This is a printable platform for the Eyewriter 2.1 open-source eye-tracking system that can be put together using cheap off-the-shelf hardware. For more information about the Eyewriter 2.1 project, visit http://jason-webb.info/wiki/index.php?title=Eyewriter_2.1 For some more information about this hardware platform, check out my blog post here: http://jason-webb.info/2013/05/design-and-early-testing-of-first-iteration-of-hardware-platform-for-eyewriter-2-1-eye-tracking-system/Print the STLs Buy the hardware parts Assembling the platform Simply slide each part onto the threaded rods, making sure to screw on one hex nut on each side of each part. Refer to the pictures attached to this Thing for reference.