpoints of

the diameter.1st point of diameter: specify a point (1) or enter a value.

2ndpoint on diameter: Specify a point (2) or enter a value.

3rd (Circle): Draw a circle based on three points on the circumference.

1stpoint: specify a point(1) or enter a value

2ndpoint: specify a point(2) or enter a value

3rdpoint: specify a point(3) or enter a value


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Draw - Donut

Draws fill circle and ringUsed to mark a object

From the Draw toolbar, choose the donut fly out, or

At the command prompt, enter donut

Inside Diameter :specify a distance or press enter

(Note : If you specify an Inside Diameter of zero,

the donut is a Filled circle)

Outside diameter specify a distance, or press Ent

Center of doughnut: specify a point (1)

Result : Donut


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Draw - Ellipse

Create an ellipse or an elliptical arc

Command :Ellipse

Center

Axis

EndThe PELLIPSE system variable determines the type of

ellipse created;1 create a polyline representation of an

ellipse and 0 creates a true ellipse object.

From the Draw toolbar, choose the ellipse fly out, or

At the command prompt, enter ellipse

Arc/Center/Isocircle /:Specify a point

or enter an option.


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Draw - Text

To Write Text in the drg.

Command: Text (Multiline text/ Single line text)

Multiline Text : to write text in multiline

Specify 1st corner or [ht./ Justify/line spacing/Rotate/Style/Width]

Specify opposite corner & write multiline text & confirm

Height:Specify ht:

Justify: [TL/TC/TR/ML/MC/MRBL/BC/BR] TL

Line spacing:

Enter line spacing type [At least exactly]:

Rotate:

Specify Rotation Angle:45o (let)

Style:

Enter style name or[?] :

Width

Specify width:5


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Draw - Block

Creates a block definition from a set of objectsCommand :

Block

Make

Select objectsPick Points

OK

Names the block

Note: Block names can be up to 31 character

In length. And can contain letters, digits, and the special

characters dollar sign($), hyphen(-) and underscore(_).


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Draw - Hatch

Fills a selected pattern to a defined boundaryUsed to marked/ identify an object

It is a single identity

Command : Hatch or select hatch fly out

Select desired patternDefine scale

Define angle

Select objects, or

Pick PointsOK

Selected hatch pattern with defined scale & angle shall be filled


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Draw - Boundary

Pick points: Determine a boundary from existing objects that

form an enclosed area. If Island Detection is enable in the

advanced option dialog box , AutoCAD detects objects within the

Outer most boundary as island that are hatched as specified by theHatch style. The boundary hatch dialog box disappears and

auto CAD prompts for points specification.

Select internal point: specify a new point with the area to be

hatched.

Select internal point: specify a point ,enter u or press enter

To enter the last selection ,enter u or undo.


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MODIFY COMMNADS

Modify

Erase

Copy

Mirror

OffsetArray

Move

Rotate

Scale

TrimExtent

Break

Fillet

Explode

Stretch

Lengthen

Chamfer

3D Operation

Solids Editing

Solid


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Modify Commands & their features

Describe the command you will use to Modify or Edit your drg.Using this command one can (Modify) :

Erase objects you have drawn

Retrieve objects you erase inadvertently

Move object to other location

Make copy/multiple copy

Rotate, Enlarge or shrink objects

Create mirror image of existing object

Change the properties (layer, color, etc.) of object

Break the existing object

Trim or extend objects

Creates fillets or chamfersDivide one object into equal part

Explode a block or Polyline

Draw the lines || to existing one

Reverse (Undo) the effect of most drawing & editing commands, etc.


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Entity Selection (Selection Set)

Object selection: (Select object)(Point)= one object

Multiple= Multiple object selected

Last= last object

Previous= All objects in previous selection setWindow=Object within windows

Crossing=Object within or crossing window

Box=automatic crossing

Auto=automatic boxing

Single= One selection (any type)Add=add mode

Remove=remove mode

Undo=Undo remove last

~When you are satisfied with the selection set, Enter Return


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Modify - Erase

Lets you specify entities that you want permanently

removed from the drawing.

