How to Use the Camera on the Nano Duo in LightBurn

Introduction

This guide explains how to use and calibrate the built-in camera function of the Nano Duo in LightBurn. Proper camera calibration ensures accurate visual positioning, improves engraving precision, and minimizes alignment deviations between the on-screen design and the actual engraved result.

Required materials: red cardstock, calibration card.

1. Open the LightBurn software, connect the Duo device, and then click Galvo Engraving Mode → BL 450 nm. (The connection is considered successful only if the following device information is displayed in the console.)

The above applies to versions below 2.0.00

The above applies to versions 2.0.00 and above.

2. Click Laser Tools → Calibrate Camera Lens in the upper left corner.

The above applies to versions below 2.0.00

The above applies to versions 2.0.00 and above.

3. Once you are on the Calibrate Camera Lens homepage, select USB Camera (the built-in camera).→ Standerd Lens→Next

The above applies to versions below 2.0.00

The above applies to versions 2.0.00 and above.

4. After proceeding to the next page, capture the images in the order of ①②③④ shown in the top left image, repeating this process nine times in different directions before proceeding to the next step of visual alignment. (If you proceed directly to visual alignment without performing visual calibration, engraving deviations may occur.)

Error demonstration: Overexposure, too bright

Correct demonstration

5. The following message indicates that the visual calibration operation has been completed. Please click "Align Camera" to enter the visual alignment page.

(1) The first method to access the visual alignment page

(2) The second method to access the visual alignment page

6. Remove the calibration card here, then select USB Camera (the built-in camera) and click Next.

7. In the parameter settings page, the necessary parameters to adjust are Fill Speed and Fill Power, as well as Line Speed and Line Power.7. After setting up, click Frame → Start, and then click Next when the sculpting is complete.

8. On this page, click Capture Image → Next.

9. Double-click the center point of the graphic in the order of 1, 2, 3, 4 until it looks like the second image, then click Next.

10. The following message indicates that the visual alignment operation has been completed.

11. Finally, verify if there are any obvious deviations, then return to the creation page→Window→Check Camera Control, and in the Camera Control page, select the camera module→Update Overlay

The above applies to versions below 2.0.00

The above applies to versions 2.0.00 and above.

12.Import the carving material, place it on the carving area in the canvas, and then click Frame (to confirm the carving position) → Start (to start carving).

13. After the carving is complete, click "Update Overlay" again to check if the carved position on the canvas matches the actual carved position. A deviation of 0.5-1 mm is normal. If the deviation is large, you need to repeat the visual alignment operation in step 7 above.)