arthurwolf/Smoothie — pull request #235 by TopherMan (2013-09-22 20:09:11+00:00)
Title: Feature/extruder disable

M17 and M18 now enable/disable the extruder, respectively. Additionally, if "M18 E" or "M84 E" is received, only the extruder stepper disables. (Useful for filament changes mid-print.)