Engineering Drawing
Engineering Drawing by Er Amit sir CH-1 Drawing instruments and their uses Introduction of drawing For any drawing or construction of building ,instruments have take an important role.with the help of an instrument we prepare drawing easily and accurately. The accuracy of any drawing depends on the quality of instruments.good quality instrument gives good drawing. Drawing instruments- Drawing instruments which are used for drawing purpose are given bellow. 1-Drawing board 2-T-suare 3-Set squares 30 to 60 degree & 45 degree 4-Drawing instrument geometry box which have containing instruments large size compass with interchangeable pencil and pen , small bow compass,large size divider,small bow divider,small bow ink pen , inking pen 5-Protractor 6-Scales 7-Drawing papers 8-Drawing pencils 9-Eraser 10-Duster 11-Drafting Machine Drawing board- The shape of drawing board is rectangular and this board is made of strings of well seasoned soft wood about ...