Image alignment issue may be stepper motors?

[Dean808 (Dean Oconnor)]

aloha from hawaii…im hoping i can get help with current engraving issue . i have a 60w chinese laser with ruida controller.
the picture with motorcycle is skewed to the left starting at zero scan angle. when i start scan at 180 it skews to the left but in the opposite direction.
the picture with fish is numbered 1 and 1 …2 and 2 etc to indicate where those segments were supposed to end up.
text and vector objects seem to be fine its only photo type images that are affected.
thank you in advance for advice and support

[Rick (Technical Evangelist)]

This is worth review:

How do I fix skewed or slanted engraving?

This is an example of a fill followed by a cut around the letter A: [image] The fill is slanted, but the cut appears to be correct. If you have engraving that is slanting to one side, but cuts appear correctly, you likely have your motor pulse step polarity set incorrectly. On Ruida controllers, there’s a setting called ‘PWM Rising Edge Valid’ that you can change for each axis that tells the controller whether the rising edge or falling edge of a step pulse is what the motor driver is lookin…