Introduction of Auto Cad:
Auto cad can be defined as
the use of computer system to assist in the creation, modification, analysis of
optimization of design. Computer aided design (CAD) is the process of doing
design with the aid of computers .This includes generation of computers models,
analysis of design data and creation of drawings. CAD is relatively a new and
rapidly expanding area in mechanical engineering .AUTO CAD is used for design
and mainly drafting activities. Auto cad is developed by Autodesk .Inc ,in 1982
Auto cad is the most
widely used CAD software and one of the most powerful and user friendly. Auto
cad is ideal for architects, construction engineers, managers and other
professionals within the building and designing industry.
Drawing is a language of
engineers. Graphic language is used among the engineers. An effective
communicating tool is graphic language. Engineering drawing is widely used in
mechanical, production, auto mobile, aeronautical, chemical, and marine and
electrical engineering to describe an engineering machine. Picture is better
than a million words. Picture is represented by pixels .Pixels is the smallest
picture on screen.
Now-a-days, computers
aided Design/Drafting (CAD) is becoming popular because of its simplicity and
accuracy in drawing, repeatability and fast work. As per the latest method,
geometrical model of the object with all dimensions with physical properties
can be prepared by using computers. The computers software commonly used for
drafting are Auto Cad 2000, Mini CAD etc. PRO/engineer, uni graphics, integrated engineering analysis
software(IDEAS),computer aided 3-dimensional interactive
application(CATIA),solid works, iron cad, mechanical desktop(mdt) with AutoCAD
2000 are leading modeling(design)cum drafting software packages are commonly
used engineering packages.
Computer Aided Design and
Drafting is a technology that is about the use of computers in the application
of engineering design and development. This technology came into the market
during early 80’s.Since the inception, the technology has grown to a very large
extent and today any engineering project is nearly impossible to think without
this technology.
Today, the computer
industry has grown to such an extent that you get both faster and cheaper
hardware and software that makes the engineering design cycle very fast and
affordable. One can produce any engineering design, either in 2D or 3D just on
top of the table, almost in no time .Your design idea can be transformed into a
3D model. Inside the computer with every geometric detail complete. The 3D
model that was so built can be visualized with proper material assignment
without actually manufacturing it. Besides visualization, you can also do
analysis for various mechanical components to check for heat or pressure. For
example, mechanical components that are subjected to heat such as combustion
engine parts can be designed and tested how it reacts to the pressure and
temperature during the operating conditions of engine.
If you are into the
architectural design project , you can build a full size model of your work on
the computer screen, add lights and even have a walk through the model that you
are designing of no brick, no paint, nothing. Today, the technology has grown
to that extent.
Merits of CAD over manual drafting:
1. Design can be consistently
accurate, clear and faster.
2.
Drawings are stored in electronic format in computers .With sufficient backup
space required for is far lesser than required for storing the manmade paper
drawings.
3.
Documents can be maintained safely for a longer period. No natural factors such
as moisture could spoil the documents.
4.
Retrieval of documents is faster than that of manual drawings.
5.
Editing and modification of drawing is easy.
6.
Directly we can construct and visualize a 3D model. The CAD software can
quickly produce the orthographic views of component or assembly.
7.
Repetitive and time consuming activities such as cross-hatching, dimensioning
can be done much faster care at a time.
8.
We can stimulate real life situation such as wind, sun light, pressure and
temperature and visualize how the model or design would react in a given
situation.
9.
There is flexibility in design.
10.
Design analysis is made.
11.
Fewer design errors.
12.
There is improvement in design with shorter lead time.
Auto
cad has several features:
® Group related parts of the
drawing together and turn their display on or off at will.
® Manipulate drawing
entities separately or in groups as though they were a single drawing entity.
® Create an untitled library
of custom made drawing entitles and symbols and insert them into different
drawings at will.
® Add dimension information
to your drawing ,easily by selecting relevant points on a drawing entity
® Automate AutoCAD by means
of command scripts that execute a series of commands in sequence. This can also
be done by programming AutoCAD with Auto LISP.
® Create drawings that can e
exported and used in other graphics programs.
® Construct 3D wire-frame
models of objects in 3D space and view them from any angle.
® Create sectional views of
objects in 3D entities automatically by using an AutoCAD feature called
clipping planes to temporarily block out selected portions of the drawing.
® Advanced versions of
AutoCAD is icon based and provides solid modeling features like other high end
CAD packages.
1. Increased and accuracy and productivity compared to traditional
method.
