I have finally made some progress on this project. I rewired the X, Y and Z axis to use the 7i76e double ended connections to the Step/Dir on the KL5056. That fixed the no motion problem. Somehow I had switched the connections between my probe and the Y-axis limit switch. I got that fixed.
Now I can fire up the controller and myPCBMill. I can home all 3 axis and all axis jog in the correct directions. Occasionally I get error messages but I haven’t got them consistently enough to tell what the problem is. So now I need to work with it to see if the timing for the threads are doable. I am running RPi4-4gb with Buster Arm64 with Linuxcnc 2.8.2 with 5.10.74-rt54-v8+ SMP PREEMPT_RT kernel. I guess I can build Linuxcnc-2.8.4 for it. Alan _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users