Divide the working area into four equal areas for four problems per sheet to be assigned b...

Divide the working area into four equal areas for four problems per sheet to be assigned by the instructor. Data for the layout of each problem are given by a coordinate system in metric dimensions. For example, in Exercise 1 no. 1, is located by the scale coordinates (28 mm, 38 mm, 76 mm). The first coordinate locates the front view of the point from the left edge of the problem area. The second one locates the front view of the point from the bottom edge of the problem area. The third one locates either the top view of the point from the bottom edge of the problem area or the side view of the point from the left edge of the problem area. Inspection of the given problem layout will determine which application to use.

1. Revolve clockwise point 1(28, 38, 76) through 210° about the axis 2(51, 58, 94)—3(51, 8, 94).

2. Revolve point 3(41, 38, 53) about the axis 1(28, 64, 74)-2(28, 8, 74) until point 3 is at the farthest distance behind the axis.

3. Revolve point 3(20, 8, 84) about the axis 1(10, 18, 122)-2(56, 18, 76) through 210° and to the rear of line 1-2.

4. Revolve point 3(5, 53, 53) about the axis 1(10, 13, 71)-2(23, 66, 71) to its extreme position to the left in the front view.

5. Revolve point 3(15, 8, 99) about the axis 1(8, 10, 61)-2(33, 25, 104) through 180°.

6. By revolution find the true length of line 1(8, 48, 64)-2(79, 8, 119). Scale: 1:100.

7. Revolve line 3(30, 38, 81)-4(76, 51, 114) about axis 1(51, 33, 69)-2(51, 33, 122) until line 3-4 is shown true length and below the axis 1-2.

8. Revolve line 3(53, 8, 97)-4(94, 28, 91) about the axis 1(48, 23, 81)—2(91, 23, 122) until line 3-4 is in true length and above the axis.

9. Revolve line 3(28, 15, 99)-4(13, 30, 84) about the axis 1(20, 20, 97)-2(43, 33, 58) until line 3-4 is level above the axis.

Example 1

Divide working area into four equal parts, as shown. Draw given views of prism as shown in space I; then draw three views of the revolved prism in each succeeding space, as indicated. Number all corners. Omit dimensions. Use Form 3 title box.