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7. Z Axis Motion
Overall reliability of your Fusion3 3D printer can be impacted if the Z axis, which controls the
raising and lowering of the print bed, is not working correctly.
Like the previous step, simply move the Z axis up and down by hand. It’s easiest to home Z,
followed by jogging Z high enough to get your hand underneath the substrate and grabbing the
belt with your hand. Once you have a grip, press the orange reset button and move the belt left
and right to raise and lower the bed. It should be relatively smooth motion all the way to the
top.
Of course, it will be somewhat difficult, as that’s quite a bit of weight, but look for obvious
rough spots or complete stoppage throughout the ~300mm of travel. They are also somewhat
tighter at the bottom in many cases. If the motor is able home and jog Z upwards without
skipping steps, it should be fine.
The most important area is at the top of the rear smooth rod. There should be no resistance on
the white bushing created by sideload, tightness, misalignment, etc. For example, if your
substrate is out of level, the grip on this smooth rod is increased, as the circumference of that
hole is decreased when not flat.
This would cause binding or dragging, which is when the white bushing might follow the
substrate, as opposed to moving in accordance with it, creating much difficulty in achieving
consistently perfect first layers of prints.
If you suspect this is an issue with your printer, please contact Fusion3 Technical Support for
assistance and further diagnosis.
