- Understanding Solid Objects
- Understanding Sketching Techniques
- 3.1 Technique of Lines
- 3.2 Sketching Straight Lines
- 3.3 Sketching Circles, Arcs, and Ellipses
- 3.4 Maintaining Proportions
- 3.5 One-View Drawings
- 3.6 Pictorial Sketching
- 3.7 Projection Methods
- 3.8 Axonometric Projection
- 3.9 Isometric Projection
- 3.10 Isometric Drawings
- 3.11 Making an Isometric Drawing
- 3.12 Offset Location Measurements
- 3.13 Hidden Lines and Centerlines
- 3.14 Angles in Isometric
- 3.15 Irregular Objects
- 3.16 Curves in Isometric
- 3.17 True Ellipses in Isometric
- 3.18 Orienting Ellipses in Isometric Drawings
- 3.19 Drawing Isometric Cylinders
- 3.20 Screw Threads in Isometric
- 3.21 Arcs in Isometric
- 3.22 spheres in Isometric
- 3.23 Oblique Sketches
- 3.24 Length of Receding Lines
- 3.25 Choice of Position in Oblique Drawings
- 3.26 Ellipses for Oblique Drawings
- 3.27 Angles in Oblique Projection
- 3.28 Sketching Assemblies
- 3.29 Sketching Perspectives
- 3.30 Curves and Circles in Perspective
- 3.31 Shading
- 3.32 Computer Graphics
- 3.33 Drawing on Drawing
- Key Words
- Chapter Summary
- Worksheets
- Review Questions
- Sketching Exercises
Sketching Exercises
Exercise 3.1 Sketch the objects shown using isometric, oblique, and one- or two-point perspective.
Exercise 3.2 Quick Sketch.
Practice the sketching skills and techniques you have learned for construction lines and ellipses. Set a timer for 10 minutes and make quick sketches of these nine different containers.
Select one container and create isometric, oblique, and perspective drawings.
Design a new piece of drinkware, using your sketching skills.
Select one container. Draw an enclosing box and shade in the negative space so that the contour of the container remains white.
![f0118-01.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-01.jpg)
(a) (Copyright Vitaly Korovin/Shutterstock.)
![f0118-02.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-02.jpg)
(b) (Copyright Odua Images/Shutterstock.)
![f0118-03.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-03.jpg)
(c) (Copyright Olga Popova/Shutterstock.)
![f0118-04.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-04.jpg)
(d) (Copyright tanuha2001/Shutterstock.)
![f0118-05.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-05.jpg)
(e) (Copyright Africa Studio/Shutterstock.)
![f0118-06.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-06.jpg)
(f) (Copyright Everything/Shutterstock.)
![f0118-07.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-07.jpg)
(g) (Copyright S-Photo/Shutterstock.)
![f0118-08.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-08.jpg)
(h) (Copyright loskutnikov/Shutterstock.)
![f0118-09.jpg](/content/images/chap3_9780134848716/elementLinks/f0118-09.jpg)
(i) (Copyright PERLA BERANT WILDER/Shutterstock.)
Exercise 3.3 Quick Sketch. Practice the sketching skills and techniques you have learned for construction lines and ellipses. Set a timer for 10 minutes and make quick sketches of these six different chairs.
![f0119-01.jpg](/content/images/chap3_9780134848716/elementLinks/f0119-01.jpg)
(a) (Copyright violetblue/Shutterstock.)
![f0119-02.jpg](/content/images/chap3_9780134848716/elementLinks/f0119-02.jpg)
(b) (Copyright Yeamake/Shutterstock.)
![f0119-03.jpg](/content/images/chap3_9780134848716/elementLinks/f0119-03.jpg)
(c) (Copyright Atiketta Sangasaeng/Shutterstock.)
![f0119-04.jpg](/content/images/chap3_9780134848716/elementLinks/f0119-04.jpg)
(d) (Copyright Ljupco Smokovski/Shutterstock.)
![f0119-05.jpg](/content/images/chap3_9780134848716/elementLinks/f0119-05.jpg)
(e) (Copyright Aleksandr Kurganov/Shutterstock.)
![f0119-06.jpg](/content/images/chap3_9780134848716/elementLinks/f0119-06.jpg)
(f) (Copyright Photobac/Shutterstock.)
Exercise 3.4 Quick Sketch. Practice the sketching skills and techniques you have learned for construction lines and ellipses. Set a timer for 10 minutes and make quick sketches of these tools.
(a) (Copyright WilleeCole Photography/Shutterstock.)
(b) (Copyright aodaodaodaod/Shutterstock.)
(c) (Copyright Planner/Shutterstock.)
(d) (Copyright Seregam/Shutterstock.)
(e) (Copyright Ingvar Bjork/Shutterstock.)
(f) (Copyright Yanas/Shutterstock.)
Exercise 3.5 Sketching. Practice the sketching skills and techniques you have learned for construction lines and ellipses. Set a timer for 10 minutes and make quick sketches of these items.
(a) (Copyright Mile Atanasov/Shutterstock.)
(b) (Copyright Mile Atanasov/Shutterstock.)
![f0121-03.jpg](/content/images/chap3_9780134848716/elementLinks/f0121-03.jpg)
(c) (Copyright Olga Kovalenko/Shutterstock.)
![f0121-04.jpg](/content/images/chap3_9780134848716/elementLinks/f0121-04.jpg)
(d) (Copyright Berents/Shutterstock.)
(e) (Copyright Jiggo_thekop/Shutterstock.)
![f0122-01.jpg](/content/images/chap3_9780134848716/elementLinks/f0122-01.jpg)
Exercise 3.6 Parking Meter. Create an oblique pictorial sketch of the parking meter shown here. Use construction lines to keep the features in proportion.
![f0122-02.jpg](/content/images/chap3_9780134848716/elementLinks/f0122-02.jpg)
Exercise 3.7 Free-Body-Diagram Sketches. Sketch the free body diagrams as shown.
Exercise 3.8 Rocker Arm. Create a freehand sketch. Use the dimensions to help in estimating proportions. Leave the dimensions off your sketch unless directed otherwise by your instructor.
Exercise 3.9 Special Cam. Create a freehand sketch. Use the dimensions to help in estimating proportions. Leave the dimensions off your sketch unless directed otherwise by your instructor.
Exercise 3.10 Boiler Stay. Create a freehand sketch. Use the dimensions to help in estimating proportions. Leave the dimensions off your sketch unless directed otherwise by your instructor.
Exercise 3.11 Outside Caliper. Create a freehand sketch. Use the dimensions to help in estimating proportions. Leave the dimensions off your sketch unless directed otherwise by your instructor.
Exercise 3.12 Gear Arm. Create a freehand sketch. Use the dimensions to help in estimating proportions. Leave the dimensions off your sketch unless directed otherwise by your instructor.
Exercise 3.13 Special S-Wrench. Create a freehand sketch. Use the dimensions to help in estimating proportions. Leave the dimensions off your sketch unless directed otherwise by your instructor.