by Cbonsig, published
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This is a 3D print derived from medical imaging of an aortic bifurcation and iliac arteries. The source data set is publicly available in the OsiriX DICOM library http://pubimage.hcuge.ch:8080/ . It is a CT scan from a patient that appears to have had one or more iliac stents placed in their right iliac artery. The workflow used to create this Thing was (almost) completely open source:
AMNESIX Data set: http://pubimage.hcuge.ch:8080/DATA/AMNESIX.zip
OsiriX used for segmentation and rough STL export: http://www.osirix-viewer.com/
Meshlab used for cleanup: http://www.meshlab.org/
Final cleanup, slicing, and GCode using Netfabb (http://netfabb.com), which is a bit faster than the open source alternatives.
Printed with RepG on an Ultimaker. Using the Netfabb "standard" profile (modified to print at 230 degrees) the full print took 4 hours and 19 minutes.
More on the story of this model: http://craig.bonsignore.com/2012/01/17/open-source-human-anatomy/
Print upside-down, as shown on the bed of the Ultimaker. There are some overhangs that causes a bit of drooping in my print, but nothing too terrible. I had quite a bit of stringing, which I cleaned up using a hobby knife in about 15 minutes. This makes a nice model for engineers or designers working on stents or endovascular aneurysm repair devices. A print like this can be used for a mold to create a bench-top deployment or flow model. This one is printed in PLA, but as a mold core, this would be a good candidate for trying water soluble PVA.
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Aortic Bifurcation by Cbonsig is licensed under the Creative Commons - Attribution - Share Alike license.
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