Methods

Applications

Exercises

Concept of Intersection

Types of Intersection

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“The meeting surface of two objects create an intersection line or curve.”

EXAMPLE:-1. Intersection between adjoining cone and

cylinder. (Figure 1)2. Two intersecting cylinders. (Figure 2)

Therefore, two adjoining objects create an intersection line.

Intersection Line

Figure 1

Figure 2

Between Two Lines

Between Line and Plane

Between Two Planes

Intersection Line

AC

BD

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Penetration pointPlane

Line

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Two Flat Surfaces

Flat Surface & Curve Surface

Two Curve Surfaces

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Intersection line

Pyramid

Prism

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Cylinder

Pyramid

Intersection line

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Cylinder 1

Cylinder 2

Intersection line

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Edge View Method

Cutting Plane Method

2

1

34

5

6

7

8

910

11

12

Divide the cone base into 12 equal parts.

Top View

Front View

Step 1

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2

1

34

5

6

7

8

910

11

12

Project points 2,3,4,5 and 6 to the front view.

Mark the points of intersection.

3 256

Step 2

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2

1

34

5

6

7

8

910

11

12

3 256

Join the intersection points using a French curve.

Step 3

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Top View

Front View

1234

Draw a circles 1,2,3, and 4.

Project the circle points 1,2,3, and 4 to front view to determine the cutting planes of A,B,C and D.

ABCD

Step 1

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1’ 2’3’

Project the cutting points 1’,2’, and 3’ to the front view.

Mark the intersection points at A, B, C and D.A

BCD

Step 2

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1’ 2’3’

ABCD

Join the intersection points using a French curve.

Step 3

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Between Two Prisms

Between Two Cylinders

Between Cone & Cylinder

Top view

Front view Side viewBACK TO MENU

Top view

Front view Side viewBACK TO MENU

Top view

Front view Side viewBACK TO MENU

Top view

Front view Side viewBACK TO MENU

Top view

Front view Side viewBACK TO MENU

Top view

Front view Side view BACK TO MENU

Top view

Front view Side view BACK TO MENU

Question 1

Question 2

Which of the following is NOT a type of intersection?

A. Intersection between two planesB. Intersection between two linesC. Intersection between two solids

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Which of the following is NOT a method in intersection drawing?

A. Edge view methodB. Intersect plane view methodC. Cutting plane method

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