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

<p>For example, this white round blob should've been a straight up cylindrical shape, but it leans to the right for some reason.
<a href="https://i.sstatic.net/he94r.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/he94r.jpg" alt="white blob instead of correct cylinder"></a></p>

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

<p>When I was printing this model, I prepared it with Cura 3.2.1 slicer.</p>

<p>What could be causing this problem? How it could be fixed?</p>

<p><strong>Update 1:</strong> 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.</p>

<p><a href="https://i.sstatic.net/LKRTR.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/LKRTR.jpg" alt="test print"></a>
<a href="https://i.sstatic.net/tWQIH.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/tWQIH.jpg" alt="closer look"></a></p>

<p><strong>Update 2:</strong> Result after setting <code>print speed</code> to <code>10 mm/s</code> and <code>travel speed</code> to <code>50 mm/s</code> (same model, same ABS):
<a href="https://i.sstatic.net/311oS.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/311oS.jpg" alt="Low speed =&gt; no shifting"></a>
Even such slight change to <code>print speed</code> as <code>15 mm/s</code> still produces layer shifting.</p>

CC BY-SA 4.0
2019-12-24T13:50:17.067Z
Hi and welcome to 3D Printing.SE! Are the belts tight?
0scar
CC BY-SA 4.0
2019-12-24T23:51:24.313Z
@0scar Hi! Thank you. Don't know if the belts are tight enough but not overly. How to know if they are?
tsilvs
CC BY-SA 4.0
2019-12-27T15:12:07.127Z
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
CC BY-SA 4.0
2020-01-07T14:44:11.260Z
@NeronLeVelu I will investigate this possibility. Thanks.
tsilvs
CC BY-SA 4.0
2020-01-26T16:02:22.793Z
@NeronLeVelu tried lowering print speed from 50 to 25 mm/s in Ultimaker Cura 4.4.1. Didn't help.
tsilvs
CC BY-SA 4.0
2020-01-28T20:49:46.283Z
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
CC BY-SA 4.0
2020-02-01T22:49:05.547Z
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
CC BY-SA 4.0
2020-02-02T16:22:45.513Z
@Trish will try it, but all the belts seem to be tight enough.
tsilvs
<troubleshooting><calibration><anycubic-i3-mega><x-axis><layer-shifting>
Anycubic i3 Mega layer shifting
tsilvs
# Anycubic i3 Mega layer shifting

(Asked by: username_0 on 2019-12-24)

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.
[![white blob instead of correct cylinder](https://i.sstatic.net/he94r.jpg)](https://i.sstatic.net/he94r.jpg)

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.

[![test print](https://i.sstatic.net/LKRTR.jpg)](https://i.sstatic.net/LKRTR.jpg)
[![closer look](https://i.sstatic.net/tWQIH.jpg)](https://i.sstatic.net/tWQIH.jpg)

**Update 2:** Result after setting `print speed` to `10 mm/s` and `travel speed` to `50 mm/s` (same model, same ABS):
[![Low speed => no shifting](https://i.sstatic.net/311oS.jpg)](https://i.sstatic.net/311oS.jpg)
Even such slight change to `print speed` as `15 mm/s` still produces layer shifting.

**Tags:** troubleshooting, calibration, anycubic-i3-mega, x-axis, layer-shifting

> **Comments:**
> **username_1**: Hi and welcome to 3D Printing.SE! Are the belts tight?  
> **username_0**: @username_1 Hi! Thank you. Don't know if the belts are tight enough but not overly. How to know if they are?  
> **username_2**: 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).  
> **username_0**: @username_2 I will investigate this possibility. Thanks.  
> **username_0**: @username_2 tried lowering print speed from 50 to 25 mm/s in Ultimaker Cura 4.4.1. Didn't help.  
> **username_3**: 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.  
> **username_4**: 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?  
> **username_0**: @username_4 will try it, but all the belts seem to be tight enough.  

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## 0 answers

