One can get inward thickening by offsetting a surface with a negative value.
The problem is that if there is a thin part, instead of just filling in the offset, Freecad create protruding stuff outside the original surface (look at the tail of my tadpole). I do understand that this behavior is the exact translation of « thicken my stuff » but this is not what I want, and I guess what would ask most of the users in a similar situation. Is there a way to get rid of this unwanted part of the volume ?
OS: Debian GNU/Linux 8.7 (jessie)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.9766 (Git)
Build type: Unknown
Python version: 2.7.9
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.0.0
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