Lines and Symbols & Views and Projections

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Across
  1. 2. A drawing with part of the outside removed to show the interior.
  2. 4. A theoretical exact point, axis, or plane used as a reference.
  3. 10. A thin line with an arrow pointing to a specific feature for a note.
  4. 12. Shows one half of the view in section and the other half as an exterior view.
  5. 13. Long-short-short-long lines used to show alternate positions of a part.
  6. 16. A method of representing 3D objects in two dimensions.
  7. 17. A view that mimics how the human eye sees (vanishing points).
  8. 19. View: An enlarged view of a small part of a drawing for clarity.
  9. 21. An extra view used to show the true shape of an inclined surface.
  10. 22. Dashed lines representing edges or surfaces not visible from the current view.
  11. 25. Shows the components of an assembly separated but in their relative positions.
  12. 26. Alternating long and short dashes used to show the axis of symmetry.
  13. 27. Lines extending from the object to define the boundary of a dimension.
  14. 28. Parallel thin lines (hatching) indicating where a surface has been cut.
  15. 29. Indicates a sewing or stitching process.
Down
  1. 1. A sectional view where the cutting plane passes entirely through the object.
  2. 3. Commonly used in Europe (object is between observer and plane).
  3. 5. Commonly used in the US (plane is between observer and object).
  4. 6. Indicates that a part is identical on both sides of an axis.
  5. 7. A view of a vertical side (front, rear, left, or right).
  6. 8. A "top-down" bird's-eye view.
  7. 9. A section where the cutting plane is "stepped" to include various features.
  8. 11. A view showing the internal structure as if the object were cut open.
  9. 14. Indicates a surface requirement or specific zone.
  10. 15. Thick, solid lines representing edges that can be seen.
  11. 18. A 3D view where one face is parallel to the plane of projection.
  12. 20. Used to shorten a view of a long, uniform part.
  13. 21. The tip at the end of dimension or leader lines.
  14. 23. Lines ending in arrows that show the extent of a measurement.
  15. 24. A 3D representation where axes are 120° apart; no perspective foreshortening.