Geeetech

Try downloading lower version of Arduino (1.0.6 for example). It worked for me

I have assembled the printer, tested the endstops, the extruder and bed if they are heating, the sensors. The one and only thing that is not working properly is the command G28 or so called auto-leveling. When i send it to the printer the extruder hits the heating bed. The endstop is like switched o...

In the building instructions is written that there is second z motor on page 63.(http://www.geeetech.com/wiki/images/8/8 ... uction.pdf).
So where is it?