Currently the DifferentialDrive class says that wheel_diam and wheel_track default to a measurement in inches, 6 and 13.5 respectively, but this is incorrect. Both of those measurements should be in centimeters, and I also believe the 13.5 cm track width is outdated and incorrect (I'm measuring 15.5 cm on my bot). This will be fixed in the next release.
Currently the DifferentialDrive class says that wheel_diam and wheel_track default to a measurement in inches, 6 and 13.5 respectively, but this is incorrect. Both of those measurements should be in centimeters, and I also believe the 13.5 cm track width is outdated and incorrect (I'm measuring 15.5 cm on my bot). This will be fixed in the next release.