MODIFY COMMANDS- ERASE – COPY, MIRROR, OFFSET, ARRAY, MOVE,
ROTATE, SCALE, STRETCH, LENGTHEN, TRIM, EXTEND, BREAK,
CHAMFER, FILLET, EXPLODE, PEDIT.
OBJECT SNAP METHODS, DIMENSIONS COMMANDS.
OTHER USEFUL COMMANDS- ZOOM, PLOT, LTYPE, BLOCK, INSERT, AND
DIVIDE.
CONSTRUCTIONS OF CONIC SECTIONS. (MANUAL DRAFTING AND
COMPUTER AIDED DRAFTING)
CONIC SECTION: CONE – CONIC SECTIONS- DEFINITION OF LOCUS,
FOCUS, DIRECTRIX, AXIS, VERTEX AND ECCENTRICITY- DEFINITION:
ELLIPSE AND PARABOLA
ELLIPSE: CONSTRUCTION OF ELLIPSE BY CONCENTRIC CIRCLE
METHOD, RECTANGULAR METHOD AND ECCENTRICITY METHOD WITH
TANGENT AND NORMAL WHEN FOCUS AND DIRECTRIX ARE GIVEN –
EXERCISES.
PARABOLA: CONSTRUCTION OF PARABOLA BY RECTANGULAR METHOD,
PARALLELOGRAM METHOD AND ECCENTRICITY METHOD WITH TANGENT
AND NORMAL WHEN FOCUS AND DIRECTRIX ARE GIVEN – EXERCISES
CONSTRUCTIONS OF SPECIAL CURVES. (MANUAL DRAFTING )
SPECIAL CURVES: DEFINITION – CONSTRUCTIONS OF CYCLOID –
EPICYCLOID – HYPOCYCLOID – EXERCISES.
INVOLUTES OF A CIRCLE – ARCHIMEDEAN SPIRAL – HELIX –
EXERCISES