Y-Axis jittery/inverted all of a sudden
Hello, I am having a new problem with my Boxzy. In the middle of a print, it began printing into y-axis values outside of the 3D model and was trying to go beyond the y-axis max limit. It kept hitting the limit switch and sounded really rough. This has never happened before now.
To preface: I recently added the Boxzy heated bed, but it was working fine for several prints. This required a firmware update for the heated bed. I also recently removed the print head to fix a clog, but re-assembled and made it through 2 hours of printing before this issue. I’ve tried swapping the limit switches X to Y with no change in behavior. I tried removing the heated bed completely and reloading the firmware for no heated bed. I’ve re-installed Repetier as well. I’m using a 2018 Macbook Pro.
If I try to manually increase the y-axis value by 10 mm, it seems to randomly move +10 or -10, even though I am only pressing the +10 button. It is as if the relative y movement value gets inverted?
As shown in the attached video, if I send it home on the y-axis, it goes to the outer limit switch and back to home, but then jitters violently back and forth as it hits the home limit switch. Sometimes it stops short of the switch and does the same jittering. All starts and stops on the y-axis seem rough.
When I tried a print with a ‘square’ base, it began printing as shown in the pic, which shows the y-axis being flipped half way through.
Any help you can provide will be greatly appreciated.
Thanks in advance!
Is this a good question?