Sequence for figure 1.1
S-1: SELECT THE CIRCLE TOOL AND MAKE TWO CONCENTRIC CIRCLES AS SHOWN
WITH APPROPRIATE RADIUS
S-2: DRAW A LINE AT 60 DEGREE TO HORIZONTAL OF LENGTH 60 MM AND A
VERTICAL LINE AS SHOWN
S-3: DRAW CONCENTRIC CIRCLES OF RADIUS 18 MM AND 10 MM TAKING THE
END OF THE 60 MM LINE AS CENTRE
S-4: SELECT THE MIRROR TOOL AND SELECT THE SMALLER CONCENTRIC CIRCLES
AS OBJECTS AND TAKE THE VERTICAL LINE AS THE MIRROR LINE AND MIRROR
THEM. (MAKE SURE OBJECT SNAP WITH ENDPOINTS IS TURNED ON)
S-5: SELECT THE CIRCLE TOOL IN TAN,TAN,RADIUS MODE AND SELECT THE TWO
OUTER OF THE CONCENTRIC CIRCLE FOR TAN,TAN AND TAKE 17 MM AS RADIUS
S-6: SELECT THE CIRCLE TOOL AGAIN WITH TAN,TAN,RADIUS MODE ON AND TAKE
5MM AS RADIUS SELECTING THE CIRCLES SHOWN BELOW SYMMETRICALLY ON
BOTH SIDES OF THE VERTICAL LINE
S-7: TRIM THE PARTS NOT REQUIRED TO GET THE MODEL SHOWN BELOW USING
THE TRIM TOOL
S-8: SELECT THE MIRROR TOOL AND SELECT THE REQUIRED OBJECTS (
CONCENTRIC CIRCLE DESIGN) AND SELECT THE CENTRE OF THE BIGGER CIRCLE
AS FIRST POINT AND TAKE THE SECOND POINT HORIZONTALLY AND MIRROR
S-9: SELECT THE OFFSET TOOL AND OFFSET THE SHOWN LINES BY 4MM ON
BOTH SIDES TO GET THE FOLLOWING AND SUBSEQUENTLY MIRROR THE SAME
EVERY SIDE, HORIZONTALLY AND VERTICALLY AND TRIM THE PARTS NOT
REQUIRED
S-10: AFTER TRIMMING FOR THE UPPER AND LOWER PARTS. MAKE A
HORIZONTAL LINE AND OFFSET IT BY 4MM ON UPPER AND LOWER SIDE AND
TRIM APPROPRIATELY TO OBTAIN THE FOLLOWING
S-11: NOW EXTEND THE LINES INITIALLY DRAWN AT 60 DEGREES AND THE
VERTICAL LINES A BIT AND MAKE A NEW LAYER USING THE LAYER PROPERTIES
TOOL LOADING IN THE HIDDEN LINE STYLE FOR THE NEW LAYER AND MAKE
THESE LINES DOTTED
S-12: NOW DIMENSION THEM APPROPRIATELY AND COLOR CODE
APPROPRIATELY TO OBTAIN THE FINAL RESULT