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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Determine master requirements
   • Customer specifications are identified.
2. Prepare materials for production of wax model
   • Appropriate waxes are selected.
   • Stock materials are cut to appropriate length.
   • Appropriate tools are selected and used.
3. Produce wax models
   • Material use and production time are optimised.
   • Wax is sculpted to specifications.
4. Finish wax models
   • Imperfections in final wax model are minimised.
   • Surface finishes are applied.
5. Assess suitability of final wax product
   • Product is inspected for compliance with specifications.
   • Final product is modified as necessary.

Required Skills

Required skills

Look for evidence that confirms skills in clarifying customer specifications selecting appropriate method for construction of wax model for the supplied specifications selecting wax to suit construction method and required finish roughing out shapes with minimal wastage efforttime in final finishing fusing joints to achieve optimum strength and quality applying texture finishing high polishes etc using protective safety equipment inspecting product for correct tolerances allowance for casting shrinkage and finishing processes modifying original product to meet required tolerances and finishes reading and interpreting routine information on written job instructions specifications and standard operating procedures May include drawings using measurement skills needed to meet the requirements of this unit entering routine and familiar information onto proformas and standard workplace forms planning sequencing operations

Required knowledge

Look for evidence that confirms knowledge of factors affecting construction of wax model including type of wax hand tools method of construction final finish weight of finished product variations in end product and the relationship with wax types methods to be used to produce the outcome requirementsspecifications and minimise waste tools for preparing and producing wax for specific wax types and constructions importance of minimising material wastage and time taken during roughingfinishing appropriate key featuresdatum points purposerequirements for selected surface finish evaluation of product by weight formulation effects of toxic fumes of melting wax effects of casting shrinkage and finishing processes hazards and control measures including housekeeping use and application of personal protective equipment 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 produce a jewellery wax model 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 producing a jewellery wax model 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.
Materials	Materials may include those of different colours/hardness/properties
Tools	Electric and hand held tools, e.g. heat irons, wax guns, saws, carving tools, wax files, flaming torch
Surface finishes	Fine emery, Shellite

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