<p>I found a solution to this layer shifting. Even though the belt was too loose, I managed to use a rubber band to tighten the belt slightly. Now to prints go off without a hitch. Thanks for your help.</p>

CC BY-SA 4.0
2023-01-20T08:24:35.077Z
Glad you solved the problem! But, a rubber band sounds like a temporary fix, you might want to look into a [belt tensioner](https://a.aliexpress.com/_Ev0fQ57).
0scar
CC BY-SA 4.0
2023-01-22T02:14:42.593Z
The printer came with a belt tensioner, however even with the knob at the tightest, there is still a lot of slack and the belt skips steps. When printing PLA, the bed (60) won't melt the rubber band, right? hanks for your suggestion.
Lithanium
CC BY-SA 4.0
2023-01-22T07:36:43.137Z
Did you crimp on one of the brass end clamps yourself or was the belt completely assembled. I think the belt is just a tad too long. Rubber bands have a short (or at least a way shorter) life expectancy than the belt.
0scar
CC BY-SA 4.0
2023-01-23T04:10:19.067Z
All the belt tensioners were already pre-assembled. Maybe Anycubic Support accidentally sent me a slightly longer belt, as if was fine before the belt snapped.
Lithanium
CC BY-SA 4.0
2023-01-23T14:05:22.397Z
Okay, clear! If I were you I'd shorten the belt using a new brass clamp or repurpose the existing one. But, what works for you you should use! Happy printing!
0scar
CC BY-SA 4.0
2023-01-20T06:15:09.743Z
2023-01-20T06:15:09.743Z
Lithanium
<p>I have recently purchased an Anycubic Kobra, and the first two prints worked out fine. On the third print, the Y-axis belt snapped, so I contacted Anycubic support and they gave me a replacement one. I did a few test owl prints, but there was major Y-axis shifting on the prints.</p>
<p><a href="https://i.sstatic.net/A3i4k.jpg" rel="nofollow noreferrer" title="Images of two failed owl prints"><img src="https://i.sstatic.net/A3i4k.jpg" alt="Images of two failed owl prints" title="Images of two failed owl prints" /></a></p>
<p>After I replaced the belt, I made sure that they were as tight as possible, but there was some slack, but I couldn't tighten them further. There is only shifting in the Y-axis, but it mostly only shifts in one direction (towards front).</p>
<p>What other reasons would cause a Y-axis shift like this? Is this due to incorrect belt replacement, as there was no shifting prior to the belt snap?</p>

<troubleshooting><layer-shifting>
Major Y-axis skipping (Anycubic Kobra)
Lithanium
# Major Y-axis skipping (Anycubic Kobra)

(Asked by: username_0 on 2023-01-17)

I have recently purchased an Anycubic Kobra, and the first two prints worked out fine. On the third print, the Y-axis belt snapped, so I contacted Anycubic support and they gave me a replacement one. I did a few test owl prints, but there was major Y-axis shifting on the prints.

[![Images of two failed owl prints](https://i.sstatic.net/A3i4k.jpg "Images of two failed owl prints")](https://i.sstatic.net/A3i4k.jpg "Images of two failed owl prints")

After I replaced the belt, I made sure that they were as tight as possible, but there was some slack, but I couldn't tighten them further. There is only shifting in the Y-axis, but it mostly only shifts in one direction (towards front).

What other reasons would cause a Y-axis shift like this? Is this due to incorrect belt replacement, as there was no shifting prior to the belt snap?

**Tags:** troubleshooting, layer-shifting

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## 1 answers

### Answer by username_0 on 2023-01-20. Score: 2 | Accepted answer

I found a solution to this layer shifting. Even though the belt was too loose, I managed to use a rubber band to tighten the belt slightly. Now to prints go off without a hitch. Thanks for your help.

> **Comments:**
> **username_1**: Glad you solved the problem! But, a rubber band sounds like a temporary fix, you might want to look into a [belt tensioner](https://a.aliexpress.com/_Ev0fQ57).  
> **username_0**: The printer came with a belt tensioner, however even with the knob at the tightest, there is still a lot of slack and the belt skips steps. When printing PLA, the bed (60) won't melt the rubber band, right? hanks for your suggestion.  
> **username_1**: Did you crimp on one of the brass end clamps yourself or was the belt completely assembled. I think the belt is just a tad too long. Rubber bands have a short (or at least a way shorter) life expectancy than the belt.  
> **username_0**: All the belt tensioners were already pre-assembled. Maybe Anycubic Support accidentally sent me a slightly longer belt, as if was fine before the belt snapped.  
> **username_1**: Okay, clear! If I were you I'd shorten the belt using a new brass clamp or repurpose the existing one. But, what works for you you should use! Happy printing!  

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