Anyone know how to model this corner?


different depth/width but same number of corrugated

Moved to Rhino category.

How far did you get in figuring this out on your own?
It looks pretty simple after going through some basic tutorials.

Hello - the simplest is probably to make the steps as a profile and Sweep1 on the lower/inner path polyline:


Hi Pascal and John,

Thanks for replying! The question I am wondering is there any easy way to deal with the sweep rail with different profiles (same corrugated number but different depth), the shape will be twisted. See image below:

Hello- please post a file with your curves.


Thanks, please see attached!
curve extrusion.3dm (6.9 MB)

Hello- is this it?
curve extrusion_Maybe.3dm (673.7 KB)


Yes! Curious how you made it!

I know one way is to project the profile on diagonal surface and use loft. but wondering is there any other easy way

That is the way - I made the corner profiles from a TweenCurves oriented and scaled into position so as to approximate, hopefully, the shape as it progresses to the middle one. I did not include your middle curve in the loft.




I see, thanks Pascal!