1. Common Issues

1.1 The surface coating of the tumbler is not removed by laser engraving, making it impossible to reveal the underlying metal color.

1.2 When the tumbler is engraved using the flat mode, the surface curvature causes distortion of the final design on the tumbler.

1.3 When the tumbler is processed with the Rotary Attachment, the engraved image may appear slanted on the tumbler, or misaligned from the intended position.

2. Solutions

2.1 Use of Recommended Parameters Ensures Quality Results

When engraving a tumbler with a laser, using the recommended parameters guarantees effective results. Excessive power may leave dark burn marks on the metal beneath the tumbler coating, while insufficient power may fail to fully remove the surface coating. Recommended parameters ensure complete removal of the coating in the engraved area while preserving the metallic finish underneath.

2.2 Curved Surface Mode Maintains Accurate Engraving

When using the curved surface mode, adjust the values in the curvature measurement settings. The device measures the curved engraving area and adjusts the laser focus to follow the tumbler’s curved surface. This ensures accurate engraving results and prevents image distortion.

2.3 Rotary Attachment Mode Delivers Consistent Image Quality

Using the rotary attachment allows the tumbler to rotate fully during surface engraving. During distance measurement, the laser records the highest point of the tumbler’s horizontal surface. During engraving, the laser consistently maintains this focal point, ensuring that the engraved image remains undistorted.

2.4 Previewing the Engraving Ensures Correct Positioning

The tumbler must be secured in the device’s processing area before engraving. Regardless of the chosen mode, a preview should always be performed prior to engraving. This allows verification of whether the image is correctly positioned and adjustments to be made if necessary.