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General Mach Discussion / Re: Odd action
« on: December 11, 2016, 05:55:15 AM »
G28 is return to Home position so it will depend on your machine hardware as to why it goes there.
Likely you do not have Home switches and the machine coords are zeroed at the lowest level of Z and thus the G28 is telling Mach to send the Z axis to the lowest position.
Likely you do not have Home switches and the machine coords are zeroed at the lowest level of Z and thus the G28 is telling Mach to send the Z axis to the lowest position.