I want to upgrade my Mendel90 Sturdy to a Rumba board (currently using a Melzi), so that I can run multiple extruders and hotends like the Kraken or Chimera. Does anyone have a Marlin sketch for a Mendel90/Rumba they would be willing to share with me? Or other programming, if not Marlin? I also have the SainSmart controller that goes with the Rumba, by the way.
Anybody? Nobody? My Melzi is programmed using NopHead's original Marlin sketch, with only minor tweaks. I have no idea where to begin as far as programming my Rumba from scratch, but I want to upgrade my Mendel90 to run multiple extruders.