When using the F2 Ultra UV for glass inner engraving, the actual engraving position may be incorrect along the X- or Y-axis, as shown below.

• Y-axis

• X-axis

Possible causes

1. The value on the positioning piece does not match the setting in the software.
2. The inner engraving work area calibration was performed incorrectly. The test card or calibration card was not placed flush against the riser top plate.
3. Other unknown causes.

Solution

1. Make sure the value on the positioning piece matches the setting in the software, as shown below.

2. Perform the inner engraving work area calibration again to see whether the issue is resolved. During calibration, make sure the test card and calibration card are placed flush against the riser top plate.