Radial Line Pattern Development

# 23 Cone on a Pitch/Miter

- Draw an
**elevation view**, including the**apex point**. **Profile**the base of the elevation view and divide it into six equal parts.- Label the profile from 1 to 7 and project the divisions vertically into the base of the cone.
- Project the
**element lines**from the base to the apex of the cone. - Draw in the
**miter line**.

- Where the element lines cross the miter line, project them horizontally to the outside edge. This now creates seven different slant heights.

- Locate a radius point where you want to develop the pattern.
- With your compass, take the large
**slant height**and swing an arc. - Set your compass to all of the remaining slant heights and swing them from the radius point.
- Establish a starting point for the pattern and draw a line back to the radius point.
- Set your compass to a step-off. From your starting point, swing it 12 times along the
**stretch-out arc**and label each point to match the elevation view.**Start your numbering where you want the seam, commonly put on the short side of the cone.** - Connect the all of the points back to the radius point.
- Following your numbering, circle each intersection point.
**This will create the pattern of over 1, down 1.** - Use a flexible curve to connect the points and create the pattern.

looking at the front or side of something, to have elevation (height), 2D

the intersection point of a cone, as seen in the elevation view

a half of a plan view, drawn on the outside of an object

a line representing an edge or bend

an intersection of 2 pieces- an irregular cut on the end of something

the hypotenuse of a cone, outside edge. The slant height is always a true length in the elevation view

the angle or arc which encompasses a radial line pattern