Classification of Engineering drawings as per Standards

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SUMMARY

The classification of engineering drawings is outlined in the ASME Y14 series, although the term "Level 1" is not explicitly defined within these standards. Instead, "Level 1" refers to a conceptual and developmental design phase, while subsequent levels indicate production stages, with Level 3 requiring precise specifications. The discussion highlights that while ASME Y14 does not categorize drawings by levels, similar classifications are found in MIL standards. Understanding these levels is crucial for effective engineering communication and documentation.

PREREQUISITES
  • Familiarity with ASME Y14 standards
  • Understanding of MIL standards for engineering drawings
  • Knowledge of engineering drawing types (part, subassembly, assembly)
  • Basic principles of geometric dimensioning and tolerancing (GD&T)
NEXT STEPS
  • Research the ASME Y14 series for detailed drawing standards
  • Study MIL standards related to engineering drawing classifications
  • Learn about geometric dimensioning and tolerancing (GD&T) applications
  • Explore the differences between part, subassembly, and assembly drawings
USEFUL FOR

Engineers, drafters, and quality assurance professionals involved in the creation and interpretation of engineering drawings will benefit from this discussion.

greenclover
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Hello,

What is Level 1 engineering drawing? What does it mean?

Is there any particular section dealing about classification of engineering drawings in ASME Y 14 series.

Please throw some light on this

Thanks
 
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Anyone, please share their knowledge
 
I can't say I ever remember anything called "Level 1" type of drawing in any of the ASME Y14 series. I'll have to take another look through to make sure.

Perhaps it is in reference to an assembly level of a drawing. In other words, the most basic level is a part drawing. The next higher level could be a subassembly level, the next higher level another subassembly. The highest level being the top level assembly drawing.
 
Thanks Tyroman and FredGarvin.

As FredGarvin pointed out, it is not part of ASMEY14, but was mentioned in MIL standard.
 
In a nutshell: Level 1 – Conceptual and Developmental Design, Level 2 – Production Prototype and Limited Production, Level 3 - Production.
In level 3 drawings, all of your i's must be dotted and t's crossed, with nothing left open to varying interpretations.
 

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