Constant layer shift along y-axis
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How did you ensure that the Z axis was orthogonal to both X and Y when you built the machine?
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your frame or at least your axis are not square to each other. is this the first time the printer has been assembled?
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unrelated, but your belt path is also extremely un-parallel to the frame, which will result in different steps/mm depending on position and also belt tension.
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Yes it is the first time this printer is assembled in that way. Nevertheless, the belt does not need to be parallel/flat to the extrusion. I rather think that one axis might not be straight, but how this should be possible in a cartesian? Even if y would be tilted 20 degree it would only matter for the first layer.
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@dgrat said in Constant layer shift along y-axis:
Nevertheless, the belt does not need to be parallel/flat to the extrusion.
it does create a small scaling error due to the angle of the belt.
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Testprint of 2x2x10 cm cube. The higher the print, the less is the y offset. This is a bit weird. I try to re-check the y axis.
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I re-assembled the x-axis ensured it is more or less orthogonal and the error disappeared
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The issue appeared again with a 10x10x2cm cube. Y is not straight.
Is there a way to log step losses? Printer is square and I supect an issue with the driver?!
Actually, I never had a similar problem with any of my printers.
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Did you correct the angle of the Y belt? Perhaps it's binding?
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Loose pulley, check that the bed is mounted fixed
