This was posted in the RepRap forums, and it looks very promising to manage fine details that might be obfuscated or otherwise cause a surface imperfection.
http://forums.reprap.org/read.php?1,374302
Fine tune your model in a GCode Editor before printing
Now you can edit your “Slicers generated” 3D GCode data intuitively just like normal vertices in your CAD software. Try it NOW! Ver 0.0.1 (BETA) and enjoy the day…
http://www.soasystem.com/download/r3dgedit/
RapR3D Visual GCode Editor - edit GCode just like a CAD file
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