Unit 3:
Engineering Curves and

Development of Solid Surfaces

Introduction to Conic Section

Videos by S.S.Khasbage

Rectangle Method

Focus Directrix Method

Helix of Cylinder

Cycloid

Spiral

Ellipse

Ellipse by directrix focus method

Ellipse Construction by Oblong Method

An ellipse by Oblong method or Rectangle Method

Parabola

Parabola by Directrix Focus Method

Parabola by Rectangle Method

Hyperbola

Hyperbola- Directrix Focus Method

Hyperbola -Rectangle Method

Cylcoid

Introduction to Cycloid

Circular Cycloid one revolution

Involute

Involute_String Length is equal to Circumference of circle_Problem1

Involute_String Length is greater than Circumference of circle_Problem2

Involute_String Length is less than Circumference of circle_Problem3

Involute of a Square: All Cases Demonstrated

Involute of a Pentagon: All Cases Demonstrated

Involute of a SQUARE with Normal & Tangent

Helix

Helix on cylinder

Archemedean Spiral

Archemedean Spiral

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