2. Cost effective and flexible, even small scale fabrication industries
can take advantage of it.
3. Can be e-transmitted
4. Changes can be incorporated very fast.
5. Production drawings can be created very fast.
6. Area, mass properties, centre of gravity, moment of inertia can be
calculated.
7. Easy visualization and hence customer satisfaction.
8. Templates and programming for consistency and drafting standards.
9. See the model before the equipment is actually manufactured.
10. Analysis and tests can be performed on the model like destructive
test, heat and cold test etc.
11. Latest version of AutoCAD has the power of drawings over the
internet.
Selection methods:
1. Object picking method
Select object with mouse
2.
Window method
From Right side (Blue)
3.
Cross hair method
From Left side (Green)
Functions keys:
·
F1 – Help ON/OFF
·
F2 – Text window
ON/OFF
·
F3 – Object snap
ON/OFF
·
F4 – 3D Object snap ON/OFF
·
F5 – Isoplane Top/Right/Left
·
F6 – Dynamic UCS ON/OFF
·
F7 – Grid ON/OFF
·
F8 – Ortho ON/OFF ( 00, 900, 1800,
2700 )
·
F9 - Snap ON/OFF
·
F10 – Polar ON/OFF (
Every 300 )
·
F11 – Object snap
tracking ON/OFF
·
F12 – Dynamic input
AUTO – CAD REQUIREMENTS:
To work on auto cad it
requires the following:-
1.
CPU [Central processing unit – which contains hard disk mother board,
ram / floppy drive etc.]
2.
Monitor: - IT works like drawing sheet,
you can draw or big drawing on screen. the command prompt is for typing &
upper menus are called status
3.
Keyboard: - IT is use typewriter; you
can type the data/ text from this.
4.
Mouse.:- IT is the alternate of
key board all the commands can be layers
Opening Auto CAD
Auto cad is designed to work in a windows operating system.
In general to open Auto CAD. Either double clicks on the Auto short cut in the
windows desktop the menu which then appears.
When working in education or in industry computers may be
configuration to allow other methods of opening Auto CAD 2014 such as a list
appearing on the computer in use where the computers is switched on form which
the operator can select the program they wish to use.
Grip
points:
If a line is drawn, there are 3 grip points (End
point, Middle point, End point) they are grip points
Coordinate System:
1. Absolute
method Syntax: (X,Y)
2. Relative
rectangular method Syntax: @(X,Y)
3. Polar method Syntax: @Length<Angle
Absolute
method:
In this method each and every point is calculated
based on origin point
Relative rectangular method:
In this method each and
every point is calculated on previous point
Polar method:
In this method each and
every point is calculated based on Distance & Angle
POINT:
Command: PO←
Current point modes: PDMODE=0
PDSIZE=0.0000
Specify a point:
POINT STYLES:
Command: DDPTYPE←
LINE:
Command: L←
LINE Specify first point:
Specify next point or [Undo]: <Ortho on> 10
Specify next point or [Undo]:
LIMITS:
Command: limits←
Specify lower left corner or [ON/OFF]
<0.0000,0.0000>: 0,0
Specify upper right corner
<210.0000,297.0000>: 210,297 (A4 isze)
Command: limits←
Reset Model space limits:
Specify lower left corner or [ON/OFF]
<0.0000,0.0000>: on
UNITS:
Command: UN←
CONSRTUCTION LINE:
Command: XL←
HORIZONTAL
LINE:
Command: XL←
XLINE Specify a point or
[Hor/Ver/Ang/Bisect/Offset]: H←
Specify through point:
Specify through point:
Specify through point:
Specify through point:
Specify through point:
VERTICAL LINES:
Command: XL←
XLINE Specify a point or
[Hor/Ver/Ang/Bisect/Offset]: V←
Specify through point:
Specify through point:
Specify through point:
Specify through point:
{C} ANGULAR LINES:
Command: XL←
XLINE Specify a point or
[Hor/Ver/Ang/Bisect/Offset]: A←
Enter angle of xline (0) or
[Reference]: 45
Specify through point:
Specify through point:
