Sometimes Windows assigns a COM port that is already reserved.
If you are unsure, download both; Windows will safely ignore the incorrect driver during manual selection. Step 3: Install the USB Driver Follow these steps to run the driver installation package. Disconnect the cutting plotter from your PC. Right-click the downloaded driver installer .exe file. Select . Click Install or Extract and follow the on-screen prompts. Restart your computer once the installer finishes. Step 4: Connect and Verify in Device Manager
If you encounter issues during the installation process or your plotter is not recognized by your computer, try the following troubleshooting steps:
: This usually happens with older PL2303 chips on Windows 10/11. redsail cutting plotter usb driver install
Plug the USB cable into the plotter and the computer.
Double-click the downloaded setup file (usually named CH341SER.EXE or similar).
as the device and match the COM port to the one found in Device Manager. : You must copy the specific Redsail driver file into the Output Drivers Sometimes Windows assigns a COM port that is
After a successful installation, the driver creates a virtual serial (COM) port on your system. You can find the assigned COM port number in Device Manager under "Ports (COM & LPT)" to use later in your cutting software.
Set the hardware flow control settings to the Redsail standard: : 9600 Data Bits : 8 Parity : None Stop Bits : 1 Flow Control : Hardware or Xon/Xoff Common Installation Errors and Fixes Error: "Device Cannot Start (Code 10)"
"Okay," she muttered, cracking her knuckles. "Driver time." Disconnect the cutting plotter from your PC
Before diving into the technical steps, a little preparation can save you a lot of time and frustration. Here's what you'll need:
✅ Plotter powered ON before connecting USB ✅ Correct chipset driver installed (CH340/CP210x/CDC) ✅ COM port number identified and set in cutting software ✅ Baud rate matches plotter internal setting (check plotter menu: Interface → Baud) ✅ No other software (e.g., 3D printer host) using same COM port ✅ Windows Fast Startup disabled for persistent connection