Creating Sectional Views. This week you will learn creating sectional views. The steps to follow are: Cutting Plane Types of sectional views

Transcription

1 This week you will learn creating sectional views. The steps to follow are: Cutting Plane Types of sectional views Hatching (full, half, detailed etc) Assembly Sections Creating Section Views in CADD 1

2 Sectional views are usually produced (a) (b) (c) (d) (e) (f) to clarify details of the object, to illustrate internal features clearly, to reduce the number of hidden-detail lines, to facilitate the dimensioning of internal features, to show the shape of the cross-section, to show clearly the relative positions of parts forming an assembly. 2

3 Cutting Plane Cutting plane lines typically lay in a view adjacent to the section view and represent the cutting path of the cross section 3

4 Cutting Plane Line 4

5 Full section Half section 5

6 Offset section Local section Aligned section Revolved section 6

7 Assembly Sections a) Views show how the parts fit together b) Individual components are identified by the use of numbers c) Adjacent components are hatched with a different properties (angle or scale) d) Standard components such as bolts, nuts are not hatched 7

8 Using the BHATCH (Boundary Hatch) Command Command: BHATCH 8

9 Boundary Hatch 2 9

10 Boundary Hatch 3 10

11 Boundary Hatch 4 11

12 Boundary Hatch 5 12

13 Boundary Hatch 6 13

14 Boundary Hatch 7 14

15 Using the HATCH Command Command: HATCH Enter a pattern name or [?/Solid/User defined]<ansi31> Scale for pattern <1.0000>: Angle for pattern <0>: Select hatch boundaries or press ENTER for direct hatch option, Select objects: <Select objects to hatch> Select objects: 15

16 HATCH 2 Command: HATCH Enter a pattern name or [?/Solid/User defined]<ansi31>s Select hatch boundaries or press ENTER for direct hatch option, Select objects: <Select objects to hatch> Select objects: 16

17 HATCH 3 Command: HATCH Enter a pattern name or [?/Solid/User defined]<ansi31> Scale for pattern <1.0000>: Angle for pattern <0>: Select hatch boundaries or press ENTER for direct hatch option, Select objects: <Select objects to hatch> Select objects: <Select objects to hatch> Select objects: 17

18 Cutting Plane Line Drawing a Leader : Command: _leader From point: _mid of To point: To point (Format/Annotation/Undo)<Annotation>: Annotation (or press ENTER for options): Tolerance/Copy/Block/None/<Mtext>: n 1st 2nd 18

19 Cutting Plane Line Typing Capital Letter 1st 2nd 19

20 Typing Capital Letter 20