I'm having a problem with my first ever print where at the very beginning it auto homes perfectly fine then it will lower the bed significantly, raise it a little bit again and begin attempting to print in mid-air (I have the filament retracted WAY back to stop it going everywhere while testing).
I have the same result whether I print directly from Cura(v 15.04), or if I print from an SD card in my controller.
Here is a video of the problem: Dropbox
And here is the start of the G code.
M190 S70.000000M109 S210.000000;Sliced at: Sat 28-11-2015 13:42:53;Basic settings: Layer he