My four rails are not quite perpendicular. The build size is 60x60cm and they are all 4-10mm off on the opposite side of the slider.
I have tried loosening and tightening the different bolts on the sliders, but it does not make much of a difference.
Any suggestions on how to adjust this, or should I try printing them with other settings, maybe a bit slower.
(25mm build, coat hanger steel rails, PLA 0.26 layer thickness)