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Elements and Performance Criteria

1. Identify NC/CNC machine program elements
   • Appropriate program elements are selected for machine controller.
2. Write NC/CNC machine program
   • Engineering drawings are understood and interpreted to define machine function and tool path geometry.
   • Coordinates are calculated as required for tool path or machine functions.
   • Advanced operations using canned cycles and sub-routines are selected and applied appropriately.
   • Program is written in standard code format in accordance with standard operating procedures.
3. Write NC/CNC operation sheet
   • Operation sheets are produced to specification in accordance with standard operating procedures which includes appropriate Australian standard where required.
4. Trial program
   • Machine is operated in manual mode to test and prove program.
   • Program is edited if necessary to adjust operation.
   • Components are checked to conform to specification.

Required Skills

Required skills

Look for evidence that confirms skills in reading interpreting and following information on written job instructions specifications standard operating procedures charts lists drawings and other applicable reference documents planning and sequencing operations checking and clarifying task related information calculating coordinates of all relevant points on the part or product to be produced writing NCCNC program in standard code format and incorporating where appropriate canned cycles and subroutines producing NCCNC operation sheets operating NCCNC machine in manual mode editing NCCNC program checking parts or products produced for conformance with specifications

Required knowledge

Look for evidence that confirms knowledge of elements of an NC/CNC program the function of elements in controlling the operation of an NC CNC machine machining operations to be performed in the manufacture of the given part or product the appropriate types of NCCNC machine to perform the required machining operations the machining operations to be controlled by the program to be written the tool paths to be followed when producing the part or product the sequence of machining operations to be programmed reasons for selecting the chosen tool paths and sequence of operations the zero point of the NCCNC machine the canned cycles and subroutines accessible in the particular NCCNC machine the application of each canned cycle and subroutine available the canned cycles andor subroutines to be used in the NCCNC program reasons for selecting the chosen canned cycles andor subroutines standard codes used in the writing of NCCNC programs applications of standard codes in NCCNC programming procedures for writing NCCNC programs in standard code format procedures for completing NCCNC operation sheets the information to be included in NCCNC operation sheets relevant Australian standards procedures for manual operation of the NCCNC machine the reasons for testing and proving the NCCNC program the procedures for editing the NCCNC program via the machine controller the effects of editing on the operation of the NCCNC machine and the part or product to be produced the specifications of the part or product the measuring equipmenttechniques to be used to check for conformance with specifications hazards and control measures associated with numerical and computer controlled machines including housekeeping safe work practices and procedures

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package
Overview of assessment	A person who demonstrates competency in this unit must be able to program multiple spindle andor multiple axis NCCNC machining centres Competency in this unit cannot be claimed until all prerequisites have been satisfied
Critical aspects for assessment and evidence required to demonstrate competency in this unit	Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria including required knowledge and be capable of applying the competency in new and different situations and contexts
Context of and specific resources for assessment	This unit may be assessed on the job off the job or a combination of both on and off the job Where assessment occurs off the job that is the candidate is not in productive work then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team The assessment environment should not disadvantage the candidate This unit could be assessed in conjunction with any other units addressing the safety quality communication materials handling recording and reporting associated with programming multiple spindle andor multiple axis NCCNC machining centres or other units requiring the exercise of the skills and knowledge covered by this unit
Method of assessment	Assessors should gather a range of evidence that is valid sufficient current and authentic Evidence can be gathered through a variety of ways including direct observation supervisors reports project work samples and questioning Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency The candidate must have access to all tools equipment materials and documentation required The candidate must be permitted to refer to any relevant workplace procedures product and manufacturing specifications codes standards manuals and reference materials
Guidance information for assessment

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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. Bold italicised wording, if used in the performance criteria, is detailed below. 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) may also be included.

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