Pipe / Tube along a Path
This command creates CAD surface(s) corresponding to a circle extrusion along path(s).
Requirements
Select one or several paths (a CAD wire, a CAD curve, CAD compound with wires and curves only, or a linear geometry) and launch the command.
Define the Radius of the circle used for the extrusion computation.
Check Close extremities if you want a closed CAD surface as output.
Notes
If the selected path is closed, the resulted CAD surface will be necessarily closed. So, the option is greyed out if all selected paths are closed.