Ripple marks appear on the Y-axis of the CO₂ lead screw machine

In 80% of cases, the issue is coaxial misalignment of the ball screw or coupling, with uneven guide rail resistance being the second most common cause.

It could be that the leadscrew is a little bent, or the two ends weren't installed perfectly aligned.

The focus may not be at the optimal position, resulting in unfocused energy and uneven melting. Alternatively, unstable gas pressure or fluctuations in the auxiliary gas flow may affect slag removal, potentially creating irregular patterns.