Course Title: Program a 3D milling machine centre

Part B: Course Detail

Teaching Period: Term1 2013

Course Code: MIET7314

Course Title: Program a 3D milling machine centre

School: 130T Vocational Engineering

Campus: City Campus

Program: C6069 - Advanced Diploma of Engineering Technology

Course Contact: Program Manager

Course Contact Phone: +61 3 9925 4468

Course Contact Email: engineering-tafe@rmit.edu.au


Name and Contact Details of All Other Relevant Staff

Teacher: Alan Wazir

Tel. No.; +61 3 9925 4153

Email: alan.wazir@rmit.edu.au

Nominal Hours: 60

Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.

Pre-requisites and Co-requisites

None

Course Description

This unit of competency sets out the knowledge and skills required to produce basic 3D CAN and NC programs for CNC milling machine centre.


National Codes, Titles, Elements and Performance Criteria

National Element Code & Title:

VBP255 Program a 3D milling machine centre

Element:

Construct 3D components geometry for 3D milling.

Performance Criteria:

1.1 Operating principles of 3D CAM packages
1.2 3D CAM file types and support files
1.3 Customising system variables
1.4 Customising menus and system defaults
1.5 Identifying relevant machining surfaces from 3D component or drawing,
1.6 Creating, editing, copying, imaging, scaling, modifying,
1.7 Rotating and deleting 3D component geometry including:
entities/elements, lines, arcs/circles, ellipses, splines/polylines.
1.8 Constructing simple 3D wire frame, surface and /or solid model
geometry using: construction planes, construction axes, layers/levels,
viewing angles, machining axes/tool axes
1.9 Geometry/toolpaths for: contour, ruled, loft, revolution/spun,
swept/translated, coons/form patch
1.10 Identifying boundary elements and types of 3D machining surfaces
1.11 Analysing, modifying and deleting file elements
Retrieving and saving files in various formats

Element:

Create and modify 3D CAM milling program files.

Performance Criteria:

1.1 Producing toolpaths
1.2 Graphically proving toolpaths on screen and hard copy
1.3 Purpose of a post processor
1.4 Converting milling toolpath programs to CNC machine
1.5 3D Contour, ruled, swept or translated, lofted, revolved or spun and coons or form patch surfaces
1.6 Reverse posting from CNC to package specific file
1.7 Changing post processor type
1.8 Reposting file for different machine
1.9 Transferring files to CNC machining centre

Element:

Identify task requirements.

Performance Criteria:

1.1 Identifying and clarifying task requirements
1.2 Identifying specifications and required resources
1.3 Planning required steps to generate code files
1.4 Reviewing and revising outcomes against task objectives and
requirements
1.5 Identifying why task objectives/requirements were/were not met
1.6 Identifying corrective action

Element:

Transfer and manage 3D CAM files.

Performance Criteria:

1.1 Changing post processor type
1.2 Reposting file for different machine
1.3 Transferring files to CNC machining centre

1.4 Storing and filing of NC files

Learning Outcomes


Construct 3D components geometry for 3D milling.

Create and modify 3D CAM milling program files.

Identify task requirements.
Transfer and manage 3D CAM files.


Details of Learning Activities

The learning activities in this class incorporate/comprise of:
Face to face classes where the student is required to take part in the class activities, discussions, tutorials, and lectures;
Homework using the supplied software;
Practical classes (Workshop practice);
Industrial visits;
Online research, and assignments.


Teaching Schedule


Please note: While your teacher will cover all the material in this schedule, the weekly teaching and assessment order is subject to change depending on class needs and availability of resources.

Session 01: Identifying Task requirements - Revision, occupational health and safety, setting up the CAM software on the home pc, class work format, test dates, exercise completion dates .

Session 02: Construct 3D components geometry for 3D milling
- Accessing the full range of menus, system variables and software defaults, customise to create/manipulate 2.5D and 3D geometric elements, construction planes, layers, viewing angles, Identify and following enterprise procedures.

Session 03: Construct 3D components geometry for 3D milling- construction planes, layers, viewing angles, toolpaths, surfaces. Set exercises.

Session 04: Construct 3D components geometry for 3D milling- - create and/or modify surfaces and solid component geometry using graphical drawing tools in CAM package; Create set-up sheets/job plans according to enterprise procedures; set exercises to be completed as required.

