Originally printed and shared Dec 21st 2011 - 

This is a two part version of the Human Brain by jmil
You need at least 8% infill to print this, you can go higher, it will use a lot of plastic to print this brain and take a long time.

It was printed with a standard 0.5mm nozzle and 0.3mm layer slice.

The Gcode will be big 30MB+ for each part so really you want to be printing this from a SD card not via a serial connection.

Each half was about 8 hours for me to print on a Prusa with heated bed.

I also found a small slow moving fan blowing across the object really helps with this sort of build, it's just full of overhangs and thin plastic sections floating in the air. Just make sure you don't over-cool your heated bed or hot-end if you do decide to use a fan.

It requires no support so is easier to print and looks cool when you pull it apart front of someone.

This was one of the most tricky things I have ever printed - good luck.

If anyone with an Ultimaker fancies a challenge, print this.

It's printed with Faberdashery Pink PLA.