Instructions
To use this, you'll need a set of Gen4 electronics and the V2.7 firmware (which is coming soon, but you can get it now by building from source). After you generate a gcode file for your model, run it through the unicorn_progress_meter.py script, which will insert servo control messages to update the position of the servo arm as the build progresses.
Use your most 1337 papercraft skills to make a pretty gauge and indicator arm, and you're all set!
The latest version of the script can be found here:
github.com/makerbot/Makerbot/tree/master/Unicorn/unicorn_progress_meter



