Something we see more and more today is a sharp(er) edge connecting two rounded surfaces. It’s on everything - the samsonite luggage on the front page, a blender I have sitting beside me, my logitech joystick…
The epitome is BMW’s “flame surfacing” - the sharp lines along the base of the door and the rear bumper of this Z4. What is the official term for those sharp edges connecting rounded surfaces? It’s almost the opposite of a fillet, come to think of it.
I figured that since there’s a specific term for a rounded edge connecting two flat surfaces (fillet), that there might be a term for this. Or is a fillet just a junction between two surfaces of different curvature? In that case I guess that fillet might be the right term as well.
Skinny: I think they’re very cool. They make for great organic-technological shapes.
In that case, having worked on the samsonite example shown, I just called it the intersection between two surfaces, when working with the engineer on the project. On the hinged part that holds the wheel it is also the tool part line. Might be on the main housing too, I forget, it’s been awhile.
well, if you’re an old-school pattern-maker type (which I was…) you’d refer to them as “breaklines”. an outside “fillet” (edge) was refered to as a “round”. if it was not mathmatically defined, it was referred to as a “blend”.
when trying to fabricate these details by hand their intersection is called a “sonuvabitch”.
Q.V. your post where you complained about needing a spell checker…
Thanks for the help, though. If nothing else, the fact that there are so many opinions on what it’s called means that I probably won’t lose marks whether I call it a fillet, an edge, a blend, a seam, a crease, a breakline…
As far as I am concerned, we can find a term of our own and say its official. Something like skritz-fritz curves or bongo-dingi dango- bluga bluga connections. Mad man! I am goin’ crazy. Nevertheless, lets keep to the essence of design. Thats my opinion.