Are you trying to adjust the spindle relative to the z carriage here, or the carriage relative to the x rails? Is it possible that either one of these could be at fault? Some pictures to illustrate where the adjustment should be made would be very helpful.
I noticed that in picture 1, on the X plate front, the 2 screw holes that are used to mount the limit switch are to the left of center (as views from the front, i.e wih counter bores). On mine they are to the right. This caused me to doubt if I had got something wrong.
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Sorry Robert. I made a mistake. I’d delete my comment to avoid confusing others but it wouldn’t let me.
I noticed that in picture 1, on the X plate front, the 2 screw holes that are used to mount the limit switch are to the left of center (as views from the front, i.e wih counter bores). On mine they are to the right. This caused me to doubt if I had got something wrong.