Textbook of Engineering Drawing, Second Edition

4.28 Textbook of Enginnering Drawing------------------ 4.3.1 Cycloid A cycloid is a curve generated by a fixed point on the circ ...

_____ Geometrical Contructions 4.29 4.3.2 Epi-Cycloid and Hypo-Cycloid An epi-cycloid is a curve traced by a point on the circum ...

4.30 Textbook of Enginnering Drawing------------------ A smooth curve through the points P1,P 2'P 3 etc., is the required epi-c ...

---------------__ GeometricaIContructions 4.31 The curve through A, PI' P 2 , P 3 and P 4 is the required involute. A P 4 is equ ...

4.32 Textbook of Enginnering Drawing------------------ a line IT drawn through M and perpendicular to BM is the tangent to the c ...

---------------------GeometricaIContructions 4.33 The gear tooth profile is nonnally of the involute curve of circle as shown i ...

4.34 Textbook of Englnnering Drawing------------------ 1 at PI both above and below the axis of the conic. Similarly, mark poin ...

--------------___ Geometrical Contructions 4.35 With centre 03 and radius = 03B draw an arc 4B3 and with centre 02 and radius = ...

4.36 Textbook of Enginnering Drawing------------------ c --~~-----------~ Fig. 4.52 Trammel Method o QO intersect the major and ...

---------------------GeometricaIContructions 4.37 Draw the major axis AB = 120 m and minor axis CD = 60 m. Both ILxes bisect ea ...

4.38 Textbook of Enginnering Drawing------------------- Through A and B draw lines parallel to CD. Through C and D draw lines p ...

--------------------_Geometrical Contructions 4.39 o Parabola Fig. 4.56 Construction of a Parabola such that OV = Scm. Now OV is ...

4.40 Textbook of Enginnering Drawing------------------ 7'C====:2~~~~=--------. T Q V I ~\ =, ~L Fig. 4.57 Rectangle Method AD. T ...

_____ Geornetrical Contructions 4.41 Divide PO and SR into any number of (4) equal parts as 1, 2, 3 and 11 , 21 , 31 respective ...

4.42 Textbook of Enginnering Drawing------------------ R p?-l-__ -D~ ____ ~_I Fig. 4.60 Draw VE perpendicular to the axis such ...

--------'----------------Geometrical Contructions 4.43 locus of the point and name the curve. Mark asymptotes and directrices. S ...

4.44 Textbook of Enginnering Drawing------------------ Through Q erect vertical such that ppi ::;:: double ordinate::;:: 90mm :: ...

_____ GeometricaIContructions 4.45 From'4 1 and 51 draw lines parallel to O~ and from 4 and 5 draw lines parallel to ORI to int ...

4.46 Textbook of Enginnering Drawing------------------ 5, The required curve (epicycloid) is the path of the point P on the circ ...

-------------_____ GeometricaIContructions 4.47 o Fig. 4.66 Epicycloid 1\ e = ~X360 0 R = 20 x3600 = 960 75 21t r r To calculate ...