Redsail Cutting Plotter Usb Driver Install May 2026

Installing the USB driver for a Redsail cutting plotter involves two primary phases: installing the actual driver software to create a virtual COM port and then configuring your cutting software to communicate through that port. 1. Driver Installation Steps

Locate the Driver: Drivers are typically found on the installation CD included with the device or available for download on the Hflaser Download Page. Common chipsets used by Redsail include FTDI and CH341/340.

Initial Setup: Run the installer (e.g., USB Driver.exe) before connecting the plotter to the computer.

Connect and Power On: Once the software installation is complete, connect the plotter via USB and turn it on. Windows should automatically detect the new hardware and finish the setup.

Administrator Rights: Always run the installer as an administrator to ensure proper registry changes. 2. Port Configuration (Device Manager) redsail cutting plotter usb driver install

Because the plotter communicates via a "USB-to-Serial" bridge, you must identify which virtual COM port it is using. Redsail Cutting Plotter User Manual for USB Port - emoc

Step 5: Verify in Device Manager (Crucial step).

1. Right-click the Start button → Device Manager.
2. Expand Ports (COM & LPT).

• Success: You will see “USB-SERIAL CH340 (COM3)” or similar. Note the COM port number.
• Failure: You will see a yellow exclamation mark under “Other devices” or “Unknown device”.

2. Driver Acquisition – Where to Get the Correct Driver

Do not use generic "USB driver downloaders". Sources:

• Official RedSail (if still available): http://www.redsail.com.cn → Support → Cutting Plotter → USB Driver
• Alternative / OEM match: Many RedSail plotters are rebranded (GCC, Liyu, RuiJie). The most compatible driver family is Liyu USB Driver (CH340/CP210x variant).
• Backup: Use the Windows built-in usbser.sys for CDC mode.

Precise driver files you might need:

| Driver file | For | |-------------|------| | usbser.sys | Generic USB-to-Serial (Windows 10/11 native) | | CH341SER.EXE | CH340/CH341 chipset (very common in RS-720) | | CP210x_VCP_Windows | For Silicon Labs CP2102 | | RedSail_Setup_v2.1.exe | Vendor driver + plotter management tool | Installing the USB driver for a Redsail cutting

Chapter 3: The Installation Process

Here is the step-by-step execution of the install.

1. Extract the Files: Locate the downloaded ZIP file (e.g., CH341SER.ZIP). Right-click it and select Extract All. Open the extracted folder.

2. Run the Setup: Look for an application file named SETUP.EXE or CH341SER.EXE. Right-click it and select Run as Administrator.

3. The Driver Window: A small window with Chinese or English text will appear. Step 5: Verify in Device Manager (Crucial step)

   • Click the INSTALL (or "Driver Install") button.
   • Note: Windows Security may pop up asking, "Would you like to install this device software?" Click Install.

4. Success: You should see a prompt saying "Driver install success" or "Install Complete."

3. Step-by-Step USB Driver Installation

Phase 3: Installing the Driver (Two Methods)

There are two ways this usually goes down depending on the age of your plotter and Windows version.

1. Block Windows Driver Updates

Windows will occasionally push a “better” driver that breaks your RedSail. To prevent this:

• Go to System Properties → Hardware → Device Installation Settings → Choose No.
• Use the Microsoft “Show or hide updates” troubleshooter to block the CH340 update.

Verify COM port

• In Device Manager → Ports (COM & LPT) → note the COM number (e.g., COM5).
• Right-click → Properties → Port Settings:
  • Baud rate: 9600 or 38400 (defaults: 9600 for HP-GL, 38400 for DM/PL)
  • Data bits: 8
  • Parity: None
  • Stop bits: 1
  • Flow control: None or Hardware (RTS/CTS)

⚠️ Match these exactly with your cutting software (SignMaster, ArtCut, Flexi, Easy Cut Studio).