AutoCAD Hatching Command Lecture Notes

Instructor Introduction

• Name: Randy Dobson
• Location: Houston, Texas
• Topic: Hatching command in AutoCAD

Key Concepts

Importance of Hatching

• Different industries and companies use different hatching symbology.
• Companies typically have a set of standards for hatching.

Hatching Command Basics

• Hatching Command Location: Menu for hatching is dedicated when selected.
• Requirements: A closed object is needed for hatching.
  • Can be multiple objects; one object is preferable.
• Two methods to specify hatch location:
  1. Pick a Point: Recognizes internal objects (e.g., text).
  2. Select a Boundary: Ignores internal objects.

Differences in Methods

• Pick a Point:
  • Works dynamically with internal objects.
  • Recognizes and adjusts to internal object movements.
• Select a Boundary:
  • Ignores internal objects completely.
  • Does not adapt to internal changes.

Scale and Angle Adjustments

• Scale:
  • Adjust based on drawing size (e.g., 60, 80, 100).
  • Can be modified post-creation.
• Angle:
  • Default is zero.
  • Adjust only if necessary. Different patterns have their default zero.

Practical Example: Concrete Hatch

• Concrete Symbol: Represents sand and rock aggregate.
• Adjustability:
  • Hatching changes with text movement.
  • Grips can adjust the boundaries even if original lines are deleted.

Efficient Hatching Techniques

• Match Properties Tool: Use this to replicate hatching properties efficiently.
• Separate Hatching:
  • Hatch objects individually to allow for individual adjustments and deletions.
  • Avoid linking multiple objects into one hatch to save time on adjustments.

Layer Management

• Layer Usage: Create a specific layer for hatching (e.g., "hatch" layer, color-coded).
• Visibility Management: Layers can be frozen to hide hatching for particular plots.

Conclusion

• AutoCAD hatching is a versatile tool with various patterns and settings.
• Proper usage and management can save time and enhance drafting efficiency.
• For further questions, Randy Dobson offers email support to students and others interested.

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End of Lecture Summary on AutoCAD Hatching by Randy Dobson.