CAD - Key Terms & Facts

Question 1

What is the LINE tool used for?

Answer 1

Creates lines

Question 2

What is the CIRCLE tool used for?

Answer 2

Creates a circle.

Question 3

What is the RECTANGLE tool used for?

Answer 3

Creates a rectangle.

Question 4

What is the ELLIPSE tool used for?

Answer 4

Creates an ellipse using a centre point and a major and minor axes.

Question 5

What is the TRIM tool used for?

Answer 5

Cuts away a section of a line or curve between the nearest intersecting points.

Question 6

What is the ARRAY tool used for?

Answer 6

Duplicates selected sketch geometry and arranges it in a set pattern.

Question 7

What is the OFFSET tool used for?

Answer 7

Duplicates selected geometry and dynamically offsets it from the origional.

Question 8

What is the MIRROR tool used for?

Answer 8

Duplicates selected sketch across an axes.

Question 9

What is the PROJECT EDGE tool used for?

Answer 9

Allows for use of previous sketch lines in current sketch plane.

Question 10

What is the EXTEND tool used for?

Answer 10

Reverse of TRIM tool. Increase length of line / length of shown circumference until nearest intersecting point / curve.

Question 11

What does the EXTRUDE tool do?

Answer 11

Creates a feature or body by adding depth to a profile.

Question 12

What does the REVOLVE tool do?

Answer 12

Creates a feature or body by extruding one or more sketched profiles around a selected axes.

Question 13

What does the LOFT tool do?

Answer 13

Creates a transitional shape between two or more sketches.

Question 14

What does the HELIX tool do?

Answer 14

Creates a helical coil spring or thread feature.

Question 15

What does the EXTRUDE ALONG A PATH tool do?

Answer 15

Extrudes one or more Sketch profiles along a selected path to create a feature or body.

Question 16

What does the SHELL tool do?

Answer 16

Removes material from a feature or object creating a hollow cavity with a specified wall thickness.

Question 17

What does the FILLET tool do?

Answer 17

Rounds off one or more edges or faces with a specified radius.

Question 18

What does the CHAMFER tool do?

Answer 18

Applies a bevel to one or more component edges.

Question 19

What is a COMPONENT?

Answer 19

A component is a part of an assembly

Question 20

What is an ASSEMBLY?

Answer 20

An assembly is where multiple components / features are brought together and combined to make one item.

Question 21

What is a SUB-ASSEMBLY?

Answer 21

a unit assembled separately but designed to be incorporated with other units into a larger manufactured product.

Question 22

What is a WORKPLANE?

Answer 22

A workplane is a location with two out of three axes, X, Y and Z and users can choose to start a new sketch on one.

Question 23

What is an AXIS?

Answer 23

An axis

Question 24

What is a FEATURE?

Answer 24

A feature is an object in CAD

Question 25

What is a PROFILE?

Answer 25

A profile is a closed circuit sketch without depth

Question 26

What is a SKETCH?

Answer 26

A sketch is a simple drawing on CAD normally made up of circles and lines.

Question 27

What is a FACE?

Question 28

What is an EDGE?

Answer 28

An edge is a part of a 3D feature / object found between two faces.

Question 29

What does MATING do when assembling?

Answer 29

Constrains two faces to each other so that their directions of movement are limited.

Question 30

What does ALIGNING do when assembling?

Question 31

What is a SOLID MODEL?

Answer 31

A solid model is

Question 32

What is a WIRE FRAME?

Answer 32

A wire frame is a technique for representing 3D objects, in which all surfaces are visibly outlined in lines, including the opposite sides and all internal components that are normally hidden from view.

Question 33

What is TOP DOWN MODELLING?

Answer 33

Top down design is an option to create new parts within assembly. Constraints are the existing geometry elements from other parts within assembly: lines, planes, surfaces, points, vertices (Vertices - where two or more straight lines meet for example – corners of a cube).

Question 34

What is BOTTOM UP MODELLING?

Answer 34

Bottom up modelling is when parts are modelled then inserted and fixed in relation to other components in an assembly using mates.

Question 35

What are VERTICES?

Question 36

What is a MODELLING TREE / HIERARCHY?

Answer 36

The model tree contains a hierarchical list of features or components in the order in which they were created

Question 37

What is a MODELLING PLAN?

Answer 37

A modelling plan is

Question 38

What are CAD LIBRARIES?

Answer 38

CAD library provides a place for every designer and engineer to easily access, locate, download, save, and share commonly reused CAD data.