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Evidence Guide: MEM09214A - Perform advanced engineering detail drafting

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

 

MEM09214A - Perform advanced engineering detail drafting

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

Prepare for drawing work

  1. Check purpose, scope and presentation requirements for drawing task
  2. Determine the information requirements for the finished part or item and its interaction with the next level of assembly or process
  3. Undertake requests for further information (RFI) to designer where information cannot be obtained or calculated
  4. Identify relevant standards and terminology, symbols and notation required to comply with standard and design
  5. Prepare equipment and set up software for drawing work
Check purpose, scope and presentation requirements for drawing task

Completed
Date:

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Determine the information requirements for the finished part or item and its interaction with the next level of assembly or process

Completed
Date:

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Undertake requests for further information (RFI) to designer where information cannot be obtained or calculated

Completed
Date:

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Identify relevant standards and terminology, symbols and notation required to comply with standard and design

Completed
Date:

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Prepare equipment and set up software for drawing work

Completed
Date:

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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 perform advanced engineering detail drafting techniques to produce assembly, sectioned drawings and specialised dimensioning and auxiliary views to AS 1100.101–1992 Technical drawing – General principles, or equivalent.

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.

Specifically the candidate must be able to:

work within typical site/teamwork structures and methods

apply worksite communication procedures

comply with organisational policies and procedures, including quality requirements

participate in work meetings

comply with quality requirements

use industry terminology

apply appropriate safety procedures

perform required calculations to determine tolerances and fits required to meet design requirements

produce drawings to AS 1100.101–1992 Technical drawing – General principles, with all components identified.

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 performing advanced engineering detail drafting 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.

Required Skills and Knowledge

Required skills

Required skills include:

obtaining all relevant work instructions and requirements

producing all drawings in accordance with AS 1100.101–1992 Technical drawing – General principles, or equivalent

obtaining all relevant data sheets and catalogues

calculating required limits, fits, datum references and geometric tolerances where they are not supplied from designer or reference material

checking drawings for conformance to specification

checking drawings to ensure that assembly/fabrication is possible

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

planning and sequencing operations

checking and clarifying task-related information

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

reading and selecting correct toleranced dimensions to meet the required class of limit or fit as selected by the engineer or other designer from the specifications

applying symbols for:

dimensions

dimension origin

reference values

applying tolerance symbols for:

datum identification

form

location

profile

runout

modifiers

inserting or calculating geometric tolerances with regard to the roundness, straightness, flatness, concentricity, and so on, of an engineering component

applying schedules and legends to the drawing

converting between unilateral, bilateral and limit of size or direct tolerances

applying tolerances to meet the individual fit classifications between a shaft and hole (clearance, interference and transition)

determining part quantities and material lengths for inclusion in the parts/material/cutting list

Required knowledge

Required knowledge includes:

specifications and/or requirements of the component, assembly or layout to be drawn

functional operation of the component/assembly to be drawn

surfaces which are to be in contact or separated

appropriate type of fit for contacting surfaces

reasons for selecting the chosen type of fit

calculation methods for determining limits, fits, datum references and geometric tolerances

effect of surface finish on the performance/operation of surfaces

all appropriate lineal, diametric and geometric tolerances

procedures for determining tolerances

requirements of AS 1100.101–1992 Technical drawing – General principles, or equivalent for drawings to be produced

specifications of the components, materials and/or assemblies

appropriate components and materials from supplier/manufacturer catalogues

reasons for selecting the chosen components and/or materials

procedures for checking and approving drawings

reasons for checking the drawings to ensure that manufacturing/assembly is possible, efficient and cost-effective

drawing specifications

methods of manufacture/assembly/fabrication from drawings

unnecessary or inappropriate tolerances

hazards and control measures associated with performing advanced engineering detail drafting, including housekeeping

safe work practices and procedures

engineering features, terminology and abbreviations

hatching techniques such as large sections, small sections, thin sections and designation of materials

sectioning systems, such as revolved section, removed section, local or part section, offset section, aligned section and interposed section

types of bearings

sectioning conventions, such as screw threads, shafts and rods, webs and thin sections

awareness of copyright and intellectual property issues and legislation in relation to drawing

role of datum points in dimensioning and tolerancing a detail engineering drawing

RFI process for project or enterprise

symbols used for dimensioning

symbols used for tolerancing

Range Statement

Equivalent standard

Equivalent standard may include:

AS 1654.1–1995 ISO system of limits and fits – Bases of tolerances, deviations and fits

Dimensioning

Dimensioning may include:

symbols

lines

numerical value

linear

angular

diameter

radius

not to scale (NTS)

auxiliary

reference

common feature

tabular presentation

squares

holes

screw heads

tapers/slope

profiles

notes

Tolerancing

Tolerancing may include:

basic dimension

bilateral

unilateral

zone

datum

tolerance grade

datum feature

Symbols used for tolerancing

Symbols used for tolerancing may include, but are limited to:

datum identification

form

location

profile

runout

modifiers

Symbols used for dimensioning

Symbols used for dimensioning may include, but are not limited to:

diameter

square

counterbore

countersink

depth

dimension origin

reference value

slope

taper

radius

spherical radius

Condition

Condition may include:

fit

limits of size

fundamental deviation

allowance

maximum material condition

least material condition

Geometry tolerancing

Geometry tolerancing may include:

virtual condition and size

geometric reference frame

principle of independency

tolerance (form, profile, orientation and position)

characteristics, including:

straightness

flatness

circularity

cylindricity

profile

squareness

parallelism

angularity

runout

tolerance indication method

projected tolerances

statistical value tolerances

Assembly drawing types

Assembly drawing types may include:

general assembly

detailed assembly

layout drawings

installation drawings

erection diagrams

shop and field assemblies

pictorial exploded drawings

Information from dimensioned drawing

Information from dimensioned drawing may include:

limits of size

fundamental deviation

allowance

tolerance, including:

maximum material condition

least material condition

fit

Drawings

Drawings must include:

accurate representation, including any necessary hidden detail of the specific assembly

border, title block and projection symbols

accurate line work

appropriately positioned views

hatching to AS 1100.101–1992 Technical drawing – General principles specifications (sectioned third angle orthogonal assembly drawings)

correct use of terminology and abbreviations

Auxiliary projection

Auxiliary projection (primary views only) may include:

purpose for auxiliary projection

planes of projection

projection involving circular components

border, title block and projection symbols