LearnEasy ASSESSMENT DOCUMENT

 MEM30033A

MEM30033A: Use computer-aided design (CAD) to create and display 3-D models
Nominal Hours: 36 | Diploma/Adv Dip: Elective (Group 2) | Competency Based  
Assessment Plan A: (Two Semesters: 36 weeks)
Updated Nov 2015

All tasks are "Must Pass"

WARNING! Watch out for the 3rd column "Assessment Task" This tells you what you need to do.  For example, in Exercise 6: Support Block (p16)   Part: This means you only need to make a 3D model (.ipt)
Bracket (p18)   Part+drg
: This means you need to make a 3D model (.ipt) AND and drawing (.idw)

Getting Started: 

A simple model to get started in Inventor 2014...

First 3D Model (Inventor First Part) 4:52 mins

A page of tutorials and videos to get you started....

Getting Started | Matt videos

# Topic Description and Link to Notes Assessment Task Lesson wk. Due wk. Work Load% Comp.
AEXERCISES - - - - -
1

Basic Extrusion
Extrusion - solid and cut extrusions. Sketch dimensioning and constraints. Workplanes
The Ribbon (Inventor Tutorial 1)
Sketch Constraints (Inventor Tutorial 2)
Starting a Rectangular Sketch 30 secs
Boundy 3.3 CI Bench Block 4.3 mins
Boundy 3.2 Brass Step 3.8 mins
Boundy 3.4 CI Bracket 4.7 mins
Boundy 3.6 CI Support 5.8 mins

Basic Extrusion Part A
Boundy 3.3, 3.4, 3.2, 3.5, 3.6
Parts
1 3 5% C1.1, C2.1, C2.2, C2.3, C3.1, C6.1
2 Basic Drawings
Drawing Checklist
Orthographic projection & dimensioning
Drawings (Inventor Tutorial 6)
Placing Views 2 mins
Adding Dimensions 4 mins
Basic Extrusion Part B
Boundy 3.3, 3.4, 3.2, 3.5, 3.6
Drawings
3 5 5% C3
3 Roller Bracket
5 Easy Parts + 2 components
Roller (Revolved Extrusion, part mirror) 2 mins
Roller Holes (Pattern of holes) 2 mins
Bracket 9:33 mins(Extrusions, mirror, fillets, tricks)
Roller Bracket
Parts only (all 7)
6 8 5% C2.3
4Roller Bracket Assembly
Refer to: Assemblies (Inventor Tutorial: Getting Started)
Roller Sub-Assembly (Place Part, Insert) 74 secs
Roller Full Assembly (Mirror, SubAssembly) 3:40 mins
Roller Bracket Assembly
Assembly + Assembly Drawing
11135%C1.1, C2.1, C2.2, C2.3, C3.1, C6.1
5 Motor
Motor Gear (Pattern) 3 mins
Motor Tabs (Workplane, mirror, hole) 3.5 mins

Battery Holder
Battery Holder (Shell, multiple mirror) 5 mins
Motor  Part+drg+render
Battery Holder   Part+drg
7 9 10% C2.3, C5
6

Selected Parts and Drawings;
Read next column carefully (i.e. 8 .ipt + 4 .idw = 12 files)
 Inventor_Exercises.pdf  (7MB)
I Block: (Face Draft) 2 mins
UV Joint Plate: (Workplane and pattern) 6 mins
Support Block: (Workplane by points) 4.5 mins
Angle Block: (Angle Wplane, Extrude to next) 4.5 mins
Bearing Retainer: (Revolved, Holes, Pattern) 4 mins
Tee Junction: (Dim variables, Shell out) 6 mins
Gauge Box: (Sheet Metal. Holes diam 4) 6 mins

Inventor_Exercises.pdf
1. I Block (p4)   Part
2. Universal Joint Plate (p12)   Part
3. Support Block (p16)   Part
4. Bracket (p18)   Part+drg
5. Angle Block (p19)   Part+drg
6. Bearing Retainer (p29)   Part+drg
7. Tee Junction (p35)   Part
8. Gauge Box (p50)   SMetal+drg
9 12 30% C1.1, C2.1, C2.2, C2.3, C3.1, C6.1
7

Conceptual sketch of general arrangment.

Based on TORE - Japanese Gameshow

Hand-drawn sketch/es. 10 12 10% C1.1, C1.2
  SUB-TOTAL - - - 70% -
B1 CLASS PROJECT 2015 (Mummy Wrapper) - - - - -
MW2

Assembly model of main structure and arm of the mummer wrapper project. Must have roatating arm and other movable components (such as the cloth rolls). Detailing of some hardware should be included but a fully detailed completed assembly model is not expected. As a conceptual assembly model with motion capability, you should demonstrate appropriate use of sub-assemblies, and provide suitable constraints to allow dragging of parts or sub-assemblies (e.g. arm rotation, up/down movement of rolls).

