Hi guys, new to this forum.
I ran into an issue while modeling. My 3D printing program was telling me that the model I made was “inside out”. I went back and checked it with the Check command and found a single surface that was causing an issue. I got this message:
“Rhino surface object is not valid. ON_Brep.m_T.m_bRev3d = false, but closed curve directions are opposite.”
How do I go about fixing this issue? Any advice?