Preface: After importing the field lens correction file in the software, the contents of the machine's correct focal length engraving appear to be distorted or incorrect size.

Problem Description

1. Distortion

a. The line in the software is straight, but the actual markings are not straight, distortion occurs.

Reason：

The invalid COR file path, no COR file in the corresponding path.

Solution：

Ensure that the file path is correct and that there is a COR file in the path.

Note: If the software is EzCad, it will prompt the error message “Can not open correct file”, LightBurn will not have any error message.

b. Distortion of the corner of the Marking

Reason：

Designed to be larger than the standard format of the field lens or placed close to the edge of the work area.

Solution：

Design according to the actual specifications of the field lens (e.g. 150x150 mm for F-210), avoiding the use of areas beyond the standard format.

2. Incorrect Size

Reason：

COR files have dimensional errors.

Solution：

Measure the actual size and fill in the “Measured Size”.

This process needs to be repeated until the size of the content design matches the actual size.

Note: This feature is only available in LightBurn when the COR file is loaded, EzCad can not modify the scale.

Relevant methodology

1. Re-generate the COR File

If none of the above solves the problem, use the CorFile2 program to recalibrate the field lens and generate a COR file.

Quick Video

Complete Guide

Before starting, turn on the machine and the E-stop switch, then click the ON button to reset the machine.

1. Place the black paper on the work table and focus on it.

2. Open the calibration program.

Path of the CorFile2.exe：U-disk that came form machine> AURORA 8/AURORA 8 UV>Fiber/UV software>EzCad2

3. Set the marking parameter.

Fill in the parameters to ensure that you can make a clear mark on the material.

4. After clicking the “Mark 9 Points box”, the following markings will display.

5. Click the "Change Image" to align the three positioning shapes with the direction of the actual marking.

6. Using the measuring tool, measure the coordinates of numbers 1-9, fill them in, and click OK.

7. Click F8 to mark the Calibration standard box. The calibrated box will appear as shown below, with the outer square measuring 10mm larger than the inner square.

8. Use the measurement tool to check if the squares' length and width are equal. If not, recalibrate; if they are, click “Save Correct file” and save it to your computer.

2. Manual Aurora Lens Calibration

LightBurn

Manual Calibration Method:

9 Point Correction Wizard Tutorial

EzCad2

Manual Calibration Method：

The manual calibration method for EzCad3 is the same.

Still need help?

For specific technical questions or help requests, please open a Ticket with a picture or video, so our Support team can assist you ASAP.

For the information provided in the ticket, please refer to this link：

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