<p>I have a Maker Farm Prusa i3v 8" i just finished building.  Initially when i first homed it, it ran fine, it even ran a test g code for movement.  The problem is now the Z axis wont move anymore.  First i checked for physical issues such as binding or nuts coming out of traps, everything's OK there.  In Pronterface i can move x &amp; y no problem, but Z will not move, there is no noise from the steppers.  Also unusual is the the Z axis is not on the endstop, its resting on its own in a spot (the hotend is about 2mm off the bed).  I ordered some new end stop switches to try on my Z axis....any thoughts?  I'll update after switch install.</p>

[{'answer_id': 5712, 'author': 'jeremiah harless', 'author_id': 10337, 'author_profile': 'https://3dprinting.stackexchange.com/users/10337', 'pm_score': 1, 'selected': False, 'text': '<p>If you are using Repetier the code to test the endstops is m119 I think. If your z stop is triggered, you may have to invert it in the config.h file. I had this same issue for days before i figured out the control board was reading the switch as normal close instead of normal open. Hope that helps!</p>\n'}, {'answer_id': 5714, 'author': 'PR90', 'author_id': 10340, 'author_profile': 'https://3dprinting.stackexchange.com/users/10340', 'pm_score': 0, 'selected': False, 'text': '<p>Try sending a motion command manually, such as G1 X20 Z10, to eliminate any bugginess from the software interface as a reason for the Z not moving properly when commanded to. Next you could check the park location in Pronterface, perhaps the extruder head is sitting there waiting for the next command.</p>\n'}]
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