Wanhao i3 (Reprap) PID AutoTune HD

How to perform the PID Autotune on the Wanhao i3 Duplicator 3D printer. This probably also works on other RepRap based printers compatible with Repetier-Host. Download Repetier-Host here: http://www.repetier.com/download-software/ Additional information here: http://3dprinterbrain.com/pmwiki.php/DupI3/PIDTuning Buy the Wanhao Duplicator i3 here: http://www.unclechucks3dprinterstuff.com/