Thick surface: current offset value leads to a local degeneration on a surface
Hi. I couldn't find the answer here. To cut it short. I get the error everytime I try to make thick surface of the surface in attachment (Multi-section between 3 splines, see attachment below). If I follow the instruction it does work, but I need the thickness to be 20 mm. Offset does not work neither
It seems there is a problem with the highlighted part of the surface. Anybody knows how to fix this?
3 Answers
This often happens when the offset distance is greater than the radius of curvature at one or more points on the surface.
The most common cause is a "bumpy" surface that was made from "bumpy" curves.
Based on the attached pictures, your surface looks good (nice, uniform shading).
Try to reverse the direction of the offset. If that works, the surface is good (not "bumpy"), and the problem is that the surface has too much curvature for the offset. You need to use a different method to get that inside surface.
If the reverse direction gives you the same error, the surface has a problem(s). I would start my doing some surface analysis on the surface, as well as some porcupine analysis on the splines.
My guess is there are too many points defining the splines, so the easy fix is to remove some of the points from the splines.
Would it be possible to 'simplify' the surface at some degree of deviation?
As Jack mentioned, min curvature values are often the culprit.
And/or other times, surface complexity.
can you thicken the surface in two directions at once? try 10mm one way, with 10mm in the other way at the same time. You'll get 20 mm, and maybe it will help if the issue is a curvature issue.
