Engineering Drawing Notes PDF
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These notes cover different angles, dimensioning systems, and various types of lines used in engineering drawing, with details on dimensions. It also includes examples and illustrations useful for students preparing for technical drawing courses or examinations. It's suitable for undergraduate engineering students, This document is for note taking and reviewing.
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2 ALPHABETS & NUMBERS 1 VARIOUS ANGLES (USING SETS SQUARE) ABCDEFGHIJKLMN...
2 ALPHABETS & NUMBERS 1 VARIOUS ANGLES (USING SETS SQUARE) ABCDEFGHIJKLMN 10 OPQRSTUVWXYZ 1234567890 3 POLYGONES 20 20 20 20 4 DIMENSIONING SYSTEM 5 TYPES OF LINES 6 USES OF LINES BORDER LINE ALIGNED SYSTEM DIMENSION LINE CONTINUOUS THICK (0.5) OUTER LINE EXTENSION LINE 20 30 HIDDEN LINE CENTER LINE CONTINUOUS THIN (0.2) SECTION LINE 30 40 4 or 6 50 DASHED LINE (0.3) 20 2 or 3 2 or 3 2 or 3 R20 CENTER LINE (0.2) 50 10 or 20 30 UNIDIRECTIONAL SYSTEM CUTTING LINE (0.2 & 0.5) A A 20 70 THIN WAVY LINE (0.2) CUTTING PLANE LINE LEADER LINE PROJECTION LINE 30 ALL DIMENSIONS ARE IN mm. 50 SHORT ZIGZAG THIN (0.2) DATE SIGN STD. CKD. R20 DIMENSION - ARROW (0.2) COMP. 50 X 3X B.E. 1st SEM ME B. R. DABHI (VALUES IN BRACKET SHOWS THICKNESS IN mm) 090540119000 SCALE - 1:1 C 0' 1 4 2 N T' 3 0 P P C 1 P P 1' 3 5 S P P P P 2 P P 2' P P 3 3' C P P N' 4 P P 4' P 6 T 2 80 P P A 5 5' B 4' O 4 3 2 1 0 1' 2' 3' 4' P A P 72 3' 5' B F 12 3 4 F P P P P 2' 6' P P P P O 7' P P P P AP 1 1' 7P B P P P P F F D 8' D 130 P 12' P 90 11' 9' 10' 30 12 P P 8 M' B P D 5 P 9 7 T' 0D P V C N P P 0' 11 9 1 S P P 1' M 10 C 2 P P 2' 50 N' 3 T 3' P P 4 4' 4 12' P 2 P 4' 5' B A 5 4 3 1 0 1' 2' 3' P 8 D' 11' 100 10' 6 9' P 7 8' 0,12 7' 6 C P 1 2 3 4 5 6 6' 1 11 9' 8' 7' 0 N Y T 5' 2 10 1' P S 4' 2' 45 P 3 9 60 20 15 3' P P P P 3' P P 4'5' P Y 2' 4 8 P P P 6' N' P P T' 6 1' P 5 7 P D T P V O A 6 6 X X P P P O V V' 7 P P 5 1 F 2 3 4 5 6 7 8 9 10 11 12 P ALL DIMENSIONS ARE IN mm. 8 P P 4 N DATE SIGN N' S 9 P P 3 60 P STD. P 10 2 CKD. P P 11 P P 1 COMP. P P P P T' P P P 12 P P 0 B.E. 1st SEM ME A 0 B D. A. SOLANKI D 100 090540119000 SCALE - 1:1 2 C = CONSTANT OF CURVE N' P 2 ROLLING CIRCLE T 1 T 6 P P 3 P 1 7 5 P P S 4 8 P P 3 N T' N 9 C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 P C11 C12 P P 2 10 P S 11 P 1 P N' M 0,12 P 1 2 3 4 5 6 7 8 9 10 11 12 P 2 P P 4 P O 8 7 6 5 4 3 2 1 0 0,8 4 DIRECTING LINE R 60 T' C P DIRECTING CIRCLE P C5 C6 C7 C4 C8 P 3 2 C3 4 C9 C2 C10 1 5 N' 5 C1 C11 7 C0 O C12 P 0,12 T P P P P P P 6P P P P P P S R 84 11 P 6 7 ROLLING CIRCLE P 10 8 9 P T' P N P N' T P 5 C P 3 P S P 5 6 7 P C6 C7 4 C5 P T' 8 C4 C8 3 O N 9 r 30 C9 2 10 M C3 P P 1 