I am using the freecad 0.18-pre appimage on elementary juno (ubuntu 18.04) and this worked for me:
edit the .desktop file:
.local/share/applications/appimagekit_2886566de966dc3a1acbab1d9f01752f-freecad-daily.desktop
and change the Exec line to be
Exec=sh -c "LIBGL_DRI3_DISABLE=true /home/username/Applications/FreeCAD_0.18.15780.glibc2.17-x86_64.AppImage"
I am using the freecad 0.18-pre appimage on elementary juno (ubuntu 18.04) and this worked for me:
edit the .desktop file:
.local/ share/applicati ons/appimagekit _2886566de966dc 3a1acbab1d9f017 52f-freecad- daily.desktop
and change the Exec line to be
Exec=sh -c "LIBGL_ DRI3_DISABLE= true /home/username/ Applications/ FreeCAD_ 0.18.15780. glibc2. 17-x86_ 64.AppImage"