CAD 1-3

Lakukan tugas rumah & ujian kamu dengan baik sekarang menggunakan Quizwiz!

world coordinates

(2.5, 3) coordinate system used by auto cad as the basis for defining all object and other coordinate system defined by the users

files of type

(DWG) standard autoCAD

startup system

0: start a drawing defined settings 1: displays the create new drawing dialog box can be used 2: displays a new tab with options, a custom dialog box can be used 3: displays a new tab with options (default)

startup dialog box options

1 open a drawing 2 start from scratch 3 use a template 4 use a setup wizard

rectangular coordinates entry

@0,2.5

relative polar coordinates entry method

@3<90

cartesian coordinate system

CAD systems the world space is defined using a three-dimensional

what is CAD measured in

UNITS

middle mouse button/wheel

allows quick pan and Zoom

tan tan radius

allows us to create a circle that is tangent to two objects

snap to endpoint

allows us to snap to the closest endpoint of objects such as lines or arcs

snap to tangent

allows us to snap to the point on a circle or arc that when connected to the last point forms a line tangent to that object

trim command

an object so that is ends precisely at a selected boundary

construction line

are lines that extend to infinity, usually used as references for creating other objects

absolute coordinate values

are measured from the current coordinate system's origin point

relative coordinate values

are specified in relation to previous coordinates

draw and modify toolbar panels

are the two main panels for creating drawings, the toolbars contain icons for basic draw and modify commands

QUICKCALC

autocad calculator, which can be used to perform a full range of mathematical, scientific, and geometric calculation

polyline

autocad is a 2D line of adjustable width composed of line and arc segment

zoom all command

be as large as possible. if no objects are constructed, the drawing limits are used to adjust the current viewport

explode command

breaks a compound object into its component objects

right mouse button

brings up additional available options. also used to accept the default option of a command, or end a process

center start end arc requires

center point, start point and end point location, in that order

to exit autocad

click the application choose exit autocad from the pull down menu or type QUIT

dynamic input

command interface near the cursor the help the user focus in the graphics area (the advantage is to keep our attention near the cursor

trim

command shortens an object so that is ends precisely at a selected boundary (it cut out an area where it not needed)

OTHO

constrains cursor movement to the horizontal or vertical direction

drawing limits

controls the extents of the display of the grid

offset command

creates a new object at a specified distance from an existing object or through a specified point

to save

ctrl s

world space

designs and drawings created in a CAD system are usually defined and stored using sets of points

autocad 2016

developed by Autodesk Inc, tool used design and drafting activities,

enclosed window selection

direction is form top left to bottom right

2 points

draw a circle based on 2 endpoints of the diameter

center, diameter

draws a circle based on a center point and a diameter

center, radius

draws a circle based on a center point and a radius

3 points

draws a circle based on three points on the circumference

TTT tangent, tangent, tangent

draws a circle tangent to three objects

TTR tangent, tangent, radius

draws a circle with a specified radius tangent to two objects

direct distance entry technique

entering 6.5

fillet

fillets the edges of 2 arcs, circles, elliptical arcs, or lines with an arc of a specified radius

inscribed in circle/ circumscribed about circle

flat to flat or corner to corner

CAD DESIGNS AND DRAWINGS IS THAT THEY SHOULD BE CREATED:

full size - using real world units

pan - realtime

function acts as if you are using a video

where do you find units

in the menu bar under - format

origin

intersection of the three coordinate axes forms a point

quick access toolbar

is located at the top of the autocad window allows us quick access to commands such Qnew, Open, Save, undo

drawing area

is the area where models and drawing are displayed

user coordinate system

is the default of autoCAD, is aligned to world coordinate system

computer aided design

is the process of doing designs with the aid of computers. this includes the generation of computer models, analysis of design data, and the creation of drawings

autocad menu bar

is the pull down menu where all operations of AutoCAD can be accessed

application menu location

is the top of the main window contains commonly used file operations

extend command

lengthens an object so that is ends precisely at a selected boundary

viewport/view/display controls

located at the upper left corner of the graphics area and it can be used to quickly access viewing related commands such as viewport and display style

esc (canceling commands)

located near the top left corner of the keyboard, esc X2 = to cancel a command, esc will exit a command

local coordinate systems (LCS) or user coordinate systems UCS

measured relative to the world coordinate system

when length type to decimal

measurement to the default english units, inches

grid and snap mode

options can be used to get a visual reference as to the size of objects and learn to restrict the movement of the cursor to a set increment on the screen

left mouse button

picks icons, menus, and graphic entities

autocad 2016 measuring angles

positive angular values as counterclockwise form the positive X axis

autodesk exchange

provides a user for help, learning aids, tips and tricks, videos and downloadable apps (displayed at startup)

command prompt area

provides status information for an operation and is is also the area for data input (located below the drawing area)

object snap

quickly draw a line to the center of a circle, the midpoint of a line segment, or intersection of two lines

object snap

quickly draw a line to the center of the circle, the midpoint of a line segment or the intersection of two lines

computer aided engineering

reducing design time, producing prototypes faster, and achieving higher product quality closer to a reality

to close the object

right mouse click and click close

Graphics Cursor or Crosshairs

shows the location of the pointing device in the drawing area, the coordinates are at the bottom of the screen layout

direct distance entry technique:

specify a second point by first moving the cursor to indicate direction and then entering a distance

layout tabs

the model/layout tabs allow us to switch/create between different model space and paper space

status toolbar

the status of many commonly used display and construction options

Ttr tan tan radius

this option allows us to create a circle that is tangent to two objects

cursor coordinates

to switch on the autoCAD coordinates display, located in the bottom right corner

layers control toolbar panel

toolbar panel contains tools to help manipulate the properties of graphical objects

ribbon tabs and panels

top section of the screen layout contains customizable icon panels, which contain of buttons that allow us to pick commands commands quickly

relative polar coordinates (format: @Distance<angle):

type a distance and angle relative to the last point

relative rectangular coordinates (format: @X,Y)

type the X and Y coordinates relative to the last point

absolute coordinates (format: X,Y)

type the X, Y coordinates to locate the point on the current coordinate system relative to the origin

every object we construct in a CAD system is measured in

units

interactive method

use the cursor to select on the screen

world space

usually a 3D cartesian coordinate system that the user cannot change or manipulate

Zoom all command

will adjust the display so that all objects in the drawing are displayed to be as large as possible

repeat circle

will repeat the last command

geometric modelers object are located and defined in what is usually called

world space or global space


Set pelajaran terkait

Sociology Ch. 11 Race and Ethnicity

View Set

Intro to Plants and Plant Diversity

View Set

Ch 6 Microbial Metabolism: Fueling Cell Growth (I)

View Set

Professional Communication Test Review 2

View Set