<p>Yes the Z offset needs to be redone each time a nozzle is removed even if you re install the same size.</p>
<p>Another thing to verify is to ensure the slicer is actually set with a 0.4mm nozzle</p>

CC BY-SA 4.0
2023-08-03T22:55:08.923Z
2023-08-09T00:02:15.010Z
2023-08-09T00:02:15.010Z
kolergy
<p>After replacing the nozzle on my Creatbot F430 printer, I auto-leveled the bed and initiated a test print - a simple square with a 2 mm thickness. However, I observed that the thickness of the printed model is inconsistent, varying between 1.5 mm and 1.7 mm. I'm wondering the Z-Offset is affecting this, or I shouldn't really worry about 0.3 mm / 0.5 mm difference.</p>
<p>Nozzle Size is 0.4 mm</p>
<p><a href="https://i.sstatic.net/nYktJ.jpg" rel="nofollow noreferrer" title="Printer Setting"><img src="https://i.sstatic.net/nYktJ.jpg" alt="Printer Setting" title="Printer Setting" /></a></p>

<z-axis><nozzle><simplify3d>
The thickness of my model is not always accurate. How do I solve this?
S_D
# The thickness of my model is not always accurate. How do I solve this?

(Asked by: username_0 on 2023-08-02)

After replacing the nozzle on my Creatbot F430 printer, I auto-leveled the bed and initiated a test print - a simple square with a 2 mm thickness. However, I observed that the thickness of the printed model is inconsistent, varying between 1.5 mm and 1.7 mm. I'm wondering the Z-Offset is affecting this, or I shouldn't really worry about 0.3 mm / 0.5 mm difference.

Nozzle Size is 0.4 mm

[![Printer Setting](https://i.sstatic.net/nYktJ.jpg "Printer Setting")](https://i.sstatic.net/nYktJ.jpg "Printer Setting")

**Tags:** z-axis, nozzle, simplify3d

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## 1 answers

### Answer by username_1 on 2023-08-03. Score: 1 | Accepted answer

Yes the Z offset needs to be redone each time a nozzle is removed even if you re install the same size.

Another thing to verify is to ensure the slicer is actually set with a 0.4mm nozzle


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