Curtin University
Department of Mechanical Engineering
ENGINEERING GRAPHICS
ENGINEERING DRAWING
PROJECT
(AutoCAD Drawings)
VALUE: 45%
DUE DATE: PART- A IS DUE ON 26 MAY 2017 ( 4 PM )
AT THE ASSIGNMENTS OFFICE, LEVEL 2, BUILDING 204
PART - B WILL BE COMPLETED IN THE LAB IN WEEK 12
DURING YOUR REGISTERED LAB SESSION.
This project consists of two parts (A & B).
PART A: Home work (15 %)
PART B: In-class assessment (30 %).P a g e | 2
NOTE:
Late assignments will not be accepted.
There is NO provision for submitting manual drawings for this
assignment.
The lecturers and lab tutors are not allowed to comment on
an assessment before it has actually been submitted for
assessment.
This is an individual, not a group assignment. This is to be done
on your own. Do not discuss it with other students.
Protect your work:
Plagiarism is a serious offence. Curtin imposes severe penalties,
including expulsion from the university.
Do not allow others access your AutoCAD file(s).
You must not share your drawings, including the layouts/title
blocks, with other student(s).P a g e | 3
BACKGROUND
The primary objective of the project is to enhance your skills in creating working
drawings of a product.
A product consists of a number of components assembled together. The
manufacturing of a product requires shape and size description of the parts of
the product, quantity of each component, and assembly / arrangement
drawings.
There are some parts, such as nuts, bolts and washers that are used in
conjunction with the dedicated components (designed for a particular
product). Such components are called standard parts and are commercially
available.
A product’s technical documentation includes detail drawings of individual
components, specifications for standard parts, and assembly drawings. Detail
drawings provide complete information required for manufacturing of
individual parts, whereas assembly drawings contain the following information:
- Assembly / arrangement description
- Part name, code, quantity and drawing reference of individual
components
- Specifications for standard parts
This project gives you complete freedom in terms of selecting the necessary
views and the drawing scale to describe the given product and its
components. You may find the product and its component less complex when
compared to the ones that you described in the previous assignments.
However, the project would provide you enough space to demonstrate your
ability to apply the principles and standards that govern the interpretation of
engineering drawings.
It is strongly recommended that you should conduct a thorough analysis of the
given product before start creating drawings. Following aspects would be
helpful in brainstorming the ideas and concepts:
- Do you need more than one view? How many?
- What are the views that best describe the object?
- Determine which parts should be represented as sectional views on your
drawings - type of sectioning!
- Do you need to enlarge any of the drawings or reducing the drawing is more
appropriate? Select an appropriate standard drawing scale.
- What sheet size would be appropriate?
Consider the parameters, such as object dimensions, scale, number of
views, and margins etc. The drawing sheet size is determined based on the
amount of information you plan to provide.P a g e | 4
INSTRUCTIONS AND REQUIREMENTS
1. Prepare a complete set of working drawings:
- Create dimensioned detail drawings of the specified non-standard
components (one drawing per sheet).
- Create an orthographic general assembly drawing with parts list on one
sheet.
2. When preparing the assembly drawing, use separate balloons and numbers
for each part in each view or use only one balloon in the view that most
clearly identifies the part. It is also essential to distinguish between parts
when applying section lines (hatching) to the components.
3. When preparing detail drawings, identify every drawing by listing the part
name and number. This must be consistent with parts list on assembly
drawing.
4. Create all drawings in THIRD-ANGLE PROJECTION system*. FAILURE TO
COMPLY WITH THE GIVEN PROJECTION SYSTEM WILL ATTRACT ZERO MARK.
5. Drawing elements, including the sheet layout and title block, shall conform
to the specifications given in the lecture notes or Australian drawing
standards.
6. Drawings of standard parts are not required. However, complete
specifications for such components must be provided in the parts list.
7. Drawings should be created on AutoCAD and need to be complete in all
aspects, including dimensioning. Incorrect / incomplete dimensioning will
not be accepted.