Alternative: Assemble a human model, imported from the internet (e.g. GrabCad) and scale it to appropriate percentile (95% stature). You can import files of type Parasolid, step, iges, but native Inventor models would be easier. Use this one: man and pedals.STEP (Open>Import>save. Then constrain the assembly)

1. Assembly model (*.iam)

2. Assembly drawing (*.idw) with main dimensions - height, width, clearances.

15 18 30% C1.1, C2.1, C2.2, C2.3, C3.1, C4.1, C5.1, C6.1, C6.2
- SUB-TOTAL (B1) - - - 30% -
B2 or.... PERSONAL PROJECT 2015 - - - - -
PP1

The purpose of the project is to model a real assembly (or potentially real), and to demonstrate advancement of Inventor knowledge. The following list is considered as advancement;

  1. Assembly modelling with large number of moving parts/ subassemblies/edit-in-assembly mode
  2. Advanced part feature modelling - sweep, loft, helical etc
  3. Basic stress analysis
  4. Advanced sheet metal features, flat pattern
  5. Basic Excel driven part features
  6. Other additional learning (as discussed with teacher)

Assembly

and/or other files.

15 18 30% C1.1, C2.1, C2.2, C2.3, C3.1, C4.1, C5.1, C6.1, C6.2
- SUB-TOTAL (B2) - - - 30% -
B3 or... DEFAULT PROJECT 2014 (Maze Robot) - - - - -
MR1

Gearbox Assembly
May be substituted for an equivalent alternative part in student's robot project (check with teacher if OK).
Centre: Pt 1 (Autocad > Inventor) 5:20
Centre: Pt 2 (Shared sketch, Mirror) 6:29
Side: Pt 1 (Shared sketch, Boolean extrusion) 4:53
Side: Pt 2 (Tricky bits, but not too hard.) 16:49
Side: Pt 3 (Overview: Feature by feature) 4:12

Gearbox  
Parts + Assembly
12 15 10%

 

C1.1, C2.1, C2.2, C2.3, C3.1, C6.1

MR2 Assembly drawings and presentation images (renderings) of Robot. Exporting to AutoCad. Robot Drawings and Renderings
Robot Base CNC  Exporting 2D
15 18 10% C3, C5
MR3

Assembly model of Robot project.
Base Part 1 (Assemble new part) 2:22 mins
Base Part 2 (Edit-In-Place) 2:03 mins

Robot CAD  Assembly1518 10%C1.1, C2.1, C2.2, C2.3, C3.1, C4.1, C5.1, C6.1, C6.2
- SUB-TOTAL (B3) - - - 30% -
- TOTAL - - - 100% -

Quiz = Computer Based Testing: Typically consists of practice mode (iTester) and assessment mode (Moodle).
Exam = Written test submitted on paper, all working shown neatly.

*Where applicable.

Due Week is the recommended completion week for each assignment. (Based on 2 hrs/week, completing 36 hour subject in 18 weeks). For a 9 week schedule, all due dates must be halved.

 

Prerequisites
MEM16008A Interact with computing technology
MEM30001A Produce basic engineering graphics

When you have completed this unit of competency you will have developed the knowledge and skills to set up a three dimensional CAD environment, create/display different three dimensional (3D) views, extract mass and area properties of a 3D model, apply basic rendering techniques such as surfaces, textures, shades and shadows, to a 3D model and, finally, save completed drawing files in various computer software formats.


UNIT INFORMATION MEM30033A:

Use computer-aided design (CAD) to create and display 3-D models

Elements and Performance Criteria

1. Confirm drawing requirements

1.1

Confirm purpose, scope and information and presentation requirements for drawing

1.2

Identify, interpret and analyse available information relevant to project and work requirements, and identify and address further information needs

1.3

Identify computing equipment and software used in the organisation

1.4

Identify work flow and procedures for work supervision and confirm communication requirements through project

1.5

Examine requirements for presentation of drawings

2. Create and display 3-D views

2.1

Set up a 3-D environment on the screen to allow multiple viewing

2.2

Create 3-D views on the screen by manipulation of drawing planes and insertion of 3-D geometric shapes

2.3

Draw on any plane of the 3-D view

2.4

Use editing functions to modify 3-D geometric shapes in creating 3-D views

2.5

Produce wire line, surface and solid face displays in isometric, perspective and orthographic projections

3. Detail 3-D model

3.1

Extract the mass and surface area of a given solid model made from a nominated material