0,1211 P C10 4 P P 3 C2 P 1 2 3 4 5 6 7 8 9 10 11 12 5 P P 2 2 P C1 C11 6 ALL DIMENSIONS ARE IN mm. P P C0 1 C12 DATE SIGN 7 P STD. P P 0,12 P CKD. 8 COMP. R 80 11 9 10 B.E. 1st SEM ME S. P. PANSURIA DIRECTING CIRCLE O 090540119000 ROLLING CIRCLE SCALE - 1:1 1 b' b' 2 3 b' b' n' n' TL TL FV FV TL FV m' n' a' LFV b' a' b' X Y 12 n n 20 35 TV TL X Y X Y 25 b 30 a a'b' = LFV = 66 a'b' = LFV = 60 LTV b'a'b m n b'a'b a b ab = LTV = 57 TL ab = LTV = 45 TV bab m'n' = LFV = 53 m'n ' = mn = TL = 75 bab a'b ' = ab = TL = 80 a'b ' = ab = TL = 70 TV n'm'n n 'm'n ' = TL b 'a'b ' = mn = LTV = 65 n mn b 'a'b ' = b ab b b b ab nmn b b 4 5 b' b' 6 b' a' FRONT VIEWS FV TL 50 b e 50 p' 35 q' a a c 30 25 p b' q c' 15 e' g,g' TV 30 X Y 22 f 20 20 b 25 X Y X Y 35 TL c 40 45 a d 30 TV TL f' 42 FV TL TOP VIEWS c' a' a' q q d' b b q' q' ALL DIMENSIONS ARE IN mm. a'b' = LFV = 97 a 'b ' = a b = TL = 112 DATE SIGN p'q' = LFV = 90 pq = LTV = 72 p'q ' = pq = TL = 105 b'c'b b 'c'b ' = STD. q'p'q qpq q 'p'q ' = ab = LTV = 80 b cb CKD. q pq b cb COMP. B.E. 1st SEM ME LFV = LENGTH OF FRONT VIEW = INCLINATION OF TL WITH HP = INCLINATION OF FV WITH HP FV = FRONT VIEW P. B. PATEL LTV = LENGTH OF TOP VIEW = INCLINATION OF TL WITH VP = INCLINATION OF TV WITH VP TV = TOP VIEW 090540119000 SCALE - 1:1 FRONT VIEW 1 c' c' c' 2 FRONT VIEW e' e' b', d' b' b' e' d' a' a' d' d' a' b',d' c' a' a' a' d' d' X Y 30 a' d c' d d d b' b' a c' b' TL c' a LTV a c a c 35 X Y c c b a b b b b a, b c, d e a,b 50 TOP VIEW e c c,d FRONT VIEW e d 3 b' b' TOP VIEW a', c' b' a',c' c' a' X Y FRONT VIEW a a a 4 e' d' e' f' f' g' d' c' g' a' g' f' a' c' X Y 55 b' c' d' e' b' b' a' c a a b b g a b g c c f f g TOP VIEW e e f 60 5 FRONT VIEW e' e' e' e d',f' f' f' d d b d' c d d' c',g' g' g' c c b b c' c' b',h' h' h' TOP VIEW a' b', h' c', g' d', f' e' b' b' X Y a' a' a' ALL DIMENSIONS ARE IN mm. g g g f f g h f h f e DATE SIGN h e STD. h CKD. a e a e d COMP. V TL LT a d a B.E. 1st SEM ME c D. S. DADHANIYA b d b d b b c 090540119000 c c TOP VIEW SCALE - 1:1 FRONT VIEW 1 2 o' TRUE SHAPE a' a' m c SECTIONAL b',d' s' d' s' FRONT B Y h = 64 g' g b' H VIEW n o' g' c' h/4 c' 50 o' o' X s' c' X Y a' b',d' c' b b b n' X a',b' Y m' c' c s a n a o,s,g c c s a o a B/2 g g c c 50 d o B/2 40 B = BASE OF TRIANGLE d d o H = HEIGHT OF TRIANGLE m SECTIONAL TOP VIEW TOP VIEW b d c b c FRONT VIEW e SECTIONAL SECTIONAL 3 FRON0T VIEW 4 FRONT VIEW 5 SCALE 1:2 1' 1' b Y f o' Y o' 2',4' 2' 4' 1' 2',4' 3' g d s' 3' a' s' a' 3' d' 50 a h e' d' a b',d' b' c' f' X Y TRUE SHAPE c' g' TRUE SHAPE a' b',d' c' c' c' 65 b' 65 d' d,4 d a d X b' h' X 32.5 36 1 4 a' a' a,1 a 1 c 3 c X Y c,3 X b',h' c',g' Y a' b',d' b a' d',f' e' c' 3 50 g b,2 b 2 TOP VIEW 2 h d f ALL DIMENSIONS ARE IN mm. h g d f