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X-Axis is not parallel to the frame  

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andrut
(@andrut)
New Member
X-Axis is not parallel to the frame

While finishing building the mk2s kit I noticed that X-Axis is not parallel to the frame. When I force it to be parallel at the top by manually rotating axes of z-motors and then remove my hands, right side tends to move down. See the video:

How do I correct for this problem?

When I force it to be parallel I can see that there's some stress and small bending of left Z-axis rod. This bending probably causes motion back to the notparallel position.

I tried unscrewing z-motors and unscrewing Z-axis-bottoms to correct for the skew without any success.
When z-motors are removed this skew is still present.

Posted : 09/10/2017 7:13 pm
andrut
(@andrut)
New Member
Topic starter answered:
Re: X-Axis is not parallel to the frame

I finally found a similar problem Jacques Patenet had in the "answers forum": Geometry of X and Z axis.
I disassembled the x and z axes and checked the x-axis holes in x-ends and found that my x-end-idler has non perpendicular ones. Holes in x-end-motor seem to be ok.
Checkout the picutres below. I tried to visualize the problem against the corner of a table. I don't have a better way to visualize it right now but the angle of the tilt is consistent with tilt I got when the x-axis was mounted on z-axes on the frame. The other hole in x-end-idler is also tilted.
The other x-end is almost perfect in regards to these two holes.

Posted : 12/10/2017 8:37 pm
andrut
(@andrut)
New Member
Topic starter answered:
Re: X-Axis is not parallel to the frame

Just for the record. I printed a replacement x-end-idler part on friends printer and it corrected the problem.
I was able to perform xyz-calibration without major problems and I'm happy to report that it just finalized its first print :).

Posted : 14/10/2017 1:41 am
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