Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEM19012B Mapping and Delivery Guide
Produce jewellery wax model

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEM19012B - Produce jewellery wax model
Description This unit covers producing one-off wax models in simple to moderate carved forms and simple to moderate structural forms.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application This unit applies to the production of wax models for a range of jewellery products, simple to moderate carved forms, simple to moderate structural forms. Processes may include free-form carving moderate detail with some fine detail. This unit is not intended to include fine wire filigree work. Appropriate awareness of occupational health and safety issues and measures, including the use of protective equipment is applied, including control of melting wax, knowledge of effects of toxic fumes.For modelling with the use of computer aided equipment, Units MEM09009C (Create 2D drawings using computer aided design system) and Units MEM09010C (Create 3D models using computer aided design system) should be considered.Band: AUnit Weight: 4
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Path 1MEM18001C Use hand tools MEM18002B Use power tools/hand held operations MEM18003C Use tools for precision work
Competency Field Jewellery and horological
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Determine master requirements
  • Customer specifications are identified.
       
Element: Prepare materials for production of wax model
  • Appropriate waxes are selected.
  • Stock materials are cut to appropriate length.
  • Appropriate tools are selected and used.
       
Element: Produce wax models
  • Material use and production time are optimised.
  • Wax is sculpted to specifications.
       
Element: Finish wax models
  • Imperfections in final wax model are minimised.
  • Surface finishes are applied.
       
Element: Assess suitability of final wax product
  • Product is inspected for compliance with specifications.
  • Final product is modified as necessary.
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

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, 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

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

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, effort/time 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 requirements/specifications and minimise waste

tools for preparing and producing wax for specific wax types and constructions

importance of minimising material wastage and time taken during roughing/finishing

appropriate key features/datum points

purpose/requirements 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

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

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Customer specifications are identified. 
Appropriate waxes are selected. 
Stock materials are cut to appropriate length. 
Appropriate tools are selected and used. 
Material use and production time are optimised. 
Wax is sculpted to specifications. 
Imperfections in final wax model are minimised. 
Surface finishes are applied. 
Product is inspected for compliance with specifications. 
Final product is modified as necessary. 

Forms

Assessment Cover Sheet

MEM19012B - Produce jewellery wax model
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

MEM19012B - Produce jewellery wax model

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: