I have been reading through the other troubleshooting tips and have t seen a solution for this.
I have my x-carve fully assembled and yesterday everything was perfect except for the limit switches. In the process of checking for continuity of the limit switch wires at the gshield connection, the spindle suddenly came on. Now it won’t go off. I have rebooted the PC, Power Supply, cycled the switch between On, Off, Logic, and even pressed the reset button on the gshield. The only way to turn off the spindle is to turn off the power supply.
I cold almost live with that until I get it figured out but it makes it very difficult to set the Z to zero!
After initial completion of the build, I used the machine setup feature in easel and the spindle control worked as it should. I tried it again today and it will not turn off the spindle either. After waiting all this time to get this marvel it just became very anti climatic.