Problem 1 based on Helix - Engineering Curves - Engineering Drawing

TL;DR

Learn how to draw a helix with a pitch of 50 mm on a cylinder with a diameter of 60 mm and develop the surface of the cylinder.

Transcript

hello friends here in this video we will see a problem based on helix the question is draw a helix of pitch equal to 50 mm on a cylinder of 60 mm diameter and develop the surface of the cylinder so first here i'll write the definition of the helix alex so here i have written the definition of an helix that it is a curve traced by a point when a poi... Read More

Key Insights

• 😥 A helix is a curve traced by a point on a cylinder during one complete revolution.
• 😥 The pitch of a helix represents the height the point covers during one revolution.
• 🤗 The development of a helix involves opening the cylinder and marking the circumference as the length.
• 🥳 Dividing the circumference and circle into equal parts aids in accurately transferring points and creating the helix.
• 💬 The diameter of the cylinder is 60 mm, and the circumference is approximately 188.5 mm.
• 💬 The pitch of the helix in this case is 50 mm.
• 😥 The helix is formed by connecting points on the circle and transferring them upwards.
• 🫥 The helix development is represented by an inclined line.
• 🫥 Half of the helix is visible during rotation, while the other half remains hidden.

Questions & Answers

Q: What is a helix?

A helix is a curve traced by a point on a cylinder when the cylinder completes one full revolution. The point's displacement is called the helix.

Q: How do you draw a helix on a cylinder?

To draw a helix on a cylinder, first draw the front view and top view of the cylinder. Then, mark the pitch and transfer the points upwards to form the helix.

Q: How do you find the length of the development of the helix?

The length of the development of the helix is equal to the circumference of the cylinder, which can be calculated by multiplying pi (approximately 3.14) by the diameter of the cylinder.

Q: What is the significance of dividing the circumference and the circle into equal parts?

Dividing the circumference and circle into equal parts helps in accurately transferring the points and maintaining the proportions of the helix.

Summary & Key Takeaways

• The video explains the definition of a helix and the steps to draw it on a cylinder in the front view and top view.

• The pitch of the helix is given as 50 mm, representing the height the point will cover on the cylinder.

• The development of the helix involves opening the cylinder and marking the circumference as the length, which is approximately 188.5 mm.