Used eggduino on a Uno 3
Commented out the couple of eeprom lines that would not compile in the sketch.
In Inkscape eggbot.py file commented out the lines right below
# Try any devices which seem to have EBB boards attached
# for strComPort in eggbot_scan.findEiBotBoards():
# serialPort = self.testSerialPort( strComPort )
# if serialPort:
# self.svgSerialPort = strComPort
# return serialPort
Used A4988 pololu step drivers. Set up step drivers for 16 microstep(all 3 msi high). At12v I turned the amp pot all the way down and then back up to 100-125mA on each axis. That seems to be where everything runs smoothly with still plenty of power and dose not get hot.
I will post my custom "Sphere cups" that I made from ninjaflex.