<p>This could be because your belts are either old or not tight enough. Try adjust or replacing the belts and try again. </p>

CC BY-SA 3.0
2017-09-14T10:55:51.303Z
2017-09-14T10:55:51.303Z
Granny
<p>Possible causes for the printer not printing correct dimensions:</p>

<ul>
<li>Incorrect number of steps/mm in firmware settings</li>
<li>Belts are not tight enough</li>
<li>Pulley slips on the shaft</li>
</ul>

<p>Looking at the picture, I would go for the first case, because distortion looks regular. Try checking microstep settings on your board, and settings in the firmware.</p>

CC BY-SA 3.0
2017-09-14T16:00:07.073Z
yes did it with first case although against the calculation which I did. changing microstepping work out
Dream Developer
CC BY-SA 3.0
2017-09-14T12:03:12.240Z
2017-09-14T12:03:12.240Z
Mikhail Z
<p>I am having issue with my new printer it is not printing circles correctly although I have change firmware and stepping of motor
advise if anyone know the solution.
<a href="https://i.sstatic.net/7egRT.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/7egRT.jpg" alt="enter image description here"></a></p>

CC BY-SA 3.0
2017-09-13T15:33:32.327Z
Can you give a little more information?  like # of steps per motor, a photo of your printer, etc.
Fernando Baltazar
CC BY-SA 3.0
2017-09-13T15:59:01.690Z
X axis pulley is 20 teeth with the calculation it's 80 step y axis is 16 teeth pulley so it's 100 step
Dream Developer
<print-quality><marlin><desktop-printer><diy-3d-printer>
3d printer not printing circles correctly
Dream Developer
# 3d printer not printing circles correctly

(Asked by: username_0 on 2017-09-13)

I am having issue with my new printer it is not printing circles correctly although I have change firmware and stepping of motor
advise if anyone know the solution.
[![enter image description here](https://i.sstatic.net/7egRT.jpg)](https://i.sstatic.net/7egRT.jpg)

**Tags:** print-quality, marlin, desktop-printer, diy-3d-printer

> **Comments:**
> **username_1**: Can you give a little more information?  like # of steps per motor, a photo of your printer, etc.  
> **username_0**: X axis pulley is 20 teeth with the calculation it's 80 step y axis is 16 teeth pulley so it's 100 step  

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## 2 answers

### Answer by username_3 on 2017-09-14. Score: 8 | Accepted answer

Possible causes for the printer not printing correct dimensions:

* Incorrect number of steps/mm in firmware settings
* Belts are not tight enough
* Pulley slips on the shaft

Looking at the picture, I would go for the first case, because distortion looks regular. Try checking microstep settings on your board, and settings in the firmware.

> **Comments:**
> **username_0**: yes did it with first case although against the calculation which I did. changing microstepping work out  

---

### Answer by username_2 on 2017-09-14. Score: 1

This could be because your belts are either old or not tight enough. Try adjust or replacing the belts and try again.


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