Creating the second component part: the t junction

Now, an intersection composed of two pipe sections will be created in a separate file and the surfaces will be trimmed. Then this file will be imported to the original model to create the entire piece.

Creating one of the pipe sections

1. Choose Files New, thus starting work in a new file.

2. Choose Geometry Create Point and enter points (0, 9) and (0, 11). Press ESC to conclude the creation of points.

3. From the Copy window, select Points and Rotation. Enter an angle of 180 degrees and from the Do extrude menu, select Lines. The axis of rotation is the x axis. Enter two points defining the axis, one in First Point and the other in Second Point, for example, (0, 0, 0) and (100, 0, 0). (Figure 22)

4. Click Select and select the two points just created.

5. Repeat the process, this time entering an angle of -180 degrees, thus creating the profile of the pipe section with a second rotation of 180 degrees. The rotation could have been carried out in only one rotation of 360 degrees. However, in the present example, each circumference must be defined between two points. (Figure 23)

Figure 22. The result of the first
180-degree rotation

Figure 23. The combined result of the first rotation and the second rotation of
-180 degrees, thus obtaining the profile of the pipe section

6. From the Copy window, choose Lines and Translation. In First Point and Second Point, enter the points defining the translation vector. Since the pipe section must measure 40 length units, the vector is defined by points (0, 0, 0) and (-40, 0, 0).

7. From the Do extrude menu, choose the option Surfaces.

8. Click Select to select the lines that define the cross-section of the pipe. Press ESC to conclude the selection process.

Figure 24. Creating a pipe by extruding circumferences