Session 05: Construct 3D components geometry for 3D milling- - create and/or modify 3D component geometry using graphical drawing tools in CAM package; Create 2.5D and 3D machine tool paths for a range of common operations for given machine tool; graphically prove tool movements on computer and edit as necessary; convert tool paths to NC program using the relevant post processor; must complete set exercises as required.

Session 06: Construct 3D components geometry for 3D milling- OH&S requirements for carrying out and completing the work on the NC/CNC machine in the workshop; using the machine manual efficiently; Create 2.5D an 3D component geometry using graphical drawing tools in CAM package; Create 2.5D an 3D milling toolpaths for a range of common operations for given machine tool; graphically prove tool movements on computer and edit as necessary; convert tool paths to NC program using the relevant post processor; setup the job and machine the component on NC machine; must complete set exercises as required.
Session 07: Construct 3D components geometry for 3D milling-- Create and/or modify 2.5D an 3D component geometry (surfaces and solids) using graphical drawing tools in CAM package; Create 2.5D and 3D milling toolpaths for a range of common operations for given machine tool; graphically prove tool movements on computer and edit as necessary; convert tool paths to NC program using the relevant post processor; produce component on CNC machine and make adjustments as necessary to achieve accuracy and size; must complete set exercises as required.
Session 08: Construct 3D components geometry for 3D milling- - Create and/or modify 2.5D and 3D component geometry (surfaces) using graphical drawing tools in CAM package; Create 2.5D an 3D milling toolpaths for a range of common operations for given machine tool; graphically prove tool movements on computer and edit as necessary; convert tool paths to NC program using the relevant post processor; produce component on CNC machine; must complete set exercises as required, how to manage and store cam files.

Session 09: Construct 3D components geometry for 3D milling-- Set exercises.

Session 10: Construct 3D components geometry for 3D milling- Set exercises.

Session 11: Construct 3D components geometry for 3D milling-- Set exercises.

Session 12: Construct 3D components geometry for 3D milling-- Set exercises.

Session 13: Construct 3D components geometry for 3D milling-- Set exercises.

Session 14: Construct 3D components geometry for 3D milling-- Set exercises,

Session 15: Construct 3D components geometry for 3D milling-- - - Last week to submit set practical exercises.

Session 16: Practical exercise marking and feedback


Learning Resources

Prescribed Texts


References


Other Resources

Engineering tooling catalogues,
Machinery’s Handbook,
Fitting and Machining Handbook,
Engineer’s Black book,
Zeus pocket book.


Overview of Assessment

Various written assignments/tests and practical exercises/projects 100%


Assessment Tasks

This subject has ongoing assessments for the set work. The exercises and practical work will be marked weekly.
Various written assignments, tests, set class work & practical exercises - 100%


Assessment Matrix

Other Information

Study and learning Support:

Study and Learning Centre (SLC) provides free learning and academic development advice to all RMIT students.
Services offered by SLC to support numeracy and literacy skills of the students are:

assignment writing, thesis writing and study skills advice
maths and science developmental support and advice
English language development

Please Refer http://www.rmit.edu.au/studyandlearningcentre to find more information about Study and learning Support

Disability Liaison Unit:

Students with disability or long-term medical condition should contact Disability Liaison Unit to seek advice and support to complete their studies.

Please Refer http://www.rmit.edu.au/disability to find more information about services offered by Disability Liaison Unit

Late submission:

Students requiring extensions for 7 calendar days or less (from the original due date) must complete and lodge an Application for Extension of Submittable Work (7 Calendar Days or less) form and lodge it with the Senior Educator/ Program Manager. The application must be lodged no later than one working day before the official due date. The student will be notified within no more than 2 working days of the date of lodgement as to whether the extension has been granted.

Students seeking an extension of more than 7 calendar days (from the original due date) must lodge an Application for Special Consideration form under the provisions of the Special Consideration Policy, preferably prior to, but no later than 2 working days after the official due date.

Assignments submitted late without approval of an extension will not be accepted or marked.


Special consideration:

Please Refer http://www.rmit.edu.au/browse;ID=riderwtscifm to find more information about special consideration

Plagiarism:

Plagiarism is a form of cheating and it is very serious academic offence that may lead to expulsion from the University.

Please Refer to: www.rmit.edu.au/academicintegrity/ to find more information about plagiarism.

Other Information:

All email communications will be sent to your RMIT email address and you must regularly check your RMIT emails.

Course Overview: Access Course Overview