left / green
UseExtrusions = PolySurface (no Extrusion)
right / grey,black
UseExtrusions = Extrusions (“on”)
drawing a planar closed Degree 3 Curve and create a closed _extrudeCrv (useExtrusions “on”).
Explode (and delete Caps)
The resulting surface is closed, not periodic.
while all other Workflows (no Extrusions, no Solid Extrusion) produce periodic Surfaces.
solidExtrusion_notPeriodic.3dm (2.9 MB)
workaround:
can be fixed with _ MakePeriodic
thanks for a fix
kind regards - tom