Application
This unit of competency describes the outcomes required to prepare complex drawings using computer-aided techniques and capabilities including three dimensional (3-D) modelling and exploded assembly drawings. Work involves conversion of drawings for computer numerically controlled (CNC) applications and is completed in a forest products factory setting.
The unit applies to Designer (Manufacturing and Engineered Wood Products), Production Manager (Timber Truss & Frame), Designer (Timber Truss & Frame)
No licensing, legislative, regulatory, or certification requirements apply to this unit at the time of publication.
Elements and Performance Criteria
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions. |
1. Prepare for drawing | 1.1 Identify type of drawings to be created with computer-aided design (CAD) systems and clarify where required with appropriate personnel. 1.2 Select appropriate equipment and check for operational effectiveness in line with manufacturer's recommendations. 1.3 Plan CAD process in line with organisational procedures. |
2. Create exploded assembly drawings | 2.1 Obtain and complete drawing preparations. 2.2 Prepare 3-D models for all components. 2.3 Create perspective view of model in line with drawing specifications. 2.4 Explode model so all components are visible. 2.5 Label all individual components in line with organisational format. 2.6 Complete quality checks to ensure accuracy of outcomes. 2.7 Store drawings in line with organisational procedures. |
3. Create job sheets | 3.1 Select and complete job sheet preparations. 3.2 Set up job sheet template in line with organisational formats. 3.3 Create orthographic views and incorporate dimensions. 3.4 Specify sequencing of machine operations and operator requirements. 3.5 Prepare, review and test draft job sheets and amended as required. 3.6 Store job sheets in line with organisational procedures. |
4. Convert drawings for CNC applications | 4.1 Identify and check conversion requirements from CNC machine specifications. 4.2 Create layers and obtain additional information required for final conversion. 4.3 Assign drawing entities to relevant layers. 4.4 Convert drawings to required file type. 4.5 Store converted file in line with organisational procedures. 4.6 Record generation process and any equipment faults and report to appropriate personnel. |
Evidence of Performance
A person demonstrating competency in this unit must satisfy all of the elements, performance criteria and foundation skills of this unit.
generate and transfer complex drawings using a CAD system
generate these different types of computer-aided drawings:
3-D models
perspective - one, two and three point perspective drawings one, two and three point perspective drawings
orthographic and exploded views
plans
diagrams
charts
elevations
across the four drawings, incorporate these drawing entities:
lines
arcs
circles
text
hatch
dimensions
labels
convert each complex drawing for use in CNC machine operating centres
create a job sheet for each complex drawing
complete a basic report, for each drawing job, on drawing processes and equipment faults.
Evidence of Knowledge
A person competent in this unit must be able to demonstrate knowledge of:
common products for which computer aided drawings are produced, their features, use and standard material sizes
ways in which computer aided drawings are applied to CNC machines
CNC specifications and sequencing of machine operations for production of common products
for the drawing software:
available drawing types
system functions and capabilities
methods to input and amend design factors and other data
methods to:
prepare 3-D models
prepare perspective view
prepare othograpghic view and incorporate dimensions
explode models
label components
convert drawings for CNC applications
store and retrieve drawings and job sheets
formats for and inclusions of job sheets
organisational procedures specific to producing drawings and documents using computers:
producing job sheets
filing computerised drawings and documentation.
Assessment Conditions
The following resources must be made available:
computers, keyboards and industry current software programs used to produce computer aided drawings and job sheets
designs, plans and technical specifications
CNC machinery specifications
template job sheets
relevant personnel for the purposes of communicating information
organisational procedures for producing drawings and documents using computers
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessor requirements
Assessors must:
hold the appropriate assessor competency standards as outlined in regulations; and
be able to demonstrate vocational competencies at least to the level being assessed; and
be able to demonstrate how they are continuing to develop their VET knowledge and skills as well as maintaining their industry currency and assessor competence.
Foundation Skills
This section describes those core and employment skills that are essential to performance and are not explicit in the performance criteria. | |
Numeracy skills to: | calculate dimensions for product components and clearly represent these in drawings. |
Oral communication skills to: | ask open and closed probe questions and actively listen to clarify types of drawings to be completed. |
Reading skills to: | interpret detailed familiar and unfamiliar: organisational procedures for computer drawing activities templates CNC machine specifications. |
Writing skills to: | incorporate unambiguous notes, labels and instructions within drawings complete accurate basic reports on drawing processes and equipment faults. |
Planning and organising skills to: | plan and organise own work in logical sequence and manage own timing and productivity to complete drawings within deadlines. |
Problem-solving skills to: | complete quality checks throughout the drawing process, identify inaccuracies and amend recognise faulty equipment and resolve by reporting or rectifying... |
Technology skills to: | use a computer, keyboard and the system capabilities of CAD system software to generate and transfer complex drawings. |
Range Statement
Not Applicable
Sectors
Timber Manufactured Products
Timber Merchandising