I recently wrote this python program for RC to help 1323 simplify their CNC machine programming, by allowing students to program holes and bores quickly and at the machine.
The programs allows you to quickly generate standalone g-code for any of holes, by helical boring with an endmill. The program itself is graphical interface, allowing parameters such as tool diameter, stepovers, speeds, etc. to be entered rapidly and easily.
I've been testing it out over the past week, and it seems to be working well, so I'm ready to pass it on to you guys. If you write all your g-code programs by hand, this can definitely save you time, especially on gearbox plates. It also can be very useful for programming simple parts rather than spend excessive time in a CAM program.
Feel free to use/edit at your lesisure, and let me know of any errors/suggested changes.
The program runs in Python 2.7.3 which can be downloaded here
http://www.python.org/getit/
and runs on Windows, Mac, and Linux.
The program can be downloaded in the attachments, or here
https://docs.google.com/open?id=0Bxn...UdKUXp3ZWktb1k
Screenshot and graphical representation of programmed toolpath below.
The code won't compile if you violate the rules of the programming language...but English is more robust, it seems to work pretty well no matter how we engineering nerds mangle it! - MrForbes [more] 
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