Specify through point:
OFFSET:
Command: O←
Current settings: Erase source=No
Layer=Source OFFSETGAPTYPE=0
Specify offset distance or
[Through/Erase/Layer] <30.0000>: 50
Select object to offset or [Exit/Undo]
<Exit>:
Specify point on side to offset or
[Exit/Multiple/Undo] <Exit>:
Select object to offset or [Exit/Undo]
<Exit>:
Specify point on side to offset or
[Exit/Multiple/Undo] <Exit>:
OPTIONS:
Command: OP←
ZOOM:
Command: Z←
[All/Center/Dynamic/Extents/Previous/Scale/Window/Object]
<real time>:E
Command: Z←
[All/Center/Dynamic/Extents/Previous/Scale/Window/Object]
<real time>:A
Command: Z←
[All/Center/Dynamic/Extents/Previous/Scale/Window/Object]
<real time>:O←
Select objects: ←
Command: Z←
[All/Center/Dynamic/Extents/Previous/Scale/Window/Object]
<real time>: w
Specify first corner:
Specify opposite corner:
RECTANGLE:
A. {AREA METHOD}:
Command: REC←
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: 0,0
Specify other corner point or
[Area/Dimensions/Rotation]: A
Enter area of rectangle in current units
<100.0000>: 200
Calculate rectangle dimensions based on
[Length/Width] <Length>: L
Enter rectangle length <10.0000>: 20
B.DIMENSION METHOD:
Command: REC←
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: 0,0
Specify other corner point or
[Area/Dimensions/Rotation]: D
Specify length for rectangles
<20.0000>: 20
Specify width for rectangles
<10.0000>: 10
C.CHAMFER:
Command: REC←
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: C←
Specify first chamfer distance for
rectangles <0.0000>: 2
Specify second chamfer distance for
rectangles <2.0000>: 3
Specify first corner point or [Chamfer/Elevation/Fillet/Thickness/Width]:
0,0
Specify other corner point or
[Area/Dimensions/Rotation]: 20,20.
D.FILLET:
Command: REC←
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: F←
Specify fillet radius for rectangles
<2.0000>: 2
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: 0,0
Specify other corner point or
[Area/Dimensions/Rotation]: 20,20
E.THICKINESS:
Command: REC←
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: T←
Specify thickness for rectangles
<0.0000>: 5
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: 0
Specify other corner point or
[Area/Dimensions/Rotation]: D
Specify length for rectangles
<20.0000>: 20
Specify width for rectangles <10.0000>:
10
F.WIDTH:
Command: REC←
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: W←
Specify line width for rectangles
<0.0000>: 2
Specify first corner point or
[Chamfer/Elevation/Fillet/Thickness/Width]: 0,0
Specify other corner point or
[Area/Dimensions/Rotation]: 10,10
CIRCLE:
Command: C←
CIRCLE Specify centre point for circle or
[3P/2P/Ttr (tan tan radius)]:
Specify radius of circle or [Diameter]: D
Specify diameter of circle: 50
A.2P METHOD:
Command: C←
Specify center point for circle or
[3P/2P/Ttr (tan tan radius)]: 2P
Specify first end point of circle's
diameter:
Specify second end point of circle's
diameter:
B.3P METHOD:
Command: C
CIRCLE Specify center point for circle or
[3P/2P/Ttr (tan tan radius)]: 3P
Specify first point on circle:
Specify second point on circle:
Specify third point on circle:
C. TTR(Tan Tan Radius)
Command: C←
Specify center point for circle or [3P/2P/Ttr
(tan tan radius)]: T
Specify point on
object for first tangent of circle:
Specify point on
object for second tangent of circle:
Specify radius of
circle <5.7247>: 2
D. TTT(Tan Tan Tan)
Go to Draw→Circle→Tan Tan Tan
Command: circle Specify center point for circle or [3P/2P/Ttr (tan
tan radius)]: _3p Specify first point on circle: _tan to
Specify second point on circle: _tan to
Specify third point on circle: _tan to
MIRROR:
Command: MI←
Select objects:
1 found
Select objects:
Specify first
point of mirror line:
