Now I know you can do this on a Melzi, but is it possible to add a second ramps (1.4) to add extruders?

The following post is mainly conjecture:

From what I can tell, the Master/Slave melzi configuration works by connecting the TX, RX, SCL, and Reset lines between the two boards and communicating over custom firmware. It shouldn't be too hard to do the same thing with two Arduino's, although I'm not sure what the SCL line is for (my understanding is that SCL is for I2C). From there, its just a matter of firmware. I'm not sure if the RepRapPro Marlin will run on a RAMPS board.

here's a thread with a guy connecting 2 arduinos to connect lcd touchscreen.

so i guess the answer is also yes for additional extruders.

Edited 1 time(s). Last edit at 05/05/2013 12:38PM by f3rDz.