ME1101--- Engineering Visualisation and...

ME2103 Engineering Visualization & Modelling

by:

A/P Lee Kim Seng

Deputy Head (Outreach)

Room: EA 04-17

Tel: 6516 2574

[email protected]

http://courses.nus.edu.sg/course/mpeleeks/personal/index.htm

Advance

Intermediate

Novice

(ME2103)

Knowledge

Comprehension

Application

Analysis

Synthesis

Evaluation

Introduce

Reinforce

Demostrate/

Create

ME Modules

ME2103 Objectives

The objective of this ME2103 module is to enable

students to learn the various standards and

techniques of geometrical sketching, preparing

engineering drawings and specifications, and

learn how to interpret drawings. Students also

got to learn and use the advance commercial 3D

CAD software to do 3D solid modeling. Above all,

this module aims to expand the students’

creative talent and to communicate their ideas in

a meaningful manner.

ME2103 Course Contents1. Introduction

2. Introduction to SolidWorks

3. Principles of Projection

4. Sectioning and Dimensioning

5. Isometric & Orthographic sketching

6. Limits, Fits and Tolerances

7. Convention and Symmetry

8. Screw and Nuts Representation

9. Keys, Coupling and Locking Devices

10. Welding Symbols & Representations

Subject

(ME2103)

Topics

ConceptClassroom

Assessment

Assessment Focus:

Evaluate individual student

performance (grade)

Evaluate teaching/learning

(ME2103) 100% CA:

3 tutorials – 20%

2 unseen CAD tests – 30%

On-line quiz (course) – 50%

Introduction

Princ of Projection

Isometric &

orthographic views

Sectioning &

Dimensioning

Limit, Fits and GD&T

Drawing standards

Machine & Assembly

drawings

Dwg scale, Line types and

appln, Geometric

construction

1st and 3rd angle projn,

Auxiliary projection

Multi-view layout, isometric

sketching

Types of sectional views:

Full, Half, Offset, aligned

section etc., Hatching lines,

Projn & Dim lines.

Limit tolerances,

Fundamental Dev and Int

Tol Grade, Types of Fits,

Holes Basis Tol, Geometric

Tol and Symbols

Convention, Symmetry,

Screw and Nuts rep., Keys

Coupling & Locking Dev.

Welding symbols & rep.

3D modelling,

Module Learning Outcome(ME2103):

1. Able to use advance 3D modeling software in solid modeling, assembly

and preparing engineering drawings.

2. Have acquired the basic knowledge in engineering drawing principles,

tolerances, engineering conventions and representations

Program Outcome Assessment:

Performance

Indicator:

Unacceptable

Unacceptable

Novice

Unsatisfactory

Developing

Below expectation

Basic

Developing

Acceptable

Meets requirement

Proficient

Satisfactory

Outstanding

Excels

Advance

Exemplary


1. Able to use advance 3D modeling software ……

2. Have acquired the basic knowledge ……


(1. Able to use advance 3D modeling software in solid modeling, assembly and

preparing engineering drawings.)

Performance Indicator:

Able to read and

interpret 2D drawings

to perform 3D part

modeling

Able to perform 3D

assembly and generates

detail drawings

Novice

Not able to read

2D drawings

Not able to

assemble

components and

produce detail

drawings

Developing

Needs help from

tutor or referring

to e-Learning

Needs help from

tutor in order to

complete the

assembly and

detail drawings

Proficient

Able to complete

assignment with

min or no help

from tutor

Able to complete

most of assemble

and detail

drawings

Excels

Able to demonstrate the

skill needed in

completing the

assignment

Have all the skill in

performing the task

given.


(2. Have acquired the basic knowledge in engineering drawing principles,

tolerances, engineering conventions and representations)

Performance Indicator:

Understand the basic

principles of projections

Understand the engg

convention and

tolerance

Able to communicate

ideas using isometric or

orthographic

drawings/sketches

Novice

Cannot grasp

the basic

concept

Cannot grasp

the basic

concept

Cannot

communicate

ideas using

Iso/Ortho

dwg/sketches

Developing

Able to recognize

but difficulty in

duplicate the

concept

Able to recognize

but difficulty in

duplicate the

concept

Require help in

communicating

ideas using Iso or

Orth dwg/sketches

Proficient

Able to recognize

the concept and

apply the concept

occasionally

Able to recognize

the concept and

apply the concept

occasionally

Able to

comminucate ideas

using iso or ortho

dwgs sketches

Excels

Able to recognize and

apply the concept in

every day drawings

freely.

Able to recognize and

apply the concept in

every day drawings

freely.

Able to comminucate

ideas using iso or

ortho dwgs sketches

freely


1. Able to use advance 3D modeling software ……

2. Have acquired the basic knowledge ……

ME2103 Module Lecturer & Tutors

D:/BTech _Intro to Solidworks/SW2007/Intro SW/INTRODUCTION.htmD:/BTech _Intro to Solidworks/SW2007/Intro SW/INTRODUCTION.htm

../../../BTech _Intro to Solidworks/SW2007/Intro SW/INTRODUCTION.htm../../../BTech _Intro to Solidworks/SW2007/Intro SW/INTRODUCTION.htm

CAD Tutorials

CAD Tutorials

Grouping: A – P (14 groups)

E2 03-08 (PC5) & E2 03-09 (PC6)

IVLE On-line registration from 11/1/2016 to 20/1/2016

How to register on-line?

