Help needed. :) how to make a constraint to draw a line on a surface?


I was learning the section of ‘Modeling the Dish - Creating Datum Entities’ in lessen of Creo Parametric Design Fundamentals series.

I met a problem that when I set the dimension according to the tutorial, it is supposed to be the same as the video shows.

However, when i set final constraint to make the bottom line perpendicular to the center line, the whole sketch just move the the upper area.

I think the key is to draw the top line at the plane of the bottom surface of the existing object. But i don’t know how to do it. I will really appreciate it if you could help me on this. THANKS A LOT!



Is your line from the axis to the outer edge a line or an arc? It is suppose to be an arc.