This document outlines a syllabus for technical drawing. It covers basic instruments like drawing sheets, pencils, and mini drafters. It discusses dimensioning, scales, lines, conic sections, special curves like cycloids and involutes, orthographic projections of points, lines, planes and solids. It also covers isometric projections, developments of surfaces, and sections of solids. Conversion factors and conventions for indicating materials are presented.

1. Devendra pulast

2. SYLLABUS
1) BASIC
INSTRUMENTS
2) DIMENSIONING
3) SCALES
4) LINES
5) CONIC SECTION
6) SPECIAL CURVES
7) POLYGONES
DRWAING ORTHOGRAPHIC
PROJECTIONS
1) POINS
2) LINE
3) PLAINE
4) SOLID
ISOMETRIC
PROJECTION
DEVELOPMEN
T OF SERACE
SECTION OF
SOLID

3. BASIC INSTRUMENTS
1) DRWAING SHEET (IS 10711: 2001)
 The length to width
ratio is √2 : 1
 The surface area of basic
A0 size drawing sheet is
nearly 1 𝑚2

4. 2)Pencils

5. Mini drafter

7. Dimensioning :-
Indicating the sizes of the features of the object
and other details for its construction and function
on a drawing by the use of line number symbols
notes ,etc.
METHODS OF DIMENSIONING
1) Aligned method
2) Unidirectional method

9. Rules for dimensioning
Page 48 see
(1) holes

13. Basic conversion factors
Length conversion
10mm = 1cm
10cm = 1 decimeter
10dm = 1 meter
10 m = 1 decameter
10 dam = 1 hectometer
10 hem = 1 km
M.K.S // F.P.S. system
25 mm = 1 inch
12 inch = 1 foot
3 feet = 1 yard
220 yard = 1 furlong
8 furlong = 1 mile
1 mile = 1.6023 km

14. scales
To understand scales 4 parameters must be necessary
(1) RF ( representative factor)
(2) SIZE
(3) UNITS
(4) TYPES

17. PLAIN SCALE
A plain scale consist of a line divided into suitable
number of equal parts or units the ,the first of which is
subdivided into smaller parts .
Plain scales represent either two units or a unit and its
subdivision

18. Q. When 1 centimeter represents 4 meters and long
enough to measure up to 50 meters. Then what
would be the RF and length of scale.

19. Lines

21. Conventions for materials

22. Conic section

24. Eccentricity

27. Engineering curves

29. Cycloid

30. Epicycloids

31. Hypocycloid

34. Trochoids

36. Involutes

38. Spiral
A curve on a plane that winds around a fixed center point at a contin
uously increasing or decreasing distance from the point.

40. Helix
A curve on the surface of a cylinder or cone such that
its angle to a plane perpendicular to the axis is
constant; the three-dimensional curve seen in a
screw or a spiral staircase.

41. Projection

48. Perspective projection

52. Projection of point

53. Projection of line

61. Projection of solid

71. Development of surface

75. 10

76. Isometric