ME 2103

Grading

CAD

50%

Course Quiz

50%

Tutorials Tutorials CT2- CT4

20%,

CA Unseen CAD 1

assignment 10%

CT5 (20%)

(Qns to be given on

the day)

On-line Quiz

MCQs

(18th April 2016)

Total 50% 50%

D:/ME 2103 Course Flash 20060505/ME 2103 e-learning 2005-06/_ME2103 - ENGINEERING VISUALIZATION AND MODELING.swfD:/ME 2103 Course Flash 20060505/ME 2103 e-learning 2005-06/_ME2103 - ENGINEERING VISUALIZATION AND MODELING.swf

Consumer Products

Designed in SolidWorks

Medical Products


Electronic Products


Basic Manual Drawing

Instruments

Basic Manual Drawing Instruments

Pencil (H or 2H for constructions, 2B for outlines)

Set square (30 & 45 deg)

Ruler & Scale Rule

Protractors

Compass or Instrument set

Eraser & Erasing shield

Radii & Circle templates

French curve & Flexible curve

T-square

Line Description General

Application

Illustration

Continuous

thick line

Visible outline &

edges

Continuous

thin line

Dimension lines &

Projection/

Extension lines

Types of Lines and applications

Leader lines

Hatching/

Sectioning

Outline of revolve

section


Application

Illustration

Continuous

thin line

Continuous

thin line

Continuous

thin line


Dashed thin

line

Hidden outlines &

edges


Application

Illustration

Chain thin

line

Centre lines

Chain thick

line

To indicate a

surface that

requires additional

treatment.



Application

Illustration

Chain thin

line with

thick short

lines at both

ends

Symmetry lines

Continuous

thin

(straight)

with zigzags

Long break lines

Continuous

thick

(freehand)

line

Short break lines




Application

Illustration

Chain thin,

thick at ends

and changes

of directions

Cutting planes

Chain thin

double-

dashed

Phantom lines

Types of Lines Available in SolidWorks

Drawing involving Complicated Hidden Detail

Description Correct Correct Illustration Incorrect

Hidden line

begins with a

dash, Not a

space

Hidden lines

intersect with no

gap in between

Hidden lines

intersect at

corner with no

gap in between


Three hidden

lines meet at

the corner

Hidden line

begins with a

space as a

continuation

from a visible

line

Invisible arc

begins with a

dash

Hidden arc

begins with a

space as a

continuation

of a visible arc

Very small arc

may be made

solid

Two hidden

arcs meet at

the point of

tangency


What is Scale?

Full Size

1:1

Half Size

(reduced)

1:2

Double

Size

(enlarged)

2:1

1:1

2:1

1:2

To Specify the Scale on a Drawing

For drawings, the scale indicates the ratio of the

size of the drawing of the part or machine to its

actual size.

Recommended practice:

1:1 for full size

1:2 for half size and similarly for other

reductions

2:1 for double size and similarly for other

enlargements

Scale on a Drawing

Drawings

DrawingsInternational

DesignationDimension of

drawing

papers (mm)

A0 1189 x 841

A1 841 x 594

A2 594 x 420

A3 420 x 297

A4 297 x 210

Standard drawing

paper dimensions.

Standard paper sizes

Examples of Drawings

Example of Assembly

Examples of Drawings: Exploded View

Bill of Materials

Example: ME2103 drawing sheet

Default Settings:

• 3rd Angle Projection

• A4

• Landscape

Title Block

What is Title Block?

1. Contains vital part and/or assembly

information (drawing scale, angle of

projection, part name, tolerances etc…)

2. Each organization can have its own

unique version of a title block although

there are different standards of title

blocks (ANSI, DIN, ISO, JIS etc..)

3. Usually situated at the base of the

drawing sheet with a border enclosing

the drawing views.

Example: ME2103 title block

Example: ANSI title block

Example: DIN title block

Example: ISO title block

Example: JIS title block

Construction

A. To Draw a Line Through a Point and Parallel to a Line

A

B

C

D

P

Triangle may be

used instead of

ruler

Geometric Construction of // Line

B. To Draw a Line Parallel to a Line and at a Given Distance

G

H

A

B

E

Triangle may be

used instead of

ruler

R = CD

C D

Geometric Construction of // Line

Geometric Construction of Line

A BPC D

E

F

Geometric Construction: Bisecting an Angle

DA

B

C

R

r

r

F

E

Geometric Construction of Pentagon

A

B

CO D

E

r

R

Application of the Pentagon shape

Famous Defense Building in USA: The Pentagon

Geometric Construction of Hexagon

A

B

C

F

D

E

R

R

Application of the Hexagon shape

Screws, Bolts and Nuts

Construction of an Ellipse

A B

1

2

3

4 5

E

F

focus

Major axis

Minor axis

1/2 Major axis

1/2 Major axis

A3 B3

1 2 3 4 5

C

D


A3 + B3 = AB (Major axis)

Major Axis Method


Two Circles Method

Major axis

Minor axis

BA

C

D

30

Z

Y

E

P

Q

F

O

30R

A

B

C

D

E

F

G

H

R

I

J

Construction of an Isometric Ellipse

A B

C

D

O Major axis

Minor axis

123

1

2

3


Parallelogram Method

A B

C

D


Four-Centre Method

Tangents

Drawing Tangents to 2 Circles

Flash/Tangentsto2circlesA.swfFlash/Tangentsto2circlesA.swf

Tangents

Tangents

Flash/tangency1.swfFlash/tangency1.swf

Tangents

Flash/tangency2.swfFlash/tangency2.swf

Tangents

Flash/Tangent_arc_in_right_angle.swfFlash/Tangent_arc_in_right_angle.swf

Tangents

Flash/TangentH.swfFlash/TangentH.swf

Tangents

Flash/TangentI.swfFlash/TangentI.swf

Examples of Geometric Construction

External Caliper


Internal Caliper


Spanner


Special S-Wrench


Rocker Arm

Thank You

A/P Lee Kim Seng

ME1101--- Engineering Visualisation and...

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