How to draw Sectional View-Problem 3

Draw Full Sectional View of the given object

The Video shows the step by step method to draw full sectional view of an object

 

How to draw Sectional view-Problem 2

Draw Full Sectional View of the given object

The Video shows the step by step method to draw full sectional view of an object

How to Draw ellipse by rectangle method

Draw Ellipse by Rectangle Method

The Video shows the step by step method to draw ellipse by Rectangle method.

Steps to draw ellipse of major axis 100 mm and minor axis 70 mm by rectangle method

1. Draw rectangle of 100 mm x 70 mm and mark it as PQRS

2. Draw 2 axis lines at the centre and mark the intersection points as ABCD

2.  To draw curve in the left top quarter of the rectangle
Divide the line AQ into 4 equal parts and mark it as 1,2,3 & 4
3.  Divide the line AO onto 4 equal parts and mark it as 1', 2', 3' & 4'
4.  From the point C, draw lines C1, C2, and C3.
5.  From point D, draw line through points 1' till it meet the line C1 and mark this intersecting point as P1.
6.   From point D, draw line through points 2' till it meet the line C2 and mark this intersecting point as P2.
7.  Repeat this procedure for C3 and mark the point P3.
8.  Now draw the quarter of the ellipse by joining the points A, P1, P2, P3 and D.
9.  Repeat this procedure in the other quarters of the rectangle to complete the ellipse.

Draw parabola by tangent method

Draw Parabola by Tangent Method

The Video shows the step by step method to draw a Parabola by tangent method.

Step by Step Method to draw a Parabola of base length 100mm and height 55mm by tangent method

1.  Draw base line AB of length 100 mm

2.  Draw Perpendicular line of length 110 mm ( 2 times the height of parabola ) and mark it as OC

3.  Draw lines CA and CB

4.  Divide the line CA and CB into any equal parts ( 8 equal parts here ) and mark it as 1,2.....8 and in opposite order.

5.  Draw lines connecting the same numbers on both sides.

6.  Draw the parabola curve by drawing tangents to the bottom most lines.

Draw tangent and normal to ellipse

 

Redraw and dimension as per BIS

 

Draw ellipse by concentric circle method