Have you seen the Skeinforce tool chain they use with the reprap.
http://reprap.org/bin/view/Main/Skeinforge
It is written in python and you might be able to patch together some elements of it to just get your drilling data out of it.
Have you seen the Skeinforce tool chain they use with the reprap.
http://reprap.org/bin/view/Main/Skeinforge
It is written in python and you might be able to patch together some elements of it to just get your drilling data out of it.