## Anycubic i3 Mega layer shifting

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My Anycubic I3 Mega shifts every layer by a little distance making straight model lean to it's side by an angle.

For example, this white round blob should've been a straight up cylindrical shape, but it leans to the right for some reason.

Don't look at dirty table, it was clean at the start of printing.

When I was printing this model, I prepared it with Cura 3.2.1 slicer.

What could be causing this problem? How it could be fixed?

Update 1: I've tried lowering print speed from 50 to 25 mm/s in Ultimaker Cura 4.4.1. It didn't help. After another test print it seems like it's an X axis problem.

Update 2: Result after setting print speed to 10 mm/s and travel speed to 50 mm/s (same model, same ABS): Even such slight change to print speed as 15 mm/s still produces layer shifting.

1Hi and welcome to 3D Printing.SE! Are the belts tight? – 0scar – 2019-12-24T13:50:17.067

@0scar Hi! Thank you. Don't know if the belts are tight enough but not overly. How to know if they are? – VELFR – 2019-12-24T23:51:24.313

Do you have the same problem with a generic gcode file from Anycubic or with G-code produce by another slicer than the one you used? On mine, I use the Slic3r version by prusa (called PrusaSlicer as I had a Prusa printer before) and I just change (reduce) the speed (and some minor details like bed size) from Prusa i3 profile and it works correctly (no displacement between layer). – NeronLeVelu – 2019-12-27T15:12:07.127

@NeronLeVelu I will investigate this possibility. Thanks. – VELFR – 2020-01-07T14:44:11.260

@NeronLeVelu tried lowering print speed from 50 to 25 mm/s in Ultimaker Cura 4.4.1. Didn't help. – VELFR – 2020-01-26T16:02:22.793

I've had seen similar issues where the gear on a stepper motor was loose and causing layer shifting but only when travelling (due to the acceleration between print speed and travel speed). I spent a long time tweaking belts before it occurred to me to check the gears. – p.s.w.g – 2020-01-28T20:49:46.283

The massive reduction for good results hints that something with the carriage mounting seems to be defect. Can you tighten the belt on the Bed? – Trish – 2020-02-01T22:49:05.547

@Trish will try it, but all the belts seem to be tight enough. – VELFR – 2020-02-02T16:22:45.513