XYZ Cal Fail  

Re: XYZ Cal Fail

check that your pinda is still working properly in every position of the x-carriage.
might be that the cable has gone defective (due to the continuous movement) and you need to repair it.
check the probe with the calibration-> "Show end stops" menue (z should alter when you put some metal underneath the probe).
check this at every position of the x-carriage (you can disable steppers first, and move the carriage by hand).

if everything is still ok, it might be that the probe lost sensitivity, due to a tiny change (increase) in it's supply voltage. if so, and you know your electronics, i can suggest to test this little circuit.

Re: XYZ Cal Fail

While the printer can't do the XYZ calibration, it can do the Z calibration successfully. If the sensor lost sensitivity, I want a new free replacement probe.

Re: XYZ Cal Fail

The hotend does not crash into the bed, so it seems to sense the bed at least.

I don't know why it won't find the fourth XYZ point

Re: XYZ Cal Fail

While the printer can't do the XYZ calibration, it can do the Z calibration successfully. If the sensor lost sensitivity, I want a new free replacement probe.

it's not sure that you can blame the probe for it. tiny changes in the supply voltage of the +5V provided by the rambo board and even a few degrees temperature change (we're going to get sommer soon) have an effect at the sensitivity of the probe.
and as i already mentioned in a few postings: not every pinda probe is the same, some of them are quite sensitive, others are nearly deaf (short sighted).

Re: XYZ Cal Fail

My probe isn't going to get any closer to the bed safely. The sensor is absolutely above the point; why can't it see it?

Re: XYZ Cal Fail

Well, I wrote a letter to support. Let's see what they say 🙂