modeling of a sink

[ANdrewa]

hi to all I am experiencing difficulty in designing a sink, because having two different profiles on the x axis and y I can not join them or design them in the same floor. I started creating a family and through extrusion I defined the two profiles, I am following a family already made, but I can not continue. Can you tell me how to improve?! thank you

 

[Tristan]

to the eye that "family already made" has not been modeled with revit (the evident isolinee and the bevels make me lean for rhinoceros, fusion 360 or something similar).
to realize the sink with those exact facts you have to work a lot with the subtraction solids and however the work would be quite complex to get with the tools made available to revit, admitted and not allowed that revit was not born to "model" sanitary

 

[ANdrewa]

Thank you.