making my brains

So my brain is a little bit fucked up. But now I get some cool desk decorations out of my MRI’s!

I started by converting my MRI (DICOM) files into .stl files. I did this using the software 3D Slicer, one commonly used in radiology. I loaded in the DICOM files.

The software has built-in modules for segmenting different tissue types, such as skin, bone, etc. but it didn’t have any for the brain. I downloaded an open-source plug-in for this software called Swiss Skull Stripper that is optimized for segmenting brain MRI images.

I experimented using the different brain slice orientations as the references for segmenting before landing on sagittal neuroquantitative as the highest resolution cut.

Here’s an example of a bad vs. good cut:

I then exported it as an stl file and began printing. I used the Bambu STL printers. It took 11 hours (lol…) because I printed it to scale and with all the internal geometries (so it’s also an impossible object!).

Once the prints were finished, I removed the supports and sanded the rough edges.

Finally, I sprayed painted them (#sorry they aren’t the same color but I wanted them this way as desk decor).

Here’s my clean work station:

and here’s my cost analysis:

Cost Type Cost Price Source Quantity Total
Materials Brain MRI $300 bettercare.com 1 $300
PLA $0.10/g ankermake.com 440g $44
Sand Paper $0.52/sheet homedepot.com 0.05 sheet $0.03
Spray Paint $5.98/can homedepot.com 0.02 can $0.12
Labor Prototyping Engineer $36.48/hour ziprecruiter.com 3 hours $109.44
Overhead Facility Time $3/hour ankermake.com 24 hours $72
Design Engineering and Development $48.17/hour ziprecruiter.com 3 hours $144.51

 

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