<p>Layer height should be max. 3/4 of the nozzle width, so you should print at max. 0.15 mm layer height with a 0.2 mm nozzle. So the problem is that you are using a too large of a layer height (0.2 mm). If you push more flow it appears to work, but, for the wrong reasons.</p>
<p>With a layer height as large as the nozzle width, you extrude cylinders/tubes with much space between the perimeters, by increasing the flow percentage you somewhat flatten the tubes, but it is better to lower the layer height.</p>

CC BY-SA 4.0
2023-04-05T17:29:30.583Z
Thank you Oscar! Very informative
Kevin K
CC BY-SA 4.0
2023-04-02T14:33:44.383Z
2023-04-02T22:31:36.467Z
2023-04-02T22:31:36.467Z
0scar
<p>Just started 3D printing. Switched from a 0.4 mm nozzle to a 0.2 mm nozzle and am printing my first object. It has this pattern/inconsistency. Thinking it might be temperature variation but not sure. Anyone know what it is?</p>
<p><a href="https://i.sstatic.net/dqsme.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/dqsme.jpg" alt="Image of a 3D printed comb with usual pattern" /></a></p>
<p>I changed the speed to 60 % cause not enough was coming out at a time, it improved the results. Layer height 0.2 mm but it may be a little off from because of the leveling. I increased flow 15 % just now and seems to be printing better with more adhesion.</p>

CC BY-SA 4.0
2023-04-01T09:54:02.673Z
Welcome to 3DPrinting.SE! Did you change the speed? Your print shows signs of underextrusion. What is the layer height?
0scar
CC BY-SA 4.0
2023-04-01T10:34:31.513Z
Yes I changed the speed to 60% cause not enough was coming out at a time, it improved the results. Layer height 0.2 but it may be a little off from because of the leveling. I increased flow 15% just now and seems to be printing better with more adhesion. So underextrusion was the problem I agree. Thx for the timely response!
Kevin K
CC BY-SA 4.0
2023-04-01T10:35:27.610Z
How does layer height relate to extrusion?
Kevin K
CC BY-SA 4.0
2023-04-01T12:16:19.347Z
You extrude volume, so layer height and print width make up the volume you extrude.
0scar
<print-quality>
Why does my print have this unusual pattern?
Kevin K
# Why does my print have this unusual pattern?

(Asked by: username_0 on 2023-04-01)

Just started 3D printing. Switched from a 0.4 mm nozzle to a 0.2 mm nozzle and am printing my first object. It has this pattern/inconsistency. Thinking it might be temperature variation but not sure. Anyone know what it is?

[![Image of a 3D printed comb with usual pattern](https://i.sstatic.net/dqsme.jpg)](https://i.sstatic.net/dqsme.jpg)

I changed the speed to 60 % cause not enough was coming out at a time, it improved the results. Layer height 0.2 mm but it may be a little off from because of the leveling. I increased flow 15 % just now and seems to be printing better with more adhesion.

**Tags:** print-quality
> **Comments:**
> **username_1**: Welcome to 3DPrinting.SE! Did you change the speed? Your print shows signs of underextrusion. What is the layer height?  
> **username_0**: Yes I changed the speed to 60% cause not enough was coming out at a time, it improved the results. Layer height 0.2 but it may be a little off from because of the leveling. I increased flow 15% just now and seems to be printing better with more adhesion. So underextrusion was the problem I agree. Thx for the timely response!  
> **username_0**: How does layer height relate to extrusion?  
> **username_1**: You extrude volume, so layer height and print width make up the volume you extrude.  

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## 1 answers

### Answer by username_1 on 2023-04-02. Score: 4 | Accepted answer

Layer height should be max. 3/4 of the nozzle width, so you should print at max. 0.15 mm layer height with a 0.2 mm nozzle. So the problem is that you are using a too large of a layer height (0.2 mm). If you push more flow it appears to work, but, for the wrong reasons.

With a layer height as large as the nozzle width, you extrude cylinders/tubes with much space between the perimeters, by increasing the flow percentage you somewhat flatten the tubes, but it is better to lower the layer height.

> **Comments:**
> **username_0**: Thank you Oscar! Very informative  

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