USB cable connection

Test the connection as following:

1. Don’t forget to install the driver for USB.

If you are not sure, just install USB driver again.

2. Laser cutter system connect to the PC.

If still nothing, connect the USB cable to controller directly, like below.

View Device Manager to make sure you have Rdworks connected to the machine. The port number of the COM appears in the following of the “USB Serial Port”.

3. Install the USB driver manually

https://www.thunderlaser.com/download/down/USB_driver_diagram_for_windows.rar