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Elements and Performance Criteria

1. Write program
   • Engineering drawings are understood and interpreted to define optimum tool path geometry.
   • Tool path is programmed using advanced operations, canned cycles and sub-routines or other appropriate sub-routines within system.
   • Program is written in standard code format, and confirmed and edited as necessary using appropriate routine and standard operating procedures.
   • Program is stored in accordance with standard operating procedures.
   • Operation sheet is produced to standard operating procedures.
2. Trial program
   • Program is downloaded, and machining parameters that may include wire offset, wire speed, power settings are selected.
   • Machine is prepared, work piece are loaded and aligned, datum and reference points are established in accordance with standard operating procedures.
   • Machine is operated in appropriate mode to test and prove program, work piece positioning.
   • Finished components are checked for conformance with drawing specifications.

Required Skills

Required skills

Look for evidence that confirms skills in interpreting drawings specifications and instructions calculating coordinates of all relevant points on the part or product to be produced storing programs producing NCCNC operation sheets downloading and verifying NCCNC program setting machine parameters mounting work holding fixtures devicestools testing and proving NCCNC program checking parts or products produced for conformance with specifications

Required knowledge

Look for evidence that confirms knowledge of the 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 operations to be programmed the reasons for selecting the chosen tool paths and sequence of operations the zero point of the wire cut machine the canned cycles and subroutines accessible in the particular NCCNC machine the application of each canned cycle and subroutine available where appropriate the canned cycles andor subroutines to be used in the NCCNC program the reasons for selecting the chosen canned cycles andor subroutines the standard codes used in the writing of NCCNC programs the applications of standard codes in NCCNC programming procedures for writing NCCNC programs in standard code format procedures for storing NCCNC programs procedures for completing NCCNC operation sheets the information to be included in NCCNC operation sheets procedures for downloading NCCNC programs procedures for verifying downloaded NCCNC programs the machining parameters that may be entered into the machine controller the effect of varying the machining parameters on the product or part produced work holding fixturesdevicestools procedures for mounting work holding fixturesdevices tools the location of the required work holding fixturesdevicestools relative to the machine datum or zero purpose of datum setting prestart checks safety features and equipment of the NCCNC machine the purpose and function of the safety features andor equipment the machine mode appropriate to the testing and proving of the NCCNC program and the checking of the position of the work piece the procedures to be followed when using the machine in this mode the relative position of the work piece to the machine datum or zero the specifications of the part or product the measuring equipmenttechniques to be used to check for conformance to specification

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 perform programming of CNC wire cut machines 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 of CNC wire cut machines 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.
Program	Includes setting of speeds, tolerances, taper angles, macros, nesting tool paths, chained linear tool paths and differential profiles

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