When I load the 20mm-box.stl file in pronterface.py the gcode file is created, but no item is displayed in the view of the table. Then if I load the gcode file I get an image on my view of the bed, but when I print homing doesnt happen, no extruding happens and the motors vibrate. I can print other stl's with no problem, even tried deleting the files and downloading new ones to no avail. Can anyone help, I'm trying to calibrate infill.
Thanks
