Whenever I try to union the top object into the bottom one, the bottom one vanishes. I assume I’ve got something wrong with the object, but can’t work out what. Anyone got any thoughts?
union error.3dm (90.8 KB)
the upper part is not solid, it has naked edges.
see properties → open polysurface
find naked edges → _showEdges
the normals point inwards → _dir
my approach:
_explode
delete unneeded, inner surface
_join
worked:
(rhino 8 on mac)
union error_tom_p_fix.3dm (3.0 MB)
kind regards - tom
Thanks for the explanation! I have a lot to learn about making custom shapes. This helped a lot.
You could also build your object from simple NURBS surfaces and join the surface once ready for exporting. No booleans needed.
union error.3dm (2.2 MB)