Sweep1 Shadow Error - Rhino for Mac

jon.zimanbright · February 27, 2018, 8:34am

I’ve had this problem for the last couple of years and always thought it was just a graphical error but I tried to get something 3d printed and the geometry was unusable and had to be remodelled by someone else. I thought maybe it was just a Rhino Mac thing but I don’t think anyone else in my office is having this problem.

Simple 1 rail sweeps create these strange shadowed areas which carry over into other softwares so it isn’t just graphical.

sweep1 shadow error.3dm (1.9 MB)

Thanks

Jon

Stratosfear · February 27, 2018, 9:10am

The arc of your profile curve is bad. It has stacked cv at both ends. Rebuild it and it will sweep as a proper polysurface. Also make sure your profiles are planar.

jon.zimanbright · February 27, 2018, 9:45am

Ah thanks that worked when I redrew the profile. I think it’s down to me always using stock profiles I have rather than redrawing over them which is obviously very silly of me.

Will update if I see it again on new curves.