The skills in this unit extend to writing basic programs to measure features of a part in a single work plane using a single probe. The program produced may be used on a range of coordinate measuring machines and would be suitably archived and backed up. Programs are trialled and edited as necessary. Work would be undertaken autonomously using predetermined standards of quality.

For programming using multiple probes and more than one plane, Unit MEM12022B (Program coordinate measuring machine [advanced]) should be selected. Appropriate levels of measuring, computer and engineering drawing skills should be selected with this unit.

Band: A

Unit Weight: 4

Path 1

MEM09002B

Interpret technical drawing

MEM12003B

Perform precision mechanical measurement

MEM12023A

Perform engineering measurements

ELEMENT

PERFORMANCE CRITERIA

1. Identify part program parameters

1.1. Job specifications and requirements are correctly established.

1.2. 1ppropriate units are selected to comply with specifications.

1.3. Part program name is specified according to standard operating procedures.

2. Establish single probe configurations

2.1. Single probe configuration is determined according to standard operating procedures.

2.2. Probe angles are determined and qualified in accordance with standard operating procedures.

3. Position/align component

3.1. Component/part is positioned and oriented correctly.

3.2. Manual alignment is created according to standard operating procedures.

3.3. Single Direct Computer Control (DCC) alignment is created according to standard operating procedures.

4. Measure features

4.1. Features are measured correctly.

4.2. Probe movement parameters are defined in accordance with standard operating procedures.

4.3. Basic features are dimensioned according to specifications.

4.4. Operator notes are reported.

4.5. Dimension descriptions are inserted.

5. Verify and back up the program

5.1. Execution and accuracy of program is verified according to standard operating procedures.

5.2. Program is edited, if required.

5.3. Results are output to various formats according to standard operating procedures.

5.4. Program is archived and backed up.

Required skills

Look for evidence that confirms skills in:

reading and interpreting information on written job instructions, specifications, charts, lists, drawings and other applicable reference documents

using methods of coordinate measurement

analysing and establishing part program parameters

checking and clarifying information

entering information onto proformas and standard workplace forms

navigating and entering data in applicable program software

checking for conformance to specifications

using precision measurement equipment

measuring components to specified tolerances

undertaking numerical operations, geometry and calculations/formulae within the scope of this unit

following verbal instructions

orally reporting routine information

selecting the correct units for the part program

identifying the part program in accordance with current identification/quality system

determining the probe configuration

calculating/determining and qualifying probe angles

positioning/aligning/securing component/part to appropriate orientation on CMM table and complying with probe configuration and calibrated angles

taking an appropriate number of hits to create an accurate manual alignment

demonstrating the correct procedure for creating DCC alignment

measuring the part features in the correct sequence and location in a single work plane

defining and verifying the parameters

correctly dimensioning basic feature such as circles, points etc.

producing and inserting explanatory notes for the operator

inserting all necessary dimension descriptions

running the part program and verifying the accuracy of the results

editing, where non-conformance is identified

outputting results to printer, disc or other format as required

archiving and backing up part program

Required knowledge

Look for evidence that confirms knowledge of:

the principles and methods of coordinate measurement

principles and interpretation of geometric tolerancing

the procedure for producing the part program

the specifications for the program

the criteria for selecting specific units

the procedures and parameters for naming programs

the procedure for determining probe configuration

the reasons for selecting single probe configuration

the procedure for determining/calculating probe angles

the correct procedure and parameters for qualification

the reasons for the specific location and aligning/securing the component/part

the method of securing/clamping

the methodology used to create manual alignment for the part

the procedure and reasons for creating a single DCC (Direct Computer Control ) alignment

the criteria for defining probe movement

the procedure for verifying correct probe movement

dimensioning techniques

the procedure for running the program

the procedure for verifying the results

editing process and explanations

the procedures used to output results to various formats

the method used to archive and back up the program

access limitations by personnel and quality control guidelines

hazards and control measures associated with using CMMs, including housekeeping

safe workplace practices and procedures

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 a coordinate measuring machine. 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 coordinate measuring 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, supervisor's 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

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.

Unit sector

Measurement

This unit contains employability skills.