Hi,
V5
I do an OffsetSrf 0.1mm solid and end up with 29 naked edges on what was a solid item.
I decide to rebuild its results, shuldnt have to fiddle around as this though, so I do some trimming and creating planar surfaces, yet at ‘A’ where I need to trim the curved surface to the shelf, I run Intersect and I get a line BELOW, the shelf !
ground to a halt.
Now what to do ?
OffsetSrf littered with naked edges.3dm (431.4 KB)
Steve
Hi Steve,
Yeah, that’s a bug in the offset command. But what you need it to do there at the shoulders is quite tricky, with surfaces moving past each other in opposite directions and creating gaps that have to be filled in on the fly to allow the intersections to complete, so easy for the developer to miss steps out.
Anyway, as a workaround split the object into the cylindrical “hopper” and the rectangular “brick” and untrim the surfaces where they were joined, then cap the results so you are making two solid pieces that you could boolean union to get the original object back.
Then offset each piece separately, before unioning the offset solids. That will give you a clean offset of the original.
Regards
Jeremy
Hello- one thing I noticed is the .001 tolerance is a bit loose when you have microscopic edges like this
Explode and RebuildEdges > Join results in naked edges in that area as well. I’d model tiny things at a tiny tolerance. That said, that area looks like trouble - if it is built at tighter tol;erance it looks like this
Which does offset cleanly there, even with sharp corners - but I’d use round corners anyway - it is more reliable and is a true offset, which sharp corners is not.
-Pascal
