by bothacker, published

Skull by bothacker Jun 22, 2010

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These STL files were created from a SketchUp model on Google 3D warehouse:


From the description:

"Produced at the Center for Biomolecular Imaging at Wake Forest University Health Sciences. used a CT scan of the head and segmented the bone of the skull. acknowledgements to Drs. Stitzel and Link."

The model was printed on a BotHacker 3D printer (RepStrap). Read more about the print on this BotHacker blog post:



Printing this model is a challenge due to severe overhangs. In particular, if you print the skull upright almost the entire bottom surface has no support. Unless you have a machine that can provide support, printing it probably won't be pretty.

To address this problem, we decided to print the skull in two parts: a top and bottom. The bottom part is flipped so that the cut plane becomes the bottom layer, and the top part remains upright. Since the skull is hollow each part is basically a hemisphere. This configuration is still a challenge to print, and will likely have some problems at the top. Fortunately, the defects will be on the interior of the model.

There are still a number of smaller overhangs with this configuration, but we found that they can be cleaned so that they become largely unnoticeable.

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I printed one with support material today. Cleanup was a pain (and not finished), but I'm pretty happy with the results.

I've printed one of these and several people have asked me where the jaw is... :)

Thanks for the design! I printed one out here at work and it looks great. The only camera I have here is my blackberry one so the picture isnt that great.

Wow, beautiful print job! And a very impressive (and tricky) model.

If you filled the hollow interior with 45 degree cones at the top, it would prevent any overhang problems there... If done carefully, it would add only a small amount of material. Alternately, you could probably get away with 6-8 radial 45 degree ribs. I wish there was a skeinforge feature to do that automatically for object interiors.

Brvtal! Bothacker looks fucking sweeeet by the way - Makerbot Team, take note! Nicest DIY 3D printer I've ever seen. Good luck to y'all - any plans to go commercial?

This piece with a jawbone would be the most brutal ever

Gorgeous! Glad to see this finally up here.