Elements and Performance Criteria

RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts.
Where reference is made to industry codes of practice and/or Australian/international standards, the latest version must be used.
Context
This competency applies to all work environments and sectors within the plastics, rubber and cablemaking industry. It includes the operation of all relevant ancillary equipment where that equipment is integral to the machining process.
Procedures
All operations are performed in accordance with procedures.
Procedures include all relevant workplace procedures, work instructions, temporary instructions, job sheets, cutting lists, plans drawings, designs, manufacturer specifications and relevant industry and government codes and standards.
Tools and equipment
This competency includes use of equipment and tools such as:
multi axis router (includes CNC controlled router, two, three, four or five axis routers, moving bed or moving bridge)
stand-alone or integral computing systems
work clamps, jigs and fixtures (includes vacuum tables)
machine specific tools
relevant personal protective equipment
measuring devices.
Materials
Typical materials, include:
thermally formed sheet un-finished products (eg. polyester or vinyl ester sheets)
mould materials (eg solid timber, MDF, ply, other plastics)
other moulded, cast or fabricated products requiring multi-axis routing to produce the required final shape.
Programming
Programming includes:
converting a computer aided design to data points for separate loading to the router's controller
downloading or passing computer design data (CAD or CAM data) to the machining centre
digitising directly using a 'teach pendant'
other computer programming process.
Hazards
Typical hazards include:
dusts/vapours
slip and fall (such as due to swarf)
temperature (such as due to operating tools)
hazardous materials, including decomposing polymer machining
moving equipment (such as bridges, table, tools and components)
manual handling hazards
equipment operations.
Problems
'Anticipate and solve problems' means resolve a wide range of routine and non-routine problems, using product and process knowledge to develop solutions to problems which do not have a known solution/a solution recorded in the procedures.
Typical routine faults include:
machine settings, including tool speed and travel
work clamps, jigs and fixtures.
Non-routine faults, which may have multiple causes include:
material degradation
tool selection and design
intermittent faults.
Appropriate action for problems outside of area of responsibility may be reporting to an appropriate person.
Appropriate action for solving problems within area of responsibility includes asking questions and seeking assistance from appropriate persons/sources.
Variables
Key variables to be monitored include:
speeds, including tool speed and travel
surface finish and appearance
output rate
product integrity and general conformance to specification/sample.

The Evidence Guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, the range statement and the assessment guidelines for this training package.
Overview of assessment
A holistic approach should be taken to the assessment.
Assessors must be satisfied that the person can consistently perform the unit as a whole, as defined by the Elements, Performance Criteria and skills and knowledge.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
It is essential that competence is demonstrated in the knowledge and skills defined in this unit. These may include the ability to:
identify critical materials properties and machining process characteristics in relation to the process requirements and the end product
make adjustments to the process as required
identify and take appropriate action on problems and potential problems.
Consistent performance should be demonstrated. For example, look to see that:
machining production quality and output standards are met consistently the process runs consistently and smoothly, with the minimum need for human intervention
all safety procedures are adhered to.
Assessment method and context
Assessment will occur on an industrial multi-axis router and will be undertaken in a work-like environment.
Competence in this unit may be assessed:
using an appropriate, industrial router
in a situation allowing for the generation of evidence of the ability to recognise, anticipate and respond to problems
by using a suitable simulation and/or a range of case studies/scenarios
through a combination of these techniques.
In all cases it is expected that practical assessment will be combined with targeted questioning to assess the underpinning knowledge and theoretical assessment will be combined with appropriate practical/simulation or similar assessment. Assessors need to be aware of any cultural issues that may affect responses to questions.
Assessment processes and techniques must be culturally appropriate and appropriate to the oracy, language and literacy capacity of the assessee and the work being performed.
Specific resources for assessment
This section should be read in conjunction with the Range Statement for this unit of competency. Resources required include suitable access to an operating plant or equipment that allows for appropriate and realistic simulation. A bank of case studies/scenarios and questions will also be required to the extent that they form part of the assessment method. Questioning may take place either in the workplace, or in an adjacent, quiet facility such as an office or lunchroom. No other special resources are required.
Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.