Looks like this has a great potential for creating better prints faster and making the machine quieter. I have a Makerfarm i3v 10" with a Rambo board and have started going thru the configuration file. The digipot settings are the 1st setting I was not sure how to set.
You can read about what it does here.
https://github.com/KevinOConnor/klipper
There is a 7 page discussion thread about it here.
http://forums.reprap.org/read.php?147,667655,page=1
