PROJECTION OF SOLIDS (PART-3) TYPES OF BASE OF PYRAMID IN ENGINEERING DRAWING

About this video

• Video Title: PROJECTION OF SOLIDS (PART-3) TYPES OF BASE OF PYRAMID IN ENGINEERING DRAWING
• Channel: TIKLE'S ACADEMY
• Speakers: Not explicitly mentioned
• Duration: 00:25:45

Overview

This video, part three of a series on projection of solids, focuses on the different types of bases for pyramids and how to draw them in engineering drawings. It explains the distinction between drawing a base when a corner is in the HP/VP versus when an edge is in the HP/VP, and similarly for slant edges and slant faces. The video also briefly touches upon the tetrahedron as a special case.

Key takeaways

• Previous Parts: Parts 1 and 2 of "Projection of Solids" cover basic concepts, solid types, and definitions like edges, corners, and axes. These are recommended viewing for a complete understanding.
• Focus on Pyramids and Prisms: Only pyramids and prisms have types of bases that significantly impact drawing solutions, while cones, cylinders, tetrahedrons, and cubes do not.
• Drawing Bases for Pyramids: The video details how to draw the base of square, pentagonal, and hexagonal pyramids based on whether a "corner of the base" or an "edge/side of the base" is in the Horizontal Plane (HP) or Vertical Plane (VP).
  • Corner of Base in HP/VP: The shape is drawn with a corner pointing towards the right.
  • Edge/Side of Base in HP/VP: The shape is drawn with a vertical edge on the right side.
• Slant Edge vs. Slant Face:
  • Slant Edge: The inclined edges connecting the base corners to the apex. Drawing a square, pentagon, or hexagon with a corner to the right helps in problems involving slant edges.
  • Slant Face: The inclined triangular surfaces connecting the base edges to the apex. Drawing a square, pentagon, or hexagon with an edge to the right helps in problems involving slant faces.
• Tetrahedron: A special type of pyramid with four identical triangular faces. Its base drawing follows the same principles as other pyramids, depending on whether a corner or an edge is in the HP/VP.