I'm building a kossel mini and for it i have used a smoothieboard. I've setted up the configuration file found on the github for the deltas, making some changes to the arm solutions. Then i tried to connect with pronterface and see if everything was okay. The endstops are responding as they should (from what i found on the endstop page) and the motors turn in the right direction, moving up and down. At least individually, the problem appears when i issue a g28 command, because they simply start humming, no movement at all. I've made a quick test and set two endstops active and the third disabled then i issued a g28 command, it humms again. However, if i trigger the endstop manually the motor moves down and then up and enables the endstop by itself. Even more strange, is that if i issue a g28 command with all carriages triggering the endstops , the mottors move down by 5mm and then up and stop when the endtstops are triggered.
Any help on this would be apreciated.
Thanks and sorry for the bad english.