# Convert .stl file into .bmp image set

**URL:** <https://discourse.slicer.org/t/convert-stl-file-into-bmp-image-set/11149>\
**Category:** Support\
**Created:** [April 16, 2020, 1:46pm UTC](https://discourse.slicer.org/t/convert-stl-file-into-bmp-image-set/11149 "2020-04-16T13:46:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Mathias](https://avatars.discourse-cdn.com/v4/letter/m/bbe5ce/32.png) [@Mathias](https://discourse.slicer.org/u/Mathias)\
**Post date:** [April 16, 2020, 1:46pm UTC](https://discourse.slicer.org/t/convert-stl-file-into-bmp-image-set/11149/1 "2020-04-16T13:46:30Z")

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Hello,  
as you see in the title, I need to convert my .stl file into .bmp (bitmap) image set.  
I searched on internet but I didn’t find any tutorials about it.  
I need my image set for a 3D printing project, each image need to be space of “x” mm.

It would be very significant if someone could help me.

Thank you,

Mathias.

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<div class="post-metadata">

**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [April 17, 2020, 5:37pm UTC](https://discourse.slicer.org/t/convert-stl-file-into-bmp-image-set/11149/2 "2020-04-17T17:37:12Z")

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You can use the segment editor for this. Just load the STL as a segmentation, convert to labelmap and save as a bitmap (bmp is not a good format of course, but sometimes that’s what’s needed for legacy equipment I suppose).

![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/9/b9e2d4b367640f84c1b090dea580ba778a0d6bdc.png)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/c/4/c472ca66c6eb7f41b9a70fc11a9d2381154cf4f6.png)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/4/b/4b51057f035fb8058e0a6c0fc34d2af30bc29eb5.png)

[https://slicer.readthedocs.io/en/latest/user\_guide/module\_segmenteditor.html](https://slicer.readthedocs.io/en/latest/user_guide/module_segmenteditor.html)