In the factory we cut the ends of the X Rack, which is the toothed rod the print head moves on. You may be experiencing Y Stalling/ Skipping if the ends of your X Rack are not cut. Here are some simple steps to fix the problem:
1.
One side of the X Rods will be glued to the sliders, one side will not.
Hold the slider in one hand, and the X Rack in the other.
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2.
While holding the slider and X Rack, gentlypull apart from each other.
Please be careful as to not bend the Z Rods, only a small gap is needed.
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3.
Rotate the slider so the pegs point upwards. The X Axis is now free from the sliders.
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4.
Trim piece of plastic sticking out from X Rack.
Use wire cutters or diagonal cutters for a clean cut.
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See photo below for completed, cut X Rack.
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5.
Reinstall X Axis in reverse order.
We hope these instructions prove useful. Please reply if you have any trouble with this process or any other questions you may have.