Please tell me that my problem is caused by a loose belt on my X-axis.

I started a sort of rectangular-based print which had its centre at X = 100, Y = 100. The printer laid down good first and second layers, with everything where it should have been, but when the printer moved up for layer 3, the centre of the print moved to about X = 75, Y = 75. The printer laid down two or three layers very nicely until it moved up for another layer, then the centre went to X = 50, Y = 50 and started printing OK.

Between these jumps to the left, the printer moved in X and Y correctly so that the shape created was as desired.

This is the G-code file for the print: Cable Carrier.gcode

The Y- axis movement is not affected, nor is the Z -axis.

Thanks,

Old Man Emu