Command: ERASE

Select object: L/W/C

After selection is over, confirm/ press enter

(Note.: OOPS command can be used to retrieve the last thing

your erased)


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Modify - Move

To move one and more entities from their present

location in a drawing to a new one without changing

their orientation and size

Command: MOVE

Select object (Show what to move): L/W/C/.

Base point of displacement : Specify 1st

point2ndpoint of displacement : Specify 2nd Point

Result


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Modify - Copy

To copy exiting objects, enter the copy command

It is similar to move command but it places copies

of the selected object at the specified displacement,

leaving the original intact.Copies are oriented and scaled the same as the original.

Command: Copy

Select Objects : (Show what to copy)Base point of Displacement >/Multiple: Specify 1stpoint

2ndpoint of displacement: Specify 2ndpoint

Multiple


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Modify - Mirror

Make mirror images of exiting objects in drawing,

either deleting or retaining the original object.

Command: Mirror

Select objects: Select the object/ objects

1st

point of mirror line: Specify 1st

Point2ndpoint of mirror line : Specify 2nd Point

Delete old object :

Result:

Mirror of Text or AttributesTo get ride of mirror image of text, use Mirror Text

Command by using SETVAR Command

Mirrtext = 0 (for errect)

Mirrtext = 1 (invested)


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Modify -Offset

Used to construct an entity parallel to another entity at

either a specified distance or thro a specified point.

Command: Offset

Offset distance or through :

Select object to offset: Select object

Thro Point: Specify point/ distance

An example of offsetting a polyline using the

Through point method is :

(Note: Offsetting of an entity other than a line,

Area circle or polyline is not possible)


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Modify - Array

Allows you to make multiple copies of selected objects

in a rectangular or polar (circular) pattern.

Format : Array select object:

Rectangular or polar (R/P):

For RNo of column(+/-):No of Rows(+/-):

Space between them:

For P Center point of Array:

No of items in Array:

No of Degrees to fill:

Angle between item in array:


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Modify -Rotate

Move objects about a base point to a desired point

From the modify toolbar, choose the rotate fly out, or

At the command prompt, Enter RotateSelect objects: Use an object selection method

Base point; Specify a Point(1)

/ Reference: Specify an angle or

enter R, or specify a point

Result:


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Modify - Scale

ForUp-Arrow or Down-Arrow size of an object

or objects as per requirement.

Command: Scale

Select object: Select

Specify Base Point: specify as per requirement

Specify scale factor or [reference]: 2 (let)

Result: 2 times


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Modify - Trim

Allows us to Trim/cut/erase part of existing object

w.r.t. a define object in a drawing

Command :TrimSelect objects: Select

Select object to trim: Select

Result:

Ex.:


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Modify - Extend

Allows us to lengthen existing objects in a drawing

so they end precisely at a boundary defined by one

or more other objects in the drawing.

Command: Extend

Select objects:

Select objects to extend:

Result:

Ex.:


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Modify - Break

Erase (Deletes) part of live ,trace, circle,Arcor Polyline or splits the object into twoobject

of same type.

Command :BreakSelect object:

Enter 1stpoint

Enter 2ndpoint

Result:

Ex.:


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Modify - Fillet

Connects two lines, arcs, or circles by means of

a smoothly fitted are of a specified radius

It adjusts the Length of the original lines or arcs,so they end exactly on the fillet arc.

Command: FILLET

Polyline/Radius/

Ex.:


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Modify - Chamfer

Trim two intersecting lines a specified distance from theintersection and connects the trimmed ends with a new

line segment.

Its operation similar toFILLET

Command: ChamferPolyline /Distance/:distance

Chamfering two Lines

Chamfering works by extending two selected lines,

if necessary, until they intersect. It then trims the 1st

lineby the 1st chamfer distance, trims the 2nd

line by 2nd chamfer distance and connects the trimmed

ends with a straight line

Ex.:


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Modify - Stretch

For stretch a part of an object as per requirement.

Command: StretchSelect object: select

Again click the selected object

Then stretch as per requirement

Ex.:


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Modify - Explode

To make fregment of a polyline /polygone/hatch pattern/

Command: Explode

Ex.:


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Thank you


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NEW DESIGNED STOVE - G.A.

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