Creating the end of the pipe
- From the Copy window, select Surfaces and Rotation.
Enter an angle of 180 degrees. Since the rotation may be done in 2D, choose
the option Two Dimensions. The center of rotation is the upper right
point of the pipe elbow. Make sure the Do Extrude menu is in the No
mode.
- Click Select and select the surfaces that join the two pipe sections.
- In the Move window, select Surfaces and Translation.
The points defining the translation vector are circled in Figure 19.

Figure 19. The circled points
define the translation vector.
- Click Select and select the surfaces to be moved. Press ESC.

Figure 20. The final position of the translated elbow.
- Choose Geometry
Create
Planar Surface and select the four lines that define the opening of the
pipe. (Figure 21) Press ESC.
- From the Files menu, choose Save in order to save the file.
Enter a name for the file and click Save.

Figure 21. Opening at the
end of the pipe