Are These Right Angle Projections Accurate?

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SUMMARY

The forum discussion centers on the accuracy of right angle projections for various objects, specifically addressing potential errors in hidden lines. Users identified a missing horizontal dashed line in the lower drawing of the third link and noted that some hidden lines appeared too solid. The discussion also raised questions about which specific angle projection (first or third) was required for the task, indicating that clarity on projection types is essential for accurate representation.

PREREQUISITES
  • Understanding of technical drawing conventions
  • Familiarity with first and third angle projection techniques
  • Knowledge of hidden line representation in engineering drawings
  • Ability to analyze and critique visual representations
NEXT STEPS
  • Research the differences between first and third angle projection methods
  • Study the conventions for representing hidden lines in technical drawings
  • Learn how to identify and correct common errors in engineering drawings
  • Explore software tools for creating and verifying technical projections
USEFUL FOR

This discussion is beneficial for engineering students, technical illustrators, and professionals involved in creating or reviewing technical drawings, particularly those focused on projection accuracy.

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They look ok to me except for:

A possible missing hidden line (horizontal dashed line) on third link lower drawing.

Some of the hidden lines look a bit "solid". I had to zoom into check.

Were you told which angle projection they had to be (eg first or third)?
 
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CWatters said:
They look ok to me except for:

A possible missing hidden line (horizontal dashed line) on third link lower drawing.

Some of the hidden lines look a bit "solid". I had to zoom into check.

Were you told which angle projection they had to be (eg first or third)?
The missing line is at the second picture of the third link right? Could you tell me which projection (the upper right/ left/ the lower) might be wrong?
 
Yes the projection in the top right quarter of this image appears to be missing a hidden line although there is a faint construction line for it?

Projections.jpg
 

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