Engineering Drawing Overview
● Isometric Drawing ● Orthographic or Multiview Drawings ● Dimensioning ● Sectioning ● Drawing Tools ● Assembly Drawings ● Cross-Sectional Views ● Half-Sections ● Sections of Objects with Holes, Ribs, etc. ● More Dimensioning ● Where to Put Dimensions ● Reference Dimensions…
CYCLOIDS AND THEIR CONSTRUCTION
· A cycloid is a curve generated by a point on the circumference of the circle as the circle rolls along a straight line with out slipping.. · The moving circle is…
EPICYCLOIDS
· The cycloid is called the epicycloid when the generating circle rolls along another circle outside(directing circle) · The curve traced by a point on a circle which rolls on the out…
HYPOCYCLOIDS
construction of hypocycloid · The curve traced by a point on a circle which rolls on the inside of a circular base surface. · Step 1: Divide the rolling circle in to…
CONIC SECTION
CONIC SECTION mainly consists of three major parts they are Ellipse Parabola Hyperbola Conic sections are the intersections of a right regular cone, by a cutting plane in different positions,…
PARABOLA and its CONSTRUCTION by ECCENTRICITY METHOD
The parabola is a conic section, the intersection of a right circular conical surface and a plane to a generating straight line of that surface. Given a point (the focus) and…
PARABOLA by TRIANGLE METHOD
A parabola is a curve traced by a point, moving such that, at any position ,its distance from the fixed point (focus) is always equal to its distance from a fixed…
INVOLUTES and their CONSTRUCTION
INVOLUTE ● An involute is a curve that is traced by a point on a taut cord unwinding from a circle or regular polygon, which is called a base or (plane…
SCALES
Usually the word scale is used for an instrument used for drawing straight lines. But actually in Engineer’s language scale means the proportion or ratio between the dimensions adopted for…
Creating a drawing
Drawing instruments are used to draw straight lines ,circles , and curves accurately concisely The drawing tools are like drawing board, mini drafter, instrument box containing compass,divider etc,.. set squares,protractor,french curves, drawing sheet,pencils,erasers.....…
