Cut issue in second pass

Does anyone have any idea why when I’m trying to cut the second pass it goes off the line?

Please look at the attached image:

You have unaccounted motion in your laser mechanism. Eliminate any possible backlash.

Do a full mechanical review:

  1. pinion gears are properly secured to stepper shaft
  2. all couplers properly secured
  3. review belt tension
  4. wheel tension
  5. any other mechanical linkage
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You may be having stability issues with your work platform. Make sure that your laser is set up on a stable surface that will not be affected by being bumped: or children, pets or even by you working around the machine while it is running.

Thank you for the recommendations, I will check those items and then let you know how it goes.

@berainlb @Doug1955, thank you guys I followed your recommendations in this case the solution was to fix the belt tension as you @berainlb suggested in item 3.

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