Reply To: How to model pipe intersections?

[Martin Bergwerf]

You can have a look at this course:

https://cgcookie.com/courses/create-realistic-industrial-environments-with-blender-and-eevee

And there are Pipe Joints available, if you enable the  Mesh:Extra Objects Addon and the Loop Tools Addon has a nice Bridge function that can be helpful:

You can also start by Booleaning pipes and then work from there…and there is the Spin Tool…