Specify second
point of mirror line:
Erase source
objects? [Yes/No] <N>:N←
BREAK:
Command: BR←
BREAK Select
object:
Specify second
break point or [First point]: f
Specify first
break point:
Specify second
break point:
JOIN:
Command: J←
JOIN Select `
source: 1 found
Select lines to
join to source:
1 line joined to
source:
POLYGON:
EDGE METHOD
\
Command:
POL←
POLYGON
Enter number of sides <5>: 6
Specify
center of polygon or [Edge]: E←
Specify
first endpoint of edge:
Specify second endpoint of edge: 25
INSCRIBED IN CIRCLE:
Command: POL←
POLYGON Enter number of sides <5>: 6
Specify center of polygon or [Edge]:
Enter an option [Inscribed in
circle/Circumscribed about circle] <I>: I←
Specify radius of circle: 30
Command: C
CIRCLE Specify center point for circle or
[3P/2P/Ttr (tan tan radius)]: 2P
Specify first end point of circle's diameter:
Specify second end point of circle's
diameter:
CIRCUMSRIBED ABOUT CIRCLE:
Command: POL←
POLYGON Enter number of sides <8>: 6
Specify center of polygon or [Edge]:
Enter an option [Inscribed in
circle/Circumscribed about circle] <I>: C←
Specify radius of circle: 30
Command: C
CIRCLE Specify center point for circle or
[3P/2P/Ttr (tan tan radius)]:
Specify radius of circle or [Diameter]
<30.0000>: 30
RAY:
Command: RAY
Specify start point:
Specify through point: @15<30
Specify through point:
MULTILINE:
Command: ML←
Specify start point or
[Justification/Scale/STyle]: S
Enter mline scale <20.00>: 20
Current settings: Justification = Top,
Scale = 20.00, Style = STANDARD
Specify start point or
[Justification/Scale/STyle]:
Specify next point:
Specify next point or [Undo]:
ARC:
3
POINTS ARC:
Command: A←
Specify start point of arc or [Center]:
Specify second point of arc or
[Center/End]:
Specify end point of arc:
TYPES OF ARCS:
DONUT:
Command: DONUT←
Specify inside diameter of donut <5.0000>:
10
Specify outside diameter of donut
<15.0000>: 15
Specify center of donut or <exit>:
ARRAY:
A.RECTANGULAR
ARRAY:
Command: AR←
Select objects: 1 found
B.POLAR
ARRAY:
Command: AR←
Select objects: 1 found
Select objects:
ELLIPSE:
A.ELLIPSE END POINT METHOD:
Command:
EL←
Specify
axis endpoint of ellipse or [Arc/Center]:
Specify
other endpoint of axis: 10
Specify
distance to other axis or [Rotation]: 3
B.ELLIPSE CENTER POINT METHOD:
Command: EL←
ELLIPSE
Specify
axis endpoint of ellipse or [Arc/Center]: C←
Specify
center of ellipse:
Specify
endpoint of axis: 5
Specify
distance to other axis or [Rotation]: 3
C.ARC METHOD;
Command:
EL←
Specify
axis endpoint of ellipse or [Arc/Center]: A←
Specify
axis endpoint of elliptical arc or [Center]:
Specify
other endpoint of axis: <Ortho on>
10
Specify
distance to other axis or [Rotation]: 3
Specify
start angle or [Parameter]: 0
Specify
end angle or [Parameter/Included angle]: 90
POLYLINE:
Command:
PL←
Specify
start point:
Current
line-width is 0.0000
Specify
next point or [Arc/Halfwidth/Length/Undo/Width]: L
Specify
length of line: 10
Specify
next point or [Arc/Close/Halfwidth/Length/Undo/Width]: 10
pecify
next point or [Arc/Close/Halfwidth/Length/Undo/Width]: 10
Specify
next point or [Arc/Close/Halfwidth/Length/Undo/Width]: 10
Specify
next point or [Arc/Close/Halfwidth/Length/Undo/Width]: 10
A.HALF
WIDTH:
Command: PL←
Specify start point: 0,0
Specify next point or [Arc/Halfwidth/Length/Undo/Width]: H
Specify starting half-width <0.0000>: 2
Specify ending half-width <2.0000>: 4
Specify next point or [Arc/Halfwidth/Length/Undo/Width]: 10,0
B.WIDTH:
Command: PL←
Specify start point: 0,0
Current line-width is 8.0000
Specify next point or
[Arc/Halfwidth/Length/Undo/Width]: W←
Specify starting width <8.0000>: 4
Specify ending width <4.0000>: 8
Specify next point or
[Arc/Halfwidth/Length/Undo/Width]: 10,0
ROTATE:
