We will drill into the bottom side. So the parameter for x axis mirroring [-x] is used.
./fpcconvert.sh -c examples/niveaDice/fpcconvert.conf -xr examples/niveaDice/niveaDice.fpc -fgcode -o examples/niveaDice/niveaDice.bot.dri.ngc -lbottom
Following text is returned:
setting config file to examples/niveaDice/fpcconvert.conf Warning: zero thickness for connection (4 -> 3), segment 1, net N000022 Warning: zero thickness for connection (2 -> 1), segment 1, net N000003 Warning: zero thickness for connection (3 -> 1), segment 1, net N000004 so library loaded, turbo GPC mode will be used
Warnings reported point to unconnected nets in the design, see figure Figure 2.3, “Project in FreePCB”. This is on purpose in this case.