<p>STL files are &quot;unitless&quot;. Just like maths it is just numbers and most slicers simply assume you mean millimeters.</p>
<p>if the objects you download are hundreds of meters big, maybe they are produced or exported in micrometers? A millimeter is 1000 micrometer, so scaling the object by 0,1% will make it the correct size, assuming that the micrometer unit thing is the case. Just play around with some scales.
some conversion scales:</p>
<ul>
<li>micrometer to millimeter: 0,1%</li>
<li>millimeter to micrometer: 100000%</li>
<li>millimeter to inch: 3,937%</li>
<li>inch to millimeter: 2540%</li>
</ul>

CC BY-SA 4.0
2024-05-07T15:45:50.207Z
This. Make your model 2000 units instead of 2 units, and it should work.
Davo
CC BY-SA 4.0
2024-05-07T08:54:44.363Z
2024-05-07T08:54:44.363Z
Hacky
<p>I created simple cube in Blender with Dimensions 2mx2mx2m and exported it as *.stl.</p>
<p><a href="https://i.sstatic.net/JEUoNJ2C.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/JEUoNJ2C.png" alt="Blender" /></a></p>
<p>When I open it in BambuStudio I get sizes of element as 2mmx2mmx2mm.</p>
<p><a href="https://i.sstatic.net/gwToddeI.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/gwToddeI.png" alt="Bambustudio" /></a></p>
<p>Same strange thing happens with stls I downloaded from the internet, they also show hundreds of meters for object with size 10cm</p>
<p>How to properly set settings to create precise objects?</p>

<blender><bambu><bambu-lab-p1p>
How to properly measure sizes of models in Blender?
Online Zakaz
# How to properly measure sizes of models in Blender?

(Asked by: username_0 on 2024-05-06)

I created simple cube in Blender with Dimensions 2mx2mx2m and exported it as \*.stl.

[![Blender](https://i.sstatic.net/JEUoNJ2C.png)](https://i.sstatic.net/JEUoNJ2C.png)

When I open it in BambuStudio I get sizes of element as 2mmx2mmx2mm.

[![Bambustudio](https://i.sstatic.net/gwToddeI.png)](https://i.sstatic.net/gwToddeI.png)

Same strange thing happens with stls I downloaded from the internet, they also show hundreds of meters for object with size 10cm

How to properly set settings to create precise objects?

**Tags:** blender, bambu, bambu-lab-p1p

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## 1 answers

### Answer by username_1 on 2024-05-07. Score: 1

STL files are "unitless". Just like maths it is just numbers and most slicers simply assume you mean millimeters.

if the objects you download are hundreds of meters big, maybe they are produced or exported in micrometers? A millimeter is 1000 micrometer, so scaling the object by 0,1% will make it the correct size, assuming that the micrometer unit thing is the case. Just play around with some scales.
some conversion scales:

* micrometer to millimeter: 0,1%
* millimeter to micrometer: 100000%
* millimeter to inch: 3,937%
* inch to millimeter: 2540%

> **Comments:**
> **username_2**: This. Make your model 2000 units instead of 2 units, and it should work.  

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