Righthand conical helix

The conical helix is a curve generated on the surface of the cone by a point which revolves uniformly around the cone and at the same time either up or down its surface. The method of construction is shown in Fig. 10.13.

1 Draw the front elevation and plan of the cone, and divide the plan view into a convenient number of parts (say 12) and number them as shown.

2 Project the points on the circumference of the base up to the front elevation, and continue the projected lines to the apex of the cone.

12 11 10

4

Fig. 10.13 Right-hand conical helix

3 The lead must now be divided into the same number of parts as the base, and numbered.

4 Draw lines of intersection from the lead to correspond with the projected lines from the base.

5 Join the points of intersection, to give the required conical helix.

Was this article helpful?

0 -1
How To Become A Professional Pencil Drawing Artist

How To Become A Professional Pencil Drawing Artist

Realize Your Dream of Becoming a Professional Pencil Drawing Artist. Learn The Art of Pencil Drawing From The Experts. A Complete Guide On The Qualities of A Pencil Drawing Artist.

Get My Free Ebook


Post a comment