SR No.TITAL 1PRACTICE SHEET 2ENGINEERING CURVES 3ORTHOGRAPHIC PROJECTION 4PROJECTION OF POINT AND LINE 5PROJECTION OF PLANE 6GRAPH AND CHARTS AND FREE HAND SKETCH 7ISOMETRIC PROJECTION 8THEORY ASSIGNMENT INDEX

LIST OF DRAWING INSTRUMENTS  Drawing Board  Instrument Box  French curve  Tee-Square  Scale  Proportional Divider  Mini Drafter  Protector  Circle Master  Set-Square 45°  Eraser  Drawing paper  Set-Square 30°-60°  Drawing Pins, Clips.  Set of Pencils

LAYOUT OF DRAWING SHEET

Drawing space Drawing space Title block d d c c c Border lines 1. Type X (A0~A4) 2. Type Y (A4 only) Orientation of drawing sheet Title block Sheet size c (min) d (min) A A A A A

DETAILS OF TITLE BLOCK

ARROWHEAD

SCALE USE FOR TECHNICAL DRAWING CATOGORYRECOMMONDED SCALE FULL SIZE SCALE 1:1 ENLARGEMENT SCALE10:1 2:15:1 20:150:1 REDUCTION SCALE 1:21:51:10 1:201:501:100 1:2001:5001:1000 1:20001:50001:10000

StraightSlantedCurvedHorizontal Examples: “I” letter “A” letter “B” letter LETTERS AND NUMERALS

Straight line letters Curved line letters Curved line letters & Numerals UPPER-CASE LETTERS & NUMERALS

I L T F E H

VXW

N MK Z YA 4

O QC G

D UPB RJ 12

5 7

S 3