3D Printing Aero-Pad leg test prints with layer shift.

I'm trying to do test prints of the leg for the Aero-Pad. The Aero-Pad was a Fun Rockets product that never came out. I just want to see what one would look like all these years later.

The first print had the leg tip curl up and got aborted about 75% of the way in over wicked layer shift.



The second test print was turned longways across the Y-axis. It had a broad brim and didn't curl. It got aborted early on because of even more wicked and early layer shift.



The third print was longways across the X-axis, with a broad brim, and the bed moving at half speed. It got aborted at 82% because of layer shift.



Any suggested fixes?

Pesky details: CR10-s5 printer, Cura slicer, and gray PLA.

How big is it?

410mm long, 37mm wide, and 50mm tall.

Belt slipping?

Update: this now has Y-axis shifting on a piece that that isn't this part. I'm guessing that a roller is binding or is getting a bum bearing? What does anybody with more experience have to say?

What printer? I might be able to print that on mine if you want me to try it this weekend.

does it do it at about the same point on other prints?

I took the printer half apart and put it back together this afternoon. The problem probably was the glass rubbing on the frame enough to wear a little notch into the aluminum. I think it's fixed now, but I'm in a show me mood. I'm printing small things now with no shift.