I've just upgraded from Marlin 1.1.0-RC3 to 1.1.8 and I'm getting some sort of timeout occuring. I home all axis and then after approx 2 mins the motors switch off and the display shows flashing '?' for the axis positions ? I can rehome all axis and the same thing happens again after 2 mins ?
I've also tried V 1.1.0-1 and this behaves in the same way but V1.1.0-RC3 is fine ?
Is there a timeout running that I'm not aware of that switches off the motors after a period of inactivity ? I havn't tried running a print yet as I still need to make some finishing touches to the extruders (Flex3drive).
I'm running RAMPS 1.3 with 2 extruders, dual Z steppers and dual Z endstops with an extra stepper driver attached to the RAMPS board. Also attached is a REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER.