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I have been trying to replace my RAMPS board with a RUMBA board so I could expand my extruding capacity and am having trouble porting my auto bed leveling into my RAMPS board.
I am using a servo with a switch on it but can't find any place on the RUMBA for a servo. I know the switch goes on the Z axis end stop point.
Could someone tell me how to wire the servo and where I can learn about the changes I will need to make to the code?
While it isn't the most put together thread, you can find most of the info you need here.
Basically, you need to use the EXP3 headers to hook up the servo. A change in the Pins.h file is needed. I attached the most current firmware i am using. You will need to adjust your feedrates for extrusion as I am using the ittybitty single extruder. Also, you will need to change the thermistor tables as I am using an E3dv6 hotend. If you can navigate the firmware you should be fine using the attached stuff once you make changes.