You will receive the best tips, guidelines, and assistance on the Google + community’s sites for both open builds and TinyG. Specifically for running the TinyG on Chilipeppr, or even another gcode runner, you will get the best/quickest help there. The best contact is John Laurer, who runs it. I use TinyG and it works well. You don’t necessarily need an external driver for the controller unless you need more than 2.5A of power per motor. I run Nema 23s and it has been sufficient.
