Bed leveling routine

Too lazy to level the bed with the paper. Print this files and adjust the bed on the fly.

This was especially useful before printing torture tests like…
Zencoal's Sierpinski N4
http://www.thingiverse.com/thing:533896/#files

A method for taping the bed with quick release tabs can be found here:
https://youtu.be/Ix1VKHEzaQg