Redsail Cutting Plotter Usb Driver Install -

This guide covers legacy (Windows 7/8) and modern (Windows 10/11) systems, driver signature enforcement, COM port mapping, and communication verification.

For macOS:

1. Download the macOS Driver: From the Redsail website, download the macOS version of the USB driver for your cutting plotter.

2. Install the Driver:

   • Open the downloaded .dmg file and follow the installation instructions. You might need to drag and drop the driver into your Applications folder or follow other on-screen instructions.

3. Authorize and Connect:

   • Ensure your plotter is connected to your Mac via USB and powered on.
   • If your Mac prompts you about the driver being from an unidentified developer, go to System Preferences > Security & Privacy, and allow apps from identified developers or specifically add an exception.

4. Test with Cutting Software:

   • Launch your cutting software and configure it to use the Redsail plotter. Try sending a test cut.

Method A: Automatic Windows Update (Windows 10/11)

Modern Windows versions often recognize the USB-to-Serial chip automatically. redsail cutting plotter usb driver install

1. Open Device Manager (Right-click the Start button > select Device Manager).
2. Look at the list. Do you see:
   • Ports (COM & LPT) > USB Serial Port (or similar).
   • OR Universal Serial Bus controllers > USB Serial Converter.
3. If these appear without a yellow exclamation mark, the driver is installed. Skip to Phase 4.

Identifying your RedSail Model and Chipset

Look at the back of your plotter near the USB port. Do you see a small, 8-pin black chip? Or check the included CD (if you still have a CD drive). The driver folder is often named by the chip, not by RedSail.

• Old model (pre-2015): Likely uses Prolific PL2303. Warning: Fake Prolific chips are common. Use driver v3.3.2, not the latest.
• New model (2016+): Likely uses CH340. This is the safest, most reliable chip.
• Model RS-series C: Often requires “RedSail USB Driver V1.2” (a modified CH340 wrapper).

Part 7: Best Practices for Long-Term Reliability

Once you have the driver working, keep it that way.

Step 2 – Install matching driver

Case A: CH340/CH341 chipset (most common)

• Download CH341SER.EXE from official WCH.cn
• Run as Admin → Install
• After install, Device Manager shows COMx under Ports (COM & LPT).

Case B: CP210x

• Download CP210x_Universal_Windows_Driver.zip from Silicon Labs
• Run CP210xVCPInstaller_x64.exe
• Reboot.

Case C: Generic CDC (usbser.sys)

• Right-click the unknown device → Update driver → Browse my computer → Let me pick → USB Serial Device (if not listed, choose Ports (COM & LPT) → Standard driver → Communications port).
• After install, you may need to manually edit usbser.inf to add VID/PID (advanced).

Case D: Vendor RedSail specific driver

• Run RedSail_Setup_v2.1.exe (or newer)
• During install, choose USB (Virtual COM) not LPT.
• Ignore any "not signed" warnings.

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. This guide covers legacy (Windows 7/8) and modern

   • 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."

Scenario 1: Using ArtCut (Most common with Redsail)

ArtCut is the default software for many Redsail units.

1. Open ArtCut.
2. Go to the Cutting menu (or the scissor icon).
3. Click Setup or Cutting Setup.
4. In the "Manufacturer" or "Device" list, select Redsail.
5. In the "Port" section, select the COM port you wrote down in Phase 4.
   • Important: Do not select "USB" as the port in ArtCut if you installed the USB-to-Serial driver. Select the COM port number.
6. Click Test. The plotter should move or beep.

Part 6: Installing the Driver Without Admin Rights (Corporate/Shared Computers)

If you work in a school or shared workspace where you cannot install drivers, use this workaround.

1. Download the Zadig utility (open-source generic driver installer).
2. Plug in the RedSail plotter. It will appear as an unknown device.
3. Open Zadig → Options → List All Devices.
4. Select your RedSail plotter (may appear as “USB\VID_1A86” for CH340 chips).
5. In the target driver field, select libusb-win32 or WinUSB.
6. Click “Replace Driver.”

This will not install a permanent COM port, but it will allow your cutting software to talk via raw USB. Note: This is a last resort; COM port stability is superior.