- Draw a line as a route or channel of the pipe like the images in the show number 2.
- Draw a circle the size of the pipe as a provision that would we want such a picture.
- Extrude the circle using the extrude → path (click polyline figure 2).
- Enter / OK.
Figure 2 should be shaped polyline
Sumber : Autocad 2D - 3D Tangerang