# What could be causing this?

**URL:** <https://forum.sovol3d.com/t/what-could-be-causing-this/6459>\
**Category:** Sovol SV06 Fully Open Source 3D Printer\
**Tags:** advice, leveling\
**Created:** [January 3, 2025, 10:30pm UTC](https://forum.sovol3d.com/t/what-could-be-causing-this/6459 "2025-01-03T22:30:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Darwulf](https://avatars.discourse-cdn.com/v4/letter/d/c89c15/32.png) [@Darwulf](https://forum.sovol3d.com/u/Darwulf)\
**Post date:** [January 3, 2025, 10:30pm UTC](https://forum.sovol3d.com/t/what-could-be-causing-this/6459/1 "2025-01-03T22:30:05Z")

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I have ran into an issue with every print starting fine then it begins to shift the print. The adhesion is good and it is firmly stuck to the heatbed properly. However, after 5-10 or more passes of the print head it seems to shift in the same direction (towards the rear). These are a test of Benchy that I ran because it has come out before perfect.

 ![IMG_2184](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/f/f396be6e971855429692429679a8c2deafbf18c7.jpeg)  
 ![IMG_2185](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/8/8becf15d45f79ebe0d0d8a1e797ad17af6b899f0.jpeg)  
 ![IMG_2186](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/b/b6891f3e8c2fc507bb0c1ba43fc3333daef295c4.jpeg)

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**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\
**Post date:** [January 4, 2025, 3:50am UTC](https://forum.sovol3d.com/t/what-could-be-causing-this/6459/2 "2025-01-04T03:50:11Z")

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> [@Darwulf](#):
>
> print head it seems to shift in the same direction (towards the rear)

This is usually caused by a loose ‘Y’ belt. Check the tension by turning the knob.

[![](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/0/0b48ab5250de7fc0fea79ef51add81fac07f12b4.jpeg "How to adjust the XY axis timing belt | Sovol SV06") ](https://www.youtube.com/watch?v=TJoZDrJJTqk)

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**Author:** ![Darwulf](https://avatars.discourse-cdn.com/v4/letter/d/c89c15/32.png) [@Darwulf](https://forum.sovol3d.com/u/Darwulf)\
**Post date:** [January 4, 2025, 12:05pm UTC](https://forum.sovol3d.com/t/what-could-be-causing-this/6459/3 "2025-01-04T12:05:04Z")

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Thanks for the advice, I will try there and post the results.