Lecture 1 Flashcards

1
Q

Trimetric Axonometric Projection
Dimetric
isometic

A

Top-Left-Right
135-120-105 degrees

135-118-135 degrees

120-120-120 degrees

There cubes are all the same size because they have the same amount of dissections on the axis

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2
Q

What the differences between the 3D axonometric projections

A

the angles between the axes

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3
Q

What do the dashed lines represent?

A

hidden lines/edges

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4
Q

how do
we represent an object without the distortions

A

We need to use a set of 2D Projections

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5
Q

What are the front, top, and right view

A

Front view: The front view provides info on the objects width and height but not depth

top view: The TOP view provides info on the object’s width and depth but not height

the right view: The RIGHT view provides info on the object’s depth and height but not width

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6
Q

What are the top, front, and right view all together

A

The TOP-FRONT-and-RIGHT views make up the standard set of orthographic
projections for an object.

They are always arranged in the following way, with their boundaries aligning with each other (the Isometric view typically goes in the top right quadrant).

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7
Q

How do incline planes and curved surfaces appear in 2D

A

Incline: foreshortened
curved surface: rectangles

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8
Q

How to choose the best front view

A

Choosing the best front view is extremely important for your starting point.

The best front view is the one that shows the most important features (overall shape)Channels, holes, details, etc.
with the fewest hidden lines

the first orthographic view is the front view because you want to include all the features

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9
Q

How to do curved surfaces appear

A

Curved surfaces appears as rectangles

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10
Q

what is an additive process

A

Additive process is a category of manufacturing process. This is process where an object is created by adding material which is like 3d printing

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11
Q

what is a subtractive process

A

Subtractive process is a category of manufacturing process. Subtractive process all into opposite, where often you are creating object by starting with a large bulk and removing material to get the desired shape. An example is milling, machinery, carving, sculpting

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12
Q

in solidworks how do you go from 2d to 3d

A

extruded boss

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13
Q

What is extruded cut

A

You can create and modify a 3d feature by creating a 2d sketch and using a remove material from i a larger object with extruded cut and this process is subtractive

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14
Q

What is fillet

A

In solidworks, you can round out the sharper edges and corners of a solid object using the fillet feature and is a subtractive process

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15
Q

Different part of solidworks

A

Command manager
menu bar
headsup view toolbar
task pane
graphic area
status bar
fature manager design tree

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16
Q

Write algorithm for additive process

A

1.Select top viiew
2.sketch rectangle
3.Smart demindsion
4.Boss extrude rectangle
5.Slect side of recantgle block
6.draw two circles
7.Smart dimension circles
8. Boss extrude out both circles

Prism shape
1.Select top view
2. Sketch square
Sketch square column and extrude up
4Draw triangle and extrude

17
Q

Mirror feature

A

it make take mutiple set to creare an object. So you mirror feature to take a 3D feature and copy it to a new blank and save it.You dont use it in 2d sketch

18
Q

what are constraints

A

constraints allow us to manipulate relathionships between lines in a 2d sketch/ Lines can be constrained(lined) in a particular way to make sure our sketch is the way we intended it

19
Q

types of constraints

A

Vertical-It make a line vertical and forces 2 points to be vertically aligned

horizontal-It makes a line horizontal and forces 2 points to be horizontally aligned

coincident-It make the end points of a line in coincidet with a line segment or arc

midpoint-Connicidence with the halfway point of a line arc

parallel-it makes 2 lines run parallel to each other

perpendicular-it makes 2 lines perpendicular to each other

concentric-it forces two arc to chare the same center

tangent-it forces two arc or linear arcs to make contact at one tnagent point

equal-forces similar object to have the same size

collinear forces edges to share alignment

fix-make a point or edge immovable

20
Q

hole feature

A

You can create a plain or thru by using the extruded cut feature and removing material from a part

21
Q

hole wizard

A

Lots of different type of holes are possible and make easier using the hole wizard.It has hole standardized

-Straight tapped-has tappers
countersink-has funnel
holes-regular hole
counterbore-has cylinder at top

22
Q

how can you be fully defined

A

you add measurments

23
Q

What are the option for patterns

A

linear pattern-along a straight line
circular pattern0along a circular plane
mirror pattern-along a mirror plane

curve driven pattern
sketch driven patterm

24
Q

what is a pattern feature

A

it is like how the mirror feature save us some time and copy a feature over a mirror plane in an object can use a circular or linear pattern to repeat a feature

25
Q

What are the characteristics of a threaded fastener

A

Major diameter-outside/longest diamter

minor diameter-inslide/smallest diameter w/o threads

pitch-physical distance between threads

pitch diameter-diameter of a pitch or average of the major or minor diameter

tread angle-angle between thread

Diagram

26
Q

Practice constraints

A
  1. 2 vertical
    2.1 and 3 horizontal
    3.1,4 tangent
    4.A and B coincident
  2. 3,4 tangent
    6 center arc and origin conicidnet
    7.vertical line dimensions-put dimensions
27
Q

revolve feature

A

there are many parts instead of having symmetry across a plane(like a lot of pieces that we have made so far_ Making these kinds of parts are so much easier when using revolved boss/base and revolve cut feature instead of trying to make them steps with the tool we have so far

28
Q

Candle base

A

1.Base one extrude
2.revolve extrudes
3.create smaller cylinder

but with revolve boss it is one sketch and rotational symmetry around the axis

29
Q

gear part

A

you have to extrude cut alot of circles but use revolve cut makes it easiers

30
Q

chamfer

A

Instead of a smooth round edge of fillet, we can alternatively apply beveled or angled edge called a chamfer to our 3d part

-must specify size of depth
-must specify angle as 60,30,45 degrees and not 90 degrees