8. Where necessary, views should be labelled appropriately.
9. Centre your drawings in the drawing area.
10.Leave a space of about 50 mm between views. Also, leave a reasonable
space between the views and borders.
11.The drawing elements, such as object features, dimensioning elements, title
blocks, labels, scale and notes must be legible on all drawings.
12.A half-page executive summary reflecting the project objective,
methodology and learning outcome needs to be included.
13.Provide explanations and assumptions, if any, on a separate sheet.
14.The report shall also include a title page (displaying your name & ID,
assignment title, unit name etc.) and a table of contents.
15.No hand-written pages. Avoid printing on both sides of a paper.
* It is recommended by AS1100.101 that only the third angle method of orthogonal projection be used.P a g e | 5
PLOTTING / PRINTING
Single side printing only.
Black and white printing only. NO COLOUR PRINTING.
The lines, characters and symbols shall be legible on the drawings. Selecting
light colours for AutoCAD layers may result in a faded output when printed
in black & white.
Check LTSCALE and PSLTSCALE settings if the hidden lines / centre lines don’t
display properly.
The drawings created using the student version of AutoCAD may contain
Autodesk’s Educational Version Banner/Stamp. It is not an issue.P a g e | 6
REPORT REQUIREMENTS
Your report shall meet the following requirements:
1. Curtin’s official ASSIGNMENT COVER SHEET (A4 page portrait style).
Download it from https://esc.curtin.edu.au/Applications/assignments/.
Contact the assignments office if the link doesn’t work.
2. Assessment and Feedback Specification (A4 portrait). Download this
from Blackboard.
3. A title page – displaying your name & ID, assignment title, unit name etc.
(A4 page portrait style).
4. Executive summary (max 300 words on a separate A4 sheet portrait
style). It’ll include project objectives, methodology and learning
outcomes.
5. Table of contents (on a separate A4 sheet – portrait style).
6. Assumptions / explanations, if any, on a separate A4 page (portrait style).
7. Printed copies of all AutoCAD drawings.
8. All pages of the report should be placed in HORIZONTAL-READ position
and stapled in the UPPER-LEFT corner. Fold A3 sheets to A4 after you have
stapled all the sheets together. Refer to the document titled “How to bind
your report” on Blackboard.
9. The report shall be organised in the following order:
- Cover sheet.
- Assessment and Feedback Specification,
- Title page.
- Executive summary.
- Table of contents.
- Assumptions / explanations, if any.
- Assembly drawing.
- Detail drawings in order (Part 1, Part 2, …..).
DO NOT USE FOLDERS OR PLASTIC SLEEVES.
The report shall contain no handwritten pages.P a g e | 7
MARKING
A drawing will be given no marks if it contains any of the following:
- Incorrect projection system
- Incorrect line types
- Non-standard scale
- Incorrect/incomplete dimensions
- Too many errors
- Badly cluttered drawing
More than 60% marks will only be given if the project report addresses all of
the requirements, and it is presented professionally.
The drawings that demonstrate correct application of a wide range of
drawing elements/techniques will be rewarded accordingly.
PART – B
Part B will require creating drawings of two objects. This may include
assembly drawings, sectional and auxiliary views.
It requires submitting DWG and PDF files of your drawings. The submitted files
shall NOT contain any construction lines or viewport boundary. The PDFs shall
be in BLACK and WHITE.
The drawing requirements, as outlined in this document, are applicable to
both parts (A and B) of the project.
You will not be allowed to access Internet, your OASIS account, Blackbaord
or any information on the “I” drive of the PCs in the lab.
Laptops will not be allowed in the lab.
The following material will be allowed in the lab: Lecture notes, drawing
standards, GLAs, AutoCAD templates/master files, title blocks / layouts etc.
This material can be on a flash drive or in print format.
It will be helpful if you bring A4, A3 and A2 drawing templates with you.
Check that your templates are compatible with the version of the AutoCAD
installed on lab PCs.
A sample tile page for part-B is available on Blackboard.
NOTE:
You must be able to create PDFs of the drawings as submitting .DWG and .PDF
files is an essential requirement for Part B.P a g e | 8
PROJECT RESULTS
The project results will be available when you receive the official notification of
your final results.
