Modification History
Release 1 - New unit of competency
Unit Descriptor
This unit of competency covers producing assembly, sectioned drawings and specialised dimensioning and auxiliary views to Australian Standard (AS) 1100.101–1992 Technical drawing – General principles, or equivalent. It includes determining and applying tolerances and dimensions, as required, to complete engineering detail drawing.
Application of the Unit
Skills covered by this unit are applied individually or in a team environment where comprehensive responsibility for the production of the drawing is exercised, and critical dimensions and associated tolerances are determined, where required.
This may include tolerancing and dimensioning for location, form, orientation, profile and runout and includes geometric tolerancing and use of modifiers. Drawings and all tolerances and dimensions are to AS 1100.101–1992 Technical drawing – General principles.
Drawings will usually be carried out with the use of computer-aided design (CAD) systems but may also be done manually. If CAD systems are to be used, the unit MEM30031A Operate computer-aided design (CAD) system to produce basic drawing elements, should also be selected.
Licensing/Regulatory Information
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.
Pre-Requisites
MEM09002B |
Interpret technical drawing |
MEM09204A |
Prepare basic engineering detail drawings |
MEM30012A |
Apply mathematical techniques in a manufacturing, engineering or related environment |
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
1 |
Prepare for drawing work |
1.1 |
Check purpose, scope and presentation requirements for drawing task |
1.2 |
Determine the information requirements for the finished part or item and its interaction with the next level of assembly or process |
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1.3 |
Undertake requests for further information (RFI) to designer where information cannot be obtained or calculated |
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1.4 |
Identify relevant standards and terminology, symbols and notation required to comply with standard and design |
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1.5 |
Prepare equipment and set up software for drawing work |
2 |
Identify and apply dimensions and tolerances for drawing |
2.1 |
Determine methods of general dimensioning and tolerancing, classes of fit and forms of geometric shapes from engineer, sketches or specifications |
2.2 |
Select dimensioning and tolerancing scheme and symbols consistent with standards and design requirements |
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2.3 |
Identify and confirm datum points |
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2.4 |
Apply the principles of general dimensioning to engineering drawing |
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2.5 |
Apply the principles of general tolerancing engineering drawing |
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2.6 |
Check that each dimension and tolerance symbol can be clearly interpreted for application |
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2.7 |
If required, re-dimension toleranced drawing with new datum positions |
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2.8 |
Extract information from dimensioned drawing |
3 |
Prepare assembly, layout and detail drawings |
3.1 |
Produce sectioned third angle orthogonal assembly drawings |
3.2 |
Project a primary auxiliary view |
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3.3 |
Produce finished assembly drawings complete with material/part/cutting lists, cross-referencing and any required dimensions (overall and centre-to-centre) |
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3.4 |
Produce all drawings to AS 1100.101–1992 Technical drawing – General principles, or equivalent and enterprise presentation standards |
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3.5 |
Check that all required tolerances and dimensions are on the drawing |
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3.6 |
Apply workplace occupational health and safety (OHS) and environmental procedures |
4 |
Select material, components and/or assemblies |
4.1 |
Interpret specifications to determine material requirements |
4.2 |
Select components, material and/or assemblies from data sheets or manufacturer catalogues to meet specifications |
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4.3 |
Produce bill of materials |
5 |
Complete drawing work |
5.1 |
Verify drawing compliance with specifications |
5.2 |
Check drawings to ensure that assembly/fabrication is possible |
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5.3 |
Document and save drawings according to enterprise filing system |
Required Skills and Knowledge
Required skills |
Required skills include:
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Required knowledge |
Required knowledge includes:
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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. |
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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:
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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. |
Range Statement
Equivalent standard |
Equivalent standard may include:
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Dimensioning |
Dimensioning may include:
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Tolerancing |
Tolerancing may include:
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Symbols used for tolerancing |
Symbols used for tolerancing may include, but are limited to:
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Symbols used for dimensioning |
Symbols used for dimensioning may include, but are not limited to:
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Condition |
Condition may include:
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Geometry tolerancing |
Geometry tolerancing may include:
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Assembly drawing types |
Assembly drawing types may include:
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Information from dimensioned drawing |
Information from dimensioned drawing may include:
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Drawings |
Drawings must include:
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Auxiliary projection |
Auxiliary projection (primary views only) may include:
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Unit Sector(s)
Drawing, drafting and design
Custom Content Section
Not applicable.