Translations:Part JoinConnect/7/en

1. Create a pipe by applying thickness to a cylinder:
   
2. Create another, smaller diameter pipe, and place it so that it pierces the wall of the first pipe:
   
3. Select the first pipe and the second pipe, and click the 'Connect objects' option from the Join tools dropdown toolbar button.
   
4. Use some cross-section tool (Clipping plane, Arch Section Plane, Arch Cut Plane) to reveal internals. In the picture below, Arch Section Plane is used.