How to use Creality's jitter calibration? What is the axes have different print quality?

Software Creality Print V5 and Beyond
1

Hi all, hoping someone has some insight:

Under speed calibrations there is a “jitter speed” option. After printing it, I’m seeing a clear difference between the X and Y axis.

As it’s not listed in their tutorial section, does anyone have any general information on this test? What is it meant to test? How do I interpret the results? What settings should I change?

It appears that the test is to calibrate jerk speed, however I have no idea why the two axes have differing print quality.

Any advice?

Pictures below:

  1. Labeled X, actually on the Y axis. Weird print defects, why is this happening?

PXL_20250918_045727972
PXL_20250918_0457279721920×2550 166 KB

  1. Front side of the one labeled X. The ridges are fused at the corners and are generally too close together.

PXL_20250918_045736645
PXL_20250918_0457366451920×2550 139 KB

  1. Front side of the one labeled Y (but is on the x axis). Ridges are well (perfectly) spaced.

PXL_20250918_045741320
PXL_20250918_0457413201920×2550 130 KB

  1. Back side of the one labeled Y. No print defects.

PXL_20250918_045746970
PXL_20250918_0457469701920×2550 115 KB

Creality Print 6.2.1

K2 Plus Combo

Thank you in advance!

2

@FynnAA Here’s a link to the description of what it does, but nothing about the calibration. They discuss Jitter speed near the bottom of the page. Parameter Description: Speed | Creality Wiki

FYI, I found this guide easier to follow than the Creality wiki. Still doesn’t cover Jitter Speed settings, but I found it useful in other areas.