Preface: This article describes how to replace a field lens and the parameters that must be set after the replacement.

Quick Vide

Aurora 8 and 8 PRO

Aurora LITE

Replace the Field Lens

Rotating counterclockwise remove the field lens and replace the other one.

Set the focus length

Aurora 8 and 8 PRO

1. Connect the machine to the PC.

2. Check which COM you need to use

Open up Windows Device Manager and look for a CH340 device under the Ports (Com & LPT) section

3. Find the TLTool

You can find the TLTool in the U-disk that came with the machine.

Software path：U-disk came with machine>>AURORA 8/AURORA 8 UV/AURORA 8 PRO >> Auto Focus software

4. Connect the TLTool

Set the COM and click connect.

After the connection is completed, the parameters in the data should be set, as shown below.

Data Setting for TLTool
Gear pitch	5
Pulse	5000
Speed	3
Focal length	default

5. Change the Recommended Focus Length

We have already backed up the focal length data for all field lenses before shipment. After replacing the field lens, you can directly refer to the screenshots we have provided.

You can find these pics in the U-disk.

File Path: U-disk that came with the machine>>AURORA 8/AURORA 8 UV/AURORA 8 PRO >> Fiber software/UV software >> Recommended focus length

It is recommended that you copy it to your personal computer for safekeeping.

According to the text above the field lens, select the corresponding parameter.

Fill in the parameter and send it.

If you can't find the image above in U-disk, please contact us.

If you're on a MacBook, follow the same steps.

TLTool Installation Tutorial on MacBook.

How to install TL Auto Focus Software on a Mac Computer

Aurora Lite

1. Select the corresponding manual focus tool

According to the text above the field lens.

Select the corresponding manual focus tool.

The length of each manual focus tool varies, so the measurements shown in the pics above are for reference only.

2. Re-calibrate the dual red light focus

Place the object on the work table and focus using the manual focus tool.

Loosen the two screws of the dual red light pointer and adjust the red light pointers.

Lock the two screws after the two red light points on the object are merged.

Related articles

If you think the focal length is incorrect, please refer to the article link below for calibration or contact us for assistance.

How to calibrate the focus length :

Calibrating Focus Length for the Aurora Series

Change the COR File

1. Select the correct file (.cor) on the U-disk.

It is recommended to copy the correction file to your personal computer, if the U-disk is accidentally lost, please contact us for access.

You can find these pics in the U-disk

File path: U-disk that came with the machine>>AURORA 8/AURORA 8 UV/AURORA 8 PRO >> Fiber software/UV software >> Correction file

2. Import the COR file into the software.

EzCad2:

LightBurn:

3. TIP

You can go through the process of loading the Cor file each time in Ezcad but your parameter library will not necessarily work the exact same for all the Lens options. Thunder Laser USA suggests that you create separate copies of the EzCad folders and have each one set up for a different Cor File and Field Lens. You can have multiple device profiles in Lightburn to accomplish the same thing:

EzCad2/3:

Operating Demonstration：

Each folder has separate settings for each Lens, the shortcuts for EzCad2/3 are then pointed to the corresponding folder.

LightBurn:

You can achieve a similar setup by creating multiple device profiles, each configured for a different COR file and lens.

Related content For Aurora 8 version 1.0

If your Aurora is version 1.0, the step is different from the above, for more details, please refer to this video:

How to replace the field lens and Load the corresponding focal length of AURORA 8 ver 1.0

Still need help?

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

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

Help Tech Support Troubleshoot Faster

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