3.2

Apply basic rendering techniques to render solid model to a specified set of criteria

4. Save completed drawing file in various formats

4.1

Save file in an appropriate format to enable retrieval and use in a CAD system

4.2

Save file in other formats to enable retrieval in other software applications

Required Skills and Knowledge

Required skills

Required skills include:

  • reading and interpreting engineering specifications
  • organising information
  • using computer and peripherals
  • using CAD program
  • saving 3-D modes in various file formats
  • preparing drawings in plane orthogonal, isometric projection or equivalent

Required knowledge

Required knowledge includes:

  • region modelling techniques
  • solid modelling techniques
  • development of sectioned models
  • use of cutting plane
  • use of cross hatching
  • use of pre-drawn library files and primitives to produce a 3-D model
  • use of third level software to produce 3-D models
  • how to extract mass and area properties
  • how to extract area properties from region models
  • application of basic rendering techniques to a 3-D model

 


UNIT INFORMATION MEM30004A:

Use CAD to create and display 3D models

Elements of Competency and Performance Criteria

1. Set up a three dimensional environment 

1.1  

Set up a three dimensional environment on the screen to allow multiple viewing.

2. Create three dimensional views

2.1

Three dimensional views are created on the screen by manipulation of drawing planes and insertion of three dimensional geometric shapes.

 

2.2  

Any plane of the three dimensional view is drawn on.

2.3
 

Editing functions are used to modify three dimensional geometric shapes in creating three dimensional views.

3. Display three dimensional views

3.1
 

Wire line, surface and solid face displays are produced in isometric, perspective and orthographic projections.

4. Extract mass and area properties of a 3D model

4.1
 

The mass and surface area of a given solid model made from a nominated material is extracted.

5. Apply basic rendering techniques to a 3D model

5.1
 

A solid model is rendered to a specified set of criteria.

6. Save completed drawing file in various formats

6.1
 

File is saved in an appropriate format to enable retrieval and use in a CAD system.

6.2
 

File is saved in other formats to enable retrieval in other software applications.

Glossary
Multiple viewing Includes top views, front and side views, and a general three dimensional view
Three dimensional geometric shapes May include arcs and lines, spheres, cones, cylinders and boxes

Knowledge and Skills
Skills

Look for evidence that confirms skills in: 

  • reading and interpreting engineering specifications
  •  organising information
  •  using computer and peripherals
  •  using CAD program
  •  saving 3D modes in various file formats
  • preparing drawings in plane orthogonal, isometric projection or equivalent
Knowledge Look for evidence that confirms knowledge of:
  • region modelling techniques.
  • solid modelling techniques
  • development of sectioned models
  • use of cutting plane
  • use of cross hatching
  • use of pre-drawn library files and primitives to produce a 3D model
  • use of third level software to produce 3D models
  • how to extract mass and area properties
  • how to extract area properties from region models
  • application of basic rendering techniques to a 3D model
Delivery Plan
1. Three dimensional environment
  1. multiple viewing
2. Creation of views
  1. drawing planes
  2. geometric shapes 
  3. use of any plane
  4. editing functions 
3. Display of views
  1. wire line 
  2. surface and solid face displays: isometric, orthographic 
4. Partling
  1.  terminology: region /  solids /  wire frame 
  2. region modelling techniques: creating a primitive /  editing regions 
  3. solid modelling techniques: creating solid primitives /  editing solid primitives /  converting region models to solid models 
  4. composite models:  create composite regions /  create composite solids 
  5. sectioned models:  cutting plane /  cross hatching 
  6. pre-drawn library files 
5. Mass and area properties
  1. nominated material 
  2. extract area properties
6. Rendering techniques
  1. specified set of criteria 
  2. lights, views, scenes etc 
  3. materials and surface finish options
7. Completed drawing
  1. hard copies 
  2. retrieval and use 
  3. saving in other formats


RESOURCES

Teaching and Learning Resources

TAFE library catalogue is available online: TAFE NSW Library Network Catalogue
Useful reference materials/learning resources are:

MEM05 TAFE NSW Unit Resource Manual for this unit of competency.
Resource Distribution Centre,
Unit 3/61-71 Rookwood Rd,
Yagoona NSW 2199
Ph 9793 3347, Fax 9793 3242

    * Students may need to supply a medium for storing their CAD files such as a USB memory stick.
    * CAD program reference manuals, help, tutorials.
    * Also consult websites, forums, web searches, Wiki sites, web groups etc related to the particular CAD program.
    * Australian standards:  AS 1100.201-1992. Technical drawing – Mechanical engineering drawing.
    * Text (reference) A.W. Boundy: Engineering Drawing