How to sweep vertical or horizontal profile?

[Anonymous]

Here's another situation that seems impossible in Fusion 360.

Or... I don't know how to do it.

I have a T-spline plane, two corners rounded and sculpted in three dimensions, of which I want to use the 3D edge as path for a sweep. The profile to sweep is supposedly a simple rectangle, but there's material needed above the sweep path and much more below it, so I've centered a rectangle on the starting point of the T-spline edge corner and drew another tall one below it. Select both to sweep.

Problem:

Parallel mode keeps verticality okay, but does not go all the way around to completion. And worse, it keeps the profile (rectangles) parallel to the sketch plane, which is not what I want.

Perpendicular mode oddly angles the sweep inward below the T-spline, which again is not what I want.

I want to keep the rectangle vertical like a curved architectural wall where the wall thickness remains consistent. Yet have the top (of wall) slope down gradually along the length of the wall according to the height of the T-spline edge. Technically, this is probably called perpendicular to the normal angle only in XY plane with Z angle zero. I have Z axis up.

Possible?

Alternatively it can be a boolean subtraction of solids (Cut command in Fusion), but the "top of wall" still needs to be horizontal in cross section where any perpendicular section view of the wall shows top of wall as level. This means some kind of  horizontal sweep using the T-spline edge is still needed.

Any other solution?

[Anonymous]

Yeah, I really wish it would work. It sounds like a great idea.

Attached is another simple untitled random attempt. Same procedure. Same problem.

[TrippyLighting · Accepted solution]

Your files contain two T-Splines indicated by the two purple icons in the timeline.

Only the first T-Spline is needed to extract the curve.

Then you need to change from the Model workspace into the Patch workspace ant extrude the curve into a surface etc.

[Anonymous]

Ahh YES. Thank you.

I'm a newbie. It certainly seems like two ways of doing the same thing. It's like eating curry Samosas. Eat with your left hand, and you die. However, eat with your right hand, and you grow up to become a tall successful strong handsome healthy Superman.

Eat carefully.

[fritter63]

@TrippyLighting,

FYI, I just tried your solution on a model with a similar problem, where a curved surface was created with the intersection of an angled cylinder and left a slopped top. using your thicken approach worked perfect!

Thanks.

[TrippyLighting]

Cool. Thanks for the feedback!