1. ME 150 Engineering Drawing 1 Lab 3: 2D Sketch (2) 1 Umm Al-Qura University College of Engineering & Islamic Architecture Mechanical Engineering Department

2. Lab Objectives Patterns – Mirror – Circular – Rectangular Exercises 2 Umm Al-Qura University College of Engineering & Islamic Architecture Mechanical Engineering Department

3. Pattern Patterns are tools to efficiently draw repetitive shapes by duplicating one feature. 3 Umm Al-Qura University College of Engineering & Islamic Architecture Mechanical Engineering Department

4. Mirror Creates a mirrored copy of a sketch across an axis 4 Umm Al-Qura University College of Engineering & Islamic Architecture Mechanical Engineering Department

5. Circular Pattern 5 Umm Al-Qura University College of Engineering & Islamic Architecture Mechanical Engineering Department Duplicate selected sketch geometry and arranges it in an arc or circular pattern

6. Rectangular Pattern Duplicate selected sketch geometry and arranges it in rows and columns 6 Umm Al-Qura University College of Engineering & Islamic Architecture Mechanical Engineering Department

7. Exercises & Homework Exercises: – Page 2 (bottom left sketch) – Page 3 (2b) right sketch Homework – Page 4 (3b) left sketch 7 Umm Al-Qura University College of Engineering & Islamic Architecture Mechanical Engineering Department