Week 1

Question 1

Parametric solid modeler + example

Answer 1

Uses dimensions, parameters, and relationships to define and drive 3D shapes.

Question 2

parametric vs non-parametric modeler

Answer 2

non-parametric might let you draw a line and label its length, but the label doesn’t determine the geometry; just reports it. If you stretch the line, the dimension text would be wrong until you manually fix it

parametric would have the dimension control the line. if you sketch a line and then change the dimension, the line automatically resizes. The rest of the dimension will update so the model is consistent

Question 3

solid (in reference to SolidWorks

Answer 3

you are not just drawing edges or surfaces, but volumes with mass, inertia, and material

Question 4

What do solid modeling systems use to represent full 3D objects that can be measured, sectioned, and visualized as physical parts

Answer 4

1. volumetric primitives (boxes, cylinders, spheres)
2. extruded/revolved profiles

Question 5

Base feature

Answer 5

the first solid volume you create

Question 6

features

Answer 6

bosses, cuts, fillets, holes

Question 7

part

Answer 7

a single physical component

Question 8

assembly

Answer 8

collection of parts constrained together

Question 9

drawing

Answer 9

a 2D documentation of a part or assembly, using orthographic views, dimensions, and notes so someone can manufacture or inspect it.

Question 10

kinds of solidworks documents

Answer 10

parts
assembly
drawing

Question 11

3 reasons to use the correct template

Answer 11

1. your units could be wrong
2. the drawing standards might not match the course of company expectations (ISO vs ANSI
3. default font sizes, title blocks and layers may be inconsistent

Question 12

best practice for starting sketches + why

Answer 12

start at the origin for symmetry and alignment

Question 13

black sketch entities

Answer 13

fully defined

Question 14

blue sketch entities

Answer 14

under defined

Question 15

red sketch entities

Answer 15

over defined (conflicting dimensions or constraints

Question 16

yellow sketch entities

Answer 16

redundant

Question 17

smallest possible demonstration of what parametric modeling means in practice

Answer 17

1. place a circle centre at a known location
2. apply the diameter dimension
3. change the dimension

Question 18

fillet

Answer 18

rounds an interior or exterior corner with a constant radius

Question 19

chamfer

Answer 19

cuts the corner off with an angled flat

Question 20

3 reasons chamfers and fillets are important

Answer 20

1. sharp edges can be stress concentrators and may be more prone to cracking
2. they’re uncomfortable or unsafe to handle and can be difficult to machine
3. rounding or beveling edges also helps parts seat properly and improves fit

Question 21

child feature + what is it an example of

Answer 21

a feature that is dependent on another feature. ie changing the parent feature (like the base block’s dimensions) causes the children feature to update automatically

parametric dependency

Question 22

blind holes

Answer 22

drilled to a certain depth

Question 23

through holes

Answer 23

drilled all the way through

Question 24

tapped holes

Answer 24

threaded to accept screws

Question 25

spotface, counterbore, countersink holes

Answer 25

holes for bolt heads

Question 26

Hole wizard lets you:

Answer 26

1. pick a standard (ANSI, ISO) 2. choose a hole type 3. choose a size based on standard fasteners 4. place the hole on a face and set its depth

Question 27

Hole Wizard advantages (3)

Answer 27

1. guarentee standard dimensions that match real screws and bolts 2. create both 3D feature and correct symbols for drawings automatically 3. help maintain consistency and reduces manual calc. errors

Question 28

normal faces

Answer 28

faces that are parallel to the image plane showing that such faces appear in true size and shape in the drawing

Question 29

what should the space between your 3 drawings be

Answer 29

roughly the same

Question 30

hole/circle placement in orthographic view

Answer 30

holes/circles need to be in-line with their other orthographic views

Question 31

draw the _____ number of views + explain

Answer 31

minimum. you don't need 8 top views showing the same drawing

Question 32

surfaces + types

Answer 32

create bounds for solids 1. planar 2. single curved 3. double curved 4. warped

Question 33

solids

Answer 33

three dimensional figures

Question 34

planar surfaces + example

Answer 34

straight surface, think of a cube

Question 35

single curved surface + example

Answer 35

formed by taking a straight line and moving it in a circular path to enclose a volume, think of a cylinder

Question 36

double curved surface + 3 examples

Answer 36

no planar surfaces are created spheres, ellipsoid, torus

Question 37

warped surface

Answer 37

non-uniform surface

Question 38

types of solids (8)

Answer 38

1. regular polyhedron 2. prism 3. pyramid 4. cylinder 5. cones 6. spheres 7. tori 8. ellipsoids

Question 39

regular polyhedron + types (5) and what they are

Answer 39

all faces of a solid are equal tetrahedron: 4 triangles hexahedron: cube octahedron: 8 triangles dodecahedron: 12 pentagons icosahedron: 20 triangles (d12 dice)

Question 40

pyramid

Answer 40

polygon for a base and triangular lateral faces that intersect at a vertex

Question 41

prism + 2 types

Answer 41

two bases, which are parallel equal polygons and three or more additional faces which are parallelograms - triangular prism - rectangular prism

Question 42

oblique prism vs right prism

Answer 42

right prism: faces and lateral edges that are perpendicular to the base oblique: has faces and lateral edges that are angled to the bases

Question 43

lateral

Answer 43

side

Question 44

pyramid axis

Answer 44

line from the center of the base to the vertex

Question 45

oblique vs right pyramid

Answer 45

right: axis is perpendicular to the base oblique: axis is not perpendicular to the base

Question 46

cylinder + how formed

Answer 46

single curved exterior surface. taking a straigh line and moving it in a circular path to enclose abolume

Question 47

element of a cylinder

Answer 47

each position of an imaginary straight line in its path around the axis of cylinder

Question 48

benefits of hatching lines and stippling for shading

Answer 48

easier to reproduce with a photocopier than continuous-tone pencil shading

Question 49

edgin

Answer 49

formed where two surfaces intersect.

Question 50

vertex

Answer 50

formed where three or more surfaces intersect. end of an edge