Hello all,
I'm new to this forum so if this is in the wrong place I apologise. Just built a reprap (mix between prusa i2, i3 and my own design) mechanically it works fine but the Z axis is acting weird. When I home the axis it moves fine both up and down (switching the plug around to reverse motor direction) however when I try to manually move the axis or run G-code with pronterface the Nema 17 motor just makes a grinding noise and doesn't turn. I'm running Ramps 1.4.
Anyone got any suggestions? let me know if you need videos/pictures/further details.
Thanks in advance for any help.
-Jordan