LATE ASSESSMENT POLICY
By default, a late assessment will attract ZERO mark. Under special
circumstances, such as medical emergency or bereavement, students may
apply with supporting evidence for a waiver of this default late penalty. The
request for an extension will be reviewed for approval by the unit coordinator
or Head of Department. Such applications are to be lodged BEFORE the
original assessment due date using the assessment extension request form. A
request submitted without the extension request form will not be considered.P a g e | 9
SHAFT SUPPORT ASSEMBLY
Figure 1 shows a SHAFT SUPPORT ASSEMBLY, which is made of several parts,
including standard components. The specifications for all parts are given in
Table 1:
Table 1: Components of shaft support assembly
PART
NO
NAME MATERIAL DETAIL
DRAWING
REQUIRED
1 BASE 1020 STEEL YES
2 FORK 1020 STEEL YES
3 POST 1020 STEEL NO*
4 SLEEVE 1020 STEEL NO*
5 BUSHING BRASS NO*
6 SET SCREW SLOTTED HEAD
CONICAL POINT M10 X 1.5
STEEL YES
7 REGULAR HEX NUT M10 X 1.5 STEEL NO#
8 HEX SOCKET HEAD SET SCREW M9
X 1.25 LENGTH 9
STEEL NO#
9 HEX SOCKET HEAD SET SCREW M7
X 1 LENGHT 9
STEEL NO#
* For the assignment, the drawing of this component is not required. In practice,
drawings of all dedicated components are created.
# The components 7, 8 and 9 are standard components.P a g e | 10
Create the following drawings:
A general assembly drawing (orthographic views) – a sectional view is
required. Draw as many views as necessary to describe the product. The
assembly drawing must show all the nine components assembled.
Detail drawings of the specified dedicated components (refer to Table 1).
Where necessary, provide sectional views.
o The detail drawing of part # 1 (BASE) must include a HALF SECTIONAL
view.
Standard components:
Refer to the lecture notes to work out the dimensions of standard parts. Your
best judgment will be acceptable if correct size of a standard part is not
available.
The representation of standard parts will be acceptable if they appear to
be similar to the ones shown in Figure 1. However, correct representation of
screw threads is essential.
NOTE:
All representations, including the screw threads, shall conform to Australian
drawing standards.
Some of the figures may require missing information to be developed. If
dimensions are missing, determine what they should be by their relationship
to other parts.
If required, the given sizes can also be modified.
All changes / modifications must be stated on a separate A4 page
attached to the report.P a g e | 11
FIGURE 1: SHAFT SUPPORT ASSEMBLY
FAO – FINISH ALL OVER (Don’t worry about indicating this information on your drawings).P a g e | 12
OPTIONAL # 3
The drawing on the next page is not part of the
Engineering Drawing Project.
You can complete and submit it with the project
drawings if you want to do it as a substitute to
any or all of the 8 to 10 lecture quizzes.
ONLY a General Assembly Drawing is required.P a g e | 13
SHAFT CLAMP
Figure 2 shows a SHAFT CLAMP. The components and their specifications are
given in Table 2.
Table 2: Components of Rocker Tool Post
PART NO NAME MATERIAL QTY
1 UPPER SADDLE 1015 STEEL 1
2 LOWER SADDLE 1015 STEEL 1
3 HEX SOCKET HEAD SCREW 1040 STEEL 2
4 HEX JAM NUT M8 X 1.25 1040 STEEL 2
Create the following drawings:
A general assembly drawing - orthogonal view(s). The assembly drawing must
contain a sectional view. (Remember: The assembly drawing shall show all the
components assembled).
NOTE:
All representations, including the screw threads, shall conform to Australian
drawing standards.
Some of the figures may require missing information to be developed. If
dimensions are missing, determine what they should be by their relationship
to other parts.P a g e | 14
FIGURE 2: SHAFT CLAMP
DESCRIPTION OF ABBREVIATIONS:
CHAM: CHAMFER
STL: STEEL
CBORE: COUNTERBORE