Engineering GraphicsCAD

Setting Up The Drawing Environment

This normally involves a couple of steps.Defining the unitsDefining drawing limitsSetting grid and snap dimensionsNote that you can redefine these items at anytime. But you must do the settings at every time you open the AutoCAD

First StepCommand : Units then Press enterSet to mmCommand: Limits then Press enterLower left corner : 0,0 then Press enterUpper Right Corner : 210,297 (A4 Sheet) then Press enterCommand: Zoom then Press enterAll then Press enterCommand: Grid : 10 then Press enterCommand:Snap: 10 then Press enter

Co ordinate SystemsCartesian : X,Y Measures from OriginRelative Cartesian : @X,Y(X & Y are distances from previously defined point) Polar : L < (L Length from origin ; Angle from X axis )Relative polar : @L <