: In the Windows Device Manager , expand the "Ports (COM & LPT)" section. Your plotter will appear as a "USB Serial Port" followed by a COM number (e.g., COM3). Make a note of this number, as you will need it for your cutting software.
Once the driver is installed, you must tell your software (ArtCut, FlexiSign, or CorelDRAW) which port to use. Using ArtCut Open ArtCut and go to the Select your device (usually and choose the that matched the one in your Device Manager (e.g., COM3). Flow Control Using FlexiSign Redsail Cutting Plotter User Manual for USB Port - emoc
: Point Windows to the folder where you extracted your Redsail drivers. Once finished, the device should appear under Ports (COM & LPT) as "USB-SERIAL CH340" or similar. 3. Configure Software Settings
Windows will locate the .inf file and complete the installation. Step 3: Verify the COM Port Assignment
To always use COM5 (avoid shifting ports): redsail cutting plotter usb driver install
If the automatic approach fails, use the manual driver installation via Device Manager:
Ensure the sequential hardware communication settings match the Redsail factory defaults:
: Avoid using front-panel USB ports on desktop computers. Plug the cable directly into the motherboard ports on the back of the PC. Avoid long USB extension cables or unpowered USB hubs. 2. Plotter Pauses Mid-Cut or Cuts Random Lines Cause : Static buildup or incorrect flow control settings.
or the provided CD to see if your model requires the FTDI version. 2. Installation Steps for Windows : In the Windows Device Manager , expand
Set Baud Rate to or 38400 (default 9600 works best for most). Click Test to ensure connection. 5. Summary Check Driver Installed? Check in Device Manager under Ports (COM & LPT). COM Port Assigned? Ensure it shows "USB-SERIAL CH340 (COMx)". Software Configured? Ensure Software COM matches Device Manager COM.
Go to the , Link Options , or Device Settings menu.
. You’ll likely see a yellow exclamation mark under "Other Devices". The Manual Search : Right-click the unrecognized device and select "Update Driver Software" . Instead of searching automatically, choose "Browse my computer for driver software" and point it to your driver disk or downloaded folder. Verification : Once installed, the device should transform into "USB-SERIAL CH340 (COMx)"
Below are installation steps that work for most Redsail cutters. The exact procedure varies slightly depending on your Windows version. Once the driver is installed, you must tell
Download the version (simplest for automatic installation) or the ZIP architecture file. Option B: CH340/CH341 Drivers
Set the Port to the you found in Device Manager (e.g., COM3).
Connect your Redsail plotter to the computer using the USB cable and power it on.
Installing a Redsail cutting plotter via USB can be challenging because these machines rely on older USB-to-serial communication chips. Modern Windows operating systems rarely install these drivers automatically. This step-by-step guide will walk you through downloading, installing, and configuring the correct USB drivers to get your plotter running smoothly. Step 1: Identify Your USB Chipset