Well, this is an odd one. My Y-axis won’t move backwards (towards the endstop). It seems to always think the endstop is triggered. I’ve tried disconnecting the physical endstop, using the X-axis endstop (briefly) in place of the Y endstop, reloading the firmware… nothing seems to work.
Is my RAMBo dead? All the other axes work fine, it’s just the Y axis that refuses.
Maybe I’ll try using the Y-max pins instead (for a Y-min).