Then came the one no machinist wants to see:
“The axis tried to move where the glass didn’t see.” heidenhain error codes
The Z-axis thought it was at +12.000 mm. The dial indicator said -0.400. Then came the one no machinist wants to
That’s the machine going blind. The glass scale — etched with micron-perfect graduations — had fogged, or cracked, or simply given up. or simply given up.