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 12 equal divisions. · Step 2: Transfer the 12 divisions on to the base surface. · Step 3: Mark the 12 positions of the circle – center…
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, relative to the axis of the cone. PARABOLA The parabola is a conic section, the intersection of a right circular conical surface and a plane to…
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 a corresponding line (the directrix) on the plane, the locus of points in that plane that are equidistant from them is a parabola OR SIMPLY…
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 straight line (directrix) parabola can be constructed in many ways.. like eccentricity method, triangle method, oblong or rectangle method etc…. Triangle method triangle method of…
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 figures for part of this unit which includes a line, triangle, square, hexagon) The involute is a form of spiral, the curvature of which becomes…
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 the drawing and the corresponding dimensions of the object. It can be indicated in two different ways. Example: The actual dimensions of the room say…
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….. DRAWING STANDARDS ● Drawing standards are set of rules that govern how the technical drawings are represented ● these are used so that everyone can commonly understand…