Pattern Development

It is generally used for polyhedron, single curved surfaces, and warped surfaces

• Triangulation Method
• Ruled Surface

• Plane

• Radial Line Method

It is one that may be generated by sweeping a straight line, called the Generatrix, along a path, which ma be straight or curved

• Plane

• Double-Curved Surface

• Ruled Surface

• Single-Curved Surface

It is generated by a curved line and has no straight-line elements. Common examples are the sphere, torus, ellipsoid, and hyperboloid

• Single-Curved Surface

• Plane

• Double-Curved Surface

• Solids

It is a ruled surface that is generated by a line, one point of which moves along a straight path while the generatrix remains parallel to its original position

• Plane

• Single-Curved Surface

• Radial Line Method

• Solids

It is a developable ruled surface; that is, it can be unrolled to coincide with a plane. Example are the cylinder and the cone

• Double-Curved Surface

• Single-Curved Surface

• Plane

• Ruled Surface

It is a geometric solid that one whose top has been cut off at any angle and at any distance above its base

• Truncated

• Frustums

• Trunkated

• Frostoms

It is cones and pyramids that are truncated parallel to their bases

• Frustums

• Truncaated

• Frustoms

• Trunckated

It is employed for pyramids and single curve surfaces like cones in which the apex is taken as center and the edge as radius for its development

• Solids

• Parallel Line Method

• Radial Line Method

• Triangulation Method

It is used for developing prisms and single curve surfaces like cylinders/prisms in which all the edges of the lateral surface are parallel to each other

• Radial Line Method

• Triangulation Method

• Solid

• Parallel Line Mehod

It is very useful in sheet metal work, construction of storage vessels, boilers, and chimneys

• Importance of Development

• Principles of Development

• Bend Development

• Aguy Development