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Evidence Guide: MEM04017B - Develop and manufacture gear, conveyor screw and propeller patterns

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM04017B - Develop and manufacture gear, conveyor screw and propeller patterns

What evidence can you provide to prove your understanding of each of the following citeria?

Determine job requirements

  1. Drawings, instructions and specifications are interpreted and understood.
  2. Appropriate material is selected to specifications.
  3. Moulding, cast techniques and foundry processes are applied in determining the type of pattern required.
Drawings, instructions and specifications are interpreted and understood.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Appropriate material is selected to specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Moulding, cast techniques and foundry processes are applied in determining the type of pattern required.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Lay out pattern

  1. Pattern parameters are calculated.
  2. Pattern is laid out showing tapers, machining allowances, core prints and method of construction etc. to specification.
  3. Jigs and fixtures are developed and manufactured to aid the manufacture of the pattern form as required.
Pattern parameters are calculated.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pattern is laid out showing tapers, machining allowances, core prints and method of construction etc. to specification.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Jigs and fixtures are developed and manufactured to aid the manufacture of the pattern form as required.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Manufacture pattern

  1. Materials are marked out and construction is developed to meet specifications.
  2. Pattern or pattern component parts are produced to size and shape and checked for compliance with specifications using acceptable wood pattern making techniques, procedures and utilising appropriate hand and hand held power tools.
  3. Pattern component parts are joined or fixed as required, according to specifications, using acceptable pattern making techniques and procedures.
  4. Pattern is correctly marked, colour-coded and/or tagged in compliance with specifications or standard operating procedures.
Materials are marked out and construction is developed to meet specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pattern or pattern component parts are produced to size and shape and checked for compliance with specifications using acceptable wood pattern making techniques, procedures and utilising appropriate hand and hand held power tools.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pattern component parts are joined or fixed as required, according to specifications, using acceptable pattern making techniques and procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pattern is correctly marked, colour-coded and/or tagged in compliance with specifications or standard operating procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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 develop and manufacture gear, conveyor screw and propeller patterns. 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 manufacturing gear, conveyor screw and propeller patterns 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

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

determining job requirements from written instructions, standard operating procedures, sketches, drawings and other applicable reference documents

planning and sequencing operations

checking and clarifying task-related information

selecting appropriate materials to suit the moulding/casting techniques and foundry process

laying out the pattern/core boxes

constructing patterns/core boxes

joining and fixing component parts

checking patterns

calculating contraction rates/pitch/proportions/profiles

undertaking relevant engineering calculations

Required knowledge

Look for evidence that confirms knowledge of:

timber, epoxy resin and composite product knowledge including features, characteristics and applications

moulding and casting techniques for cast gears, conveyor screws and marine propellers

tooling required for casting/moulding

methoding techniques

the use and application of jigs and fixtures

methods of construction

techniques, tools and equipment to measure, mark out&produce gear, conveyor screw&propeller patterns

mathematical calculations and formulae required to manufacture patterns/core boxes - contraction, taper, pitch, profiles, clearances, machining allowances

identification coding and numbering

pattern checking techniques

mouldability i.e. surface finish, face taper, convex or concave perspectives, undercuts, etc.

use and application of personal protective equipment

safe work practices and procedures

hazards and control measures associated with developing and manufacturing gear, conveyor screw and propeller patterns

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.

Material

Hardwood, softwood, epoxy resins, composites

Pattern parameters

Pitch circles, pressure angles, tooth form, left and right hand flight helix, pitch axial dimensions, angles, tapers, clearances, contraction allowances appropriate to developing various types of gear, conveyor and propeller forms

Calculated

The determination of contraction rates, pitch, proportions, profiles as well as general engineering calculations