CoreXY suddenly moves diagonaly
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It started with a spaghetti print, I heard noices from the printer and went to check. It was printing 100mm off.
I stoppped the print and rehomed. To my surprise the straight moves to find the end of axis (sensorless) were not straight. It moves mostly in the expected direction but some in the other axis too.
Since it is a CoreXY I am guessing the motors are not moving citrectly.
A short video of home axis separately. The first one moves in the oposite direction !?!
No configuration has been altered so I am guessing a hardware issue??
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Check to make sure your stepper motor pulleys are tight.
Try to move the head "by hand" slightly back and forth with the stepper motors engaged and holding position and you might feel that you can move the extruder some. That's an indication one of the screws on the stepper shaft got loose.
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i concur. that looks like a loose pulley.
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Ok I will check that, thanks!
