1. In this chapter, you will learn the following:
Chapter 3: Editing and Modifying Sketches
In this chapter, you will learn the following:
Trimming Sketch Entities
Extending Sketch Entities
Offsetting Sketch Entities
Mirroring Sketch Entities
Patterning Sketch Entities
Creating a Sketch Fillet
Creating a Sketch Chamfer
Moving a Sketch Entity
Creating a Copy of Sketch Entities
Rotating an Entity
Scaling Sketch Entities
Stretching an Entity

2. Trimming Sketch Entities
Chapter 3: Editing and Modifying Sketches
Trimming Sketch Entities
You can trim the unwanted sketch entities by using the Trim Entities tool in the Sketch CommandManager.
Click on the Trim Entities tool in the Sketch CommandManager. The Trim PropertyManager appears.

3. Chapter 3: Editing and Modifying Sketches
Power trim
The Power trim button of the Options rollout is used to trim sketch entities by holding and dragging the cursor across the entities to be trimmed.

4. Chapter 3: Editing and Modifying Sketches
In addition to trimming sketch entities by using the Power trim button, you can also extend sketch entities up to their nearest intersection.
TIP:
You can also extend a sketch entity up to a particular distance by using the Power trim button. To extend an entity up to a distance, click on the entity to be extended in the drawing area and then move the cursor in the required direction.

5. Chapter 3: Editing and Modifying Sketches
Corner
The Corner button is used to create a corner between two selected entities by trimming or extending them.

6. Chapter 3: Editing and Modifying Sketches
Trim away inside
The Trim away inside button is used to trim entities that lie inside a defined boundary.

7. Chapter 3: Editing and Modifying Sketches
Trim away outside
The Trim away outside button of the Options rollout is used to trim the entities that lie outside a defined boundary.

8. Chapter 3: Editing and Modifying Sketches
Trim to closest
The Trim to closest button is used to trim sketch entities from their nearest intersection by clicking the left mouse button.

9. Extending Sketch Entities
Chapter 3: Editing and Modifying Sketches
Extending Sketch Entities
You can extend sketch entities up to their nearest intersection by using the Extend Entities tool.

10. Offsetting Sketch Entities
Chapter 3: Editing and Modifying Sketches
Offsetting Sketch Entities
You can offset sketch entities or edges of an existing feature at a specified offset distance by using the Offset Entities tool. Click on the Offset Entities tool in the Sketch CommandManager. The Offset Entities PropertyManager appears.
Offset Distance
The Offset Distance field of the Parameters rollout is used to specify the offset distance.

11. Chapter 3: Editing and Modifying Sketches
Add dimensions
The Add dimensions check box is selected to apply the specified offset distance value (dimension) in the resultant offset sketch.

12. Chapter 3: Editing and Modifying Sketches
Reverse
Select chain
If the Select chain check box is selected, on selecting a sketch entity in the drawing area, all the contiguous entities of the selected entity will be selected, automatically.
Bi-directional
The Bi-directional check box is used to offset selected entity/entities bi-directionally (both sides of the parent entity/entities).

13. Chapter 3: Editing and Modifying Sketches
Cap ends
The Cap ends check box is used to cap the open ends of offset entities with lines or arcs .

14. Chapter 3: Editing and Modifying Sketches
Construction geometry
On selecting the Base geometry check box in the Construction geometry area, the original/base sketch entities are converted into construction entities .
If you select the Offset geometry check box, then the offset entities are converted to construction entities.

15. Mirroring Sketch Entities
Chapter 3: Editing and Modifying Sketches
Mirroring Sketch Entities
In SOLIDWORKS, you can mirror sketch entities about a mirroring line and create their mirror images by using the Mirror Entities and Dynamic Mirror tools .
Mirroring Entities by using the Mirror Entities Tool

16. Chapter 3: Editing and Modifying Sketches
Mirroring Entities by using the Dynamic Mirror Tool
The Dynamic Mirror tool is used to mirror entities about a mirroring line similar to mirroring entities using the Mirror Entities tool with the only difference that this tool dynamically mirrors entities while drawing them.

17. Patterning Sketch Entities
Chapter 3: Editing and Modifying Sketches
Patterning Sketch Entities
In SOLIDWORKS, you can create linear and circular patterns of sketch entities by using the Linear Sketch Pattern and Circular Sketch Pattern tools, respectively .
Linear Sketch Pattern
Creating multiple instances of a sketch entity in a linear manner, along the X and Y axes, using the Linear Sketch Pattern tool is known as a linear sketch pattern.
To create a linear sketch pattern, click on the Linear Sketch Pattern tool in the Sketch CommandManager. The Linear Pattern PropertyManager appears .

18. Chapter 3: Editing and Modifying Sketches

19. Chapter 3: Editing and Modifying Sketches
Instances to Skip
The Instances to Skip rollout of the PropertyManager is used to skip or remove the unwanted instances of a pattern.
NOTE:
To recall the skipped instances of the pattern, click on the orange dots of the skipped instances that appear in the preview of the pattern.

