4 Travel command rejected, motor output stage not ready.

[[Ri...]]

What are some reasons for this error?

Micura Calypso v2017 6.4.16

Please sign in to view this quote.

I'm guessing air might be one, but in the Status Window I do not see anything about "Drives Off".

I am seeing this quite often, especially after a calibration (no disrespect meant).

One other thing I have noticed on the same CMM, is the control box locks very quickly. You can hardly get time between moving the CMM manually and creating a feature and its locked again.

[[Da...]]

I have seen on my contura and spectrum. It can be just a bit of dust or something on the bearing surfaces, or you could be having a drive going out.