Command:
RO←
Select
objects: 1 found
Select
objects:
Specify
base point:
Specify
rotation angle or [Copy/Reference] <0>: 45
SCALE:
Command:
SC←
Select
objects: 1 found
Select
objects:
Specify
base point:
Specify
scale factor or [Copy/Reference] <1.0000>: 2
LIST:
Command:
LI←
Select
objects: 1 found
LWPOLYLINE
Layer: "0"
Space: Model space
Handle = 4f4
Closed
Constant width 0.0000
area 260.9314
Perimeter 71.4324
at point X=1788.2999
Y= 967.5623 Z= 0.0000
at point X=1813.7724
Y= 967.5623 Z= 0.0000
at point X=1813.7724
Y= 977.8059 Z= 0.0000
at point X=1788.2999
Y= 977.8059 Z= 0.0000
LENGTHEN:
Command:
LENGTHEN
Select
an object or [DElta/Percent/Total/DYnamic]: P
Enter
percentage length <150.0000>: 150
Select
an object to change or [Undo]:
WIPEOUT:
When frame :on
When frame :off
Command:
WIPEOUT←
Specify
first point or [Frames/Polyline] <Polyline>:
Specify
next point:
Specify
next point or [Undo]:
Specify
next point or [Close/Undo]:
Specify
next point or [Close/Undo]: c
Command:
WIPEOUT←
Specify
first point or [Frames/Polyline] <Polyline>: F
Enter
mode [ON/OFF] :
MULTIPLE:
Command:
MUL←
Enter
command name to repeat: rec
RECTANG
Specify
first corner point or [Chamfer/Elevation/Fillet/Thickness/Width]:
Specify
other corner point or [Area/Dimensions/Rotation]:
SOLID:
Command:
SO←
Specify
first point:
Specify
second point:
Specify
third point:
Specify
fourth point or <exit>:
FILL:
Command:
FILL←
Enter
mode [ON/OFF] <ON>: OFF
REGENERATING MODEL:
Command:
RE←
REVISION CLOUD:
Command:
REVCLOUD←
Minimum
arc length: 1 Maximum arc length:
1 Style: Calligraphy
Specify
start point or [Arc length/Object/Style] <Object>: A
Specify
minimum length of arc <1>: 1
Specify
maximum length of arc <1>: 1
Specify
start point or [Arc length/Object/Style] <Object>:
Guide
crosshairs along cloud path...
Revision
cloud finished.
A.FOR RECTANGLE & CIRCLE:
Command:
REVCLOUD←
Minimum
arc length: 1 Maximum arc length:
1 Style: Calligraphy
Specify
start point or [Arc length/Object/Style] <Object>: O
Select
object:
Reverse
direction [Yes/No] <No>: YES
TABLE:
Command:
TABLE←
TABLEDIT:
Command:
TABLEDIT←
Pick a
table cell:
DIMCENTER:
Command:
DIMCENTER←
Select
arc or circle:
DIMINSPECT:
Command:
DIMINSPECT←
Select
dimensions:1 found
LINE TYPES:
Command:
LT←
LINE TYPE SCALE:
Command:
LTS←
LTSCALE
Enter new line type scale factor <1.0000>: 1.0
COLOUR:
Command:
COL←
AREA:
Command:
AA←
Specify
first corner point or [Object/Add area/Subtract area] <Object>:
Specify
next point or [Arc/Length/Undo]:
Specify
next point or [Arc/Length/Undo]:
Specify
next point or [Arc/Length/Undo/Total] <Total>:
Specify
next point or [Arc/Length/Undo/Total] <Total>:
SPecify
next point or [Arc/Length/Undo/Total] <Total>:
IDENTITY:
Command:
ID←
Specify
point: X = 7836.7558 Y = 3907.3845 Z = 0.0000
RASTER IMAGE REFERENCE:
GO
TO>> INSERT >> SELECT RASTER IMAGE REFERENCE >>
EXTERNAL REFERENCE:
Command:
XR←
BLOCK:
Command:
B←
Select
objects: 1 found
Select
objects:
Specify
insertion base point:
BLOCKEDIT:
Command: BE←
INSERT:
Command: I←
WBLOCK:
Command: WBLOCK←
Command: WBLOCK Select objects: Specify
opposite corner: 1 found
Select objects:
Specify insertion base point
MATCH PROPERTIES:
Command:
MATCHPROP←
Select source object:
Current active settings: Color Layer Ltype Ltscale Line weight
Thickness
Plot Style Dim Text Hatch Polyline Viewport
Table Material Shadow display
Multilayer
Select destination object(s) or [Settings]:
Select destination object(s) or [Settings]:
HATCHING:
Command: H←
Specify origin point:
Select objects or [pick internal
point/remove Boundaries]:1 found
HATCHEDIT:
Command: HATCHEDIT←
GRADIENT:
Command: H←
Select objects or [picK internal
point/remove Boundaries]:Specify opposite
corner: 3 found
