Summary

This is the simple version of my brain (out of MRI scan).
The complete story can be found here:
http://www.thingiverse.com/thing:1332983

Print Settings

Printer:

Prusa i3

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.2 mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>15%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>I added a few supports using meshmixer.<br>The files DO include the supports.</p></div>

Post-Printing

I colored one hemisphere with nail color to show anatomical features (gyri).

How I Designed This

This is a simplified and down-scaled version of my original design that I extracted from MRI of my own brain.
In this version I deleted the internal structures and made it into a single part.
Then I splitted it to two parts to be printed with no or minimal supports.
So you should glue the two parts permanently after print.

My own brain (simple version)