Code: Select all
OS: Arch Linux (GNOME/gnome)
Word size of FreeCAD: 64-bit
Version: 0.21.0.33341 (Git)
Build type: None
Branch: master
Hash: 8a3c8258dfe92bdfe5efcfea43b0c1e2a224543c
Python 3.11.3, Qt 5.15.9, Coin 4.0.1, Vtk 9.2.6, OCC 7.6.3
Locale: English/United States (en_US)
Did I find this issue when searching the issue tracker? No.
I created a model of a bass guitar fretboard using OpenSCAD. I plan to cut it out on my MPCNC running Marlin.
Running a 3D Surface operation on the fretboard face produces GCODE that has defects (a strange valley running diagonally across the fretboard at fret 4. They're not extremely obvious when looking at the preview in FreeCAD, but with a 3rd party online viewer (https://ncviewer.com/) they stand out a bit more (See the attached image). I ran this GCODE against some test pieces of wood twice and the defects are clearly visible in the cut piece.
I've replicated this on a separate machine with a clean install of FreeCAD (latest weekly image).
Any help much appreciated.