This is about extending my skills. So feel free to point me to existing documentation. I wasn't able to find anything.  (Maybe I should focus on my searching skills before I do CAD?)

I have those two cylinder of arbitrary diameter crossing at 90 degree in the same OGS.  I will eventually 3D print this so I need to increase the contact between the two. do me this is similar to modeling a weld bead.  The problem is that I don't even know how to do that in CAD, let alone in xDesign.

Your wisdom or reference is most welcomed.