Select objects or [picK internal
point/remove Boundaries]:
LAYERS:
Command: LA←
DIMENSION STYLE MANAGER:
Command:D←
3D
BOX:
Command: BOX←
Specify first corner or [Center]:
Specify other corner or [Cube/Length]:
Specify height or [2Point] <50.0000>:
100
CYLINDER:
Command: CYLINDER←
Specify center point of base or
[3P/2P/Ttr/Elliptical]:
Specify base radius or [Diameter]: 30
Specify height or [2Point/Axis endpoint]
<100.0000>: 150
CONE:
Command: CONE←
Specify center point of base or
[3P/2P/Ttr/Elliptical]:
Specify base radius or [Diameter]
<30.0000>: 30
Specify height or [2Point/Axis endpoint/Top
radius] <150.0000>: 100
PYRAMID:
Command: PYRAMID←
Specify center point of base or
[Edge/Sides]:
Specify base radius or [Inscribed]: 100
Specify height or [2Point/Axis endpoint/Top
radius]: 200
SPHERE:
Command: SPHERE←
Specify center point or [3P/2P/Ttr]:
Specify radius or [Diameter]
<30.0000>: 50
WEDGE:
Command: WEDGE←
Specify first corner or [Center]:
Specify other corner or [Cube/Length]: 200
Specify height or [2Point] <60.0000>:
50
TORUS:
Command: TORUS←
Specify center point or [3P/2P/Ttr]:
Specify radius or [Diameter]
<100.0000>: 100
Specify tube radius or [2Point/Diameter]
<50.0000>: 30
EXTRUDE:
A.RECTANGLE:
Command: EXT←
Current wire
frame density: ISOLINES=4
Select objects
to extrude: 1 found
Select objects
to extrude:
Specify height
of extrusion or [Direction/Path/Taper angle] <50.0000>: 4
B.CIRCLE:
Command:
EXT←
Current
wire frame density: ISOLINES=4
Select
objects to extrude: Specify opposite corner: 1 found
Select
objects to extrude:
Specify
height of extrusion or [Direction/Path/Taper angle] <4.0000>: 15
C.ELLIPSE:
Command:
EXT←
Current
wire frame density: ISOLINES=4
Select
objects to extrude: 1 found
Select
objects to extrude:
Specify
height of extrusion or [Direction/Path/Taper angle] <15.0000>: 10
LOFT:
Command:
LOFT←
Select
cross sections in lofting order: 1 found
Select
cross sections in lofting order: 1 found, 2 total
Select
cross sections in lofting order: 1 found, 3 total
Select
cross sections in lofting order:
Enter an
option [Guides/Path/Cross sections only] <Cross sections only>:
REVOLVE:
Command:
REV←
Current
wire frame density: ISOLINES=4
Select
objects to revolve: 1 found
Select
objects to revolve:
Specify
axis start point or define axis by [Object/X/Y/Z] <Object>:
Specify
axis endpoint:
Specify
angle of revolution or [STart angle] <360>:
SWEEP:
Command:
SW←
Current
wire frame density: ISOLINES=4
Select
objects to sweep: 1 found
Select
objects to sweep:
Select
sweep path or [Alignment/Base point/Scale/Twist]:
POLY SOLID:
Command:
PSOLID←
Specify
start point or [Object/Height/Width/Justify] <Object>:
Specify
next point or [Arc/Undo]:
Specify
next point or [Arc/Undo]:
Specify
next point or [Arc/Close/Undo]:
PRESSPULL:
Command:
PRESSPULL←
Click
inside bounded areas to press or pull.
1 loop
extracted.
SMOOTH OBJECT[MESH]:
Command:
MESHSMOOTHMORE←
Select
mesh objects to increase the smoothness level: '_.MESHSMOOTHMORE
>>Select
mesh objects to increase the smoothness level: 1 found
>>Select
mesh objects to increase the smoothness level:
UNION:
Command:
UNI←
Select
objects: 1 found
Select
objects: 1 found, 2 total
Select
objects:
SUBSTRACT:
Command:
SU←
SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select
objects: 1 found
HELIX:
Command:
HELIX←
Number
of turns = 3.0000 Twist=CCW
Specify
center point of base:
Specify
base radius or [Diameter] <10.0000>: 10
Specify
top radius or [Diameter] <10.0000>: 10
Specify
helix height or [Axis endpoint/Turns/turn Height/tWist] <20.0000>: 20
Command:
_sweep
Current
wire frame density: ISOLINES=4
Select
objects to sweep: 1 found
Select
objects to sweep:
Select
sweep path or [Alignment/Base point/Scale/Twist]:
