INTRODUCTION TO AUTOCAD 1 TECHNICAL DRAWING MEC 112 week 1 WEEK 12 12.0: Polar Tracking Right click on the shown below: and choose the Settings option at the bottom of the list as The increment angle is 30°. INTRODUCTION TO AUTOCAD 1 TECHNICAL DRAWING MEC 112 week 1 12.1: Object Snap Tracking Consider that you want to draw a circle in the middle of a rectangle like the example below: To do this exercise, make sure that your Midpoint Osnap is on. Command: _rectang Specify first corner point or [Chamfer/Elevation/Fillet/Thickness/Width]: 100,100 Specify other corner point or [Area/Dimensions/Rotation]: 200,200 Command: _circle Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: >> Resuming CIRCLE command. Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: Move your cursor over the middle of the bottom line of the rectangle. You should see a light dotted line project vertically through your cursor. Now move your cursor to the middle of the right vertical line of the rectangle. As you move your cursor towards the center of the rectangle, you should see the 2 dotted lines cross. It should look like this: INTRODUCTION TO AUTOCAD 1 TECHNICAL DRAWING MEC 112 week 1 Specify radius of circle or [Diameter]: 25 12.2: QUIZ SHEET (5) – 1) Draw the figure (Fig. 12.2) shown below , and add the following : 1. All dimensions 2. Text (Fig. 12.2) 2) Draw the figure (Fig. 12.3) shown below , and add the following : 1-All dimensions 2-Text (Fig. 12.3)