20. Chapter 3: Editing and Modifying Sketches
Circular Sketch Pattern
Creating multiple instances of a sketch entity in a circular manner about a center point by using the Circular Sketch Pattern tool is known as a circular sketch pattern.

21. Chapter 3: Editing and Modifying Sketches
Once the Circular Pattern PropertyManager has been invoked, select the sketch entity/entities to be patterned in the drawing area. The preview of the circular pattern with default parameters appears .
Center Point
Center X
Center Y
Angle spacing
Equal spacing
Dimension radius
Dimension angular spacing
Number of Instances
Display instance count
Radius
Arc Angle

22. Chapter 3: Editing and Modifying Sketches
Instances to Skip
The Instances to Skip rollout of the PropertyManager is used to skip pattern instances of a circular pattern.

23. Creating a Sketch Fillet
Chapter 3: Editing and Modifying Sketches
Creating a Sketch Fillet
A sketch fillet is used to remove the corner at the intersection of two sketch entities by creating a tangent arc of constant radii.

24. Chapter 3: Editing and Modifying Sketches
To create sketch fillets, click on the Sketch Fillet tool in the Sketch CommandManager. The Sketch Fillet PropertyManager appears.

25. Chapter 3: Editing and Modifying Sketches

26. Creating a Sketch Chamfer
Chapter 3: Editing and Modifying Sketches
Creating a Sketch Chamfer
A chamfer is a bevel edge that is non perpendicular to its adjacent sketch entities. You can create a chamfer to the adjacent entities of a sketch by using the Sketch Chamfer tool.

27. Chapter 3: Editing and Modifying Sketches
To create a sketch chamfer, click on the Sketch Chamfer tool. The Sketch Chamfer PropertyManager appears.

28. Chapter 3: Editing and Modifying Sketches

29. Moving a Sketch Entity Chapter 3: Editing and Modifying Sketches
You can move a sketch entity from one position to another in the drawing area by using the Move Entities tool.

30. Creating a Copy of Sketch Entities
Chapter 3: Editing and Modifying Sketches
Creating a Copy of Sketch Entities
You can create a copy of a set of sketch entities by using the Copy Entities tool. To copy sketch entities, click on the Copy Entities tool. The Copy PropertyManager appears.

31. Rotating an Entity Chapter 3: Editing and Modifying Sketches
You can rotate a sketch entity or entities at an angle by using the Rotate Entities tool.

32. Scaling Sketch Entities
Chapter 3: Editing and Modifying Sketches
Scaling Sketch Entities
You can increase or decrease the scale of sketch entities by using the Scale Entities tool.

33. Stretching an Entity Chapter 3: Editing and Modifying Sketches
You can stretch entities of a sketch by using the Stretch Entities tool.

34. Tutorial 1 Chapter 3: Editing and Modifying Sketches
Draw the sketch as shown in the figure. The dimensions and the model shown in this figure are for your reference only. You will learn about applying dimensions and creating a model in later chapters.
To create this tutorial, follow the steps given in the textbook.

35. Tutorial 2 Chapter 3: Editing and Modifying Sketches
Draw the sketch as shown in the figure. The dimensions and the model shown in this figure are for your reference only. You will learn about applying dimensions and creating a model in later chapters.
To create this tutorial, follow the steps given in the textbook.

36. Tutorial 3 Chapter 3: Editing and Modifying Sketches
Draw the sketch of the model as shown in the figure given below. The dimensions and model shown in the figure are for your reference only.
To create this tutorial, follow the steps given in the textbook.

37. Hands-on Test Drive 1 Chapter 3: Editing and Modifying Sketches
Draw the sketch shown in the Figure given below. The dimensions and model shown in the figure are for your reference.

38. Summary Chapter 3: Editing and Modifying Sketches
So far in this chapter, you have learned about editing and modifying sketch entities by using various editing tools such as Trim Entities, Extend Entities, Offset Entities, Mirror Entities, and Linear Sketch Pattern. The pattern tools discussed in this chapter allow you to create the linear and circular patterns. Also, the mirror tools allow you to create the mirror image of the selected entities about a mirroring line. You can also dynamically mirror sketch entities while drawing them using the Dynamic Mirror tool. Moreover, you have learned how to move sketch entities from one position to the other, copy sketch entities, rotate sketch entities, scale, and stretch sketch entities by using the respective tools.

39. Questions Chapter 3: Editing and Modifying Sketches
The ________ tool is used to offset sketch entities at a specified offset distance.
You can rotate sketch entities at an angle by using the ________ tool.
You can stretch the sketch entities of a sketch by using the ________ tool.
To rotate sketch entities anti-clockwise, you need to define the ______ angle value.
While offsetting sketch entities, if you select the ______ check box, all the contiguous entities of the selected entity get selected.
The number of pattern instances specified in the Number of Instances field include the parent or original instance selected to pattern (True/False).

40. Chapter 3: Editing and Modifying Sketches
You cannot recall the skipped pattern instances (True/False).
In addition to trimming sketch entities, you can extend sketch entities by using the Trim Entities tool (True/False).