Integrated Build Plate Walker
Place two continuous rotation servo motors, and Arduino Mini, a 3 AAA battery case, and a long range Sharp IR sensor into the print job mid print.
This is still a work in progress, so I am still working out some of the bugs.
Read about how to set this up here: https://printeraction.wordpress.com/2015/05/16/print-out/
Or watch here: https://www.youtube.com/watch?v=mp0pQyzSg4Q
Code is available here: