Redsail Cutting Plotter Usb Driver Install [updated] May 2026

Installing the USB driver for a Redsail Cutting Plotter (such as the RS720C or RS1360C) is a multi-step process that involves installing the correct Virtual COM Port (VCP) driver and then mapping that port in your design software. 1. Identify and Download the Driver

Redsail plotters typically use one of two internal USB-to-serial chips. You must install the driver that matches your specific machine's hardware: CH340/CH341 Driver

: Used by many standard Redsail models. You can often find this as CH341SER.EXE from the manufacturer's site. FTDI Driver : Used in some specific "USB Port" versions. Check your Redsail User Manual

or the provided CD to see if your model requires the FTDI version. 2. Installation Steps for Windows

Follow these steps to ensure the computer recognizes the plotter: Connect Hardware

: Plug the USB cable into both the plotter and the PC, then power on the plotter. Run Installer file (e.g., CH341SER.EXE ) and click . Wait for the "Driver install success" message. Verify in Device Manager Right-click This PC/My Computer Device Manager Look under Ports (COM & LPT) redsail cutting plotter usb driver install

. You should see a "USB Serial Port" followed by a port number (e.g.,

Note: If it shows an error, right-click it and select "Update driver," then browse to your driver folder manually. 3. Software Configuration

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

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

Step 6: Assign the correct COM port for your cutting software.

Most RedSail plotters require COM 1-4. If your plotter is on COM 7 or higher, change it: Installing the USB driver for a Redsail Cutting

  1. In Device Manager, right-click the CH340 entry.
  2. Click Properties → Port Settings → Advanced.
  3. Change the “COM Port Number” to COM2 or COM3 (avoid COM1 if it’s in use by a motherboard serial port).
  4. Click OK.

Chapter 1: Preparation (The Tools)

Before you begin, ensure you have the following:

  1. Administrator Rights: You must be logged into Windows as an Administrator.
  2. The USB Cable: Ensure it is securely connected to the plotter and the PC. Do not use a USB hub; plug directly into the motherboard USB port.
  3. Internet Connection: Initially needed to download the driver, though you can disconnect afterward if you wish to stop Windows Update from interfering.

Phase 5: Configuring the Software (ArtCut / FlexiSign / SignCut)

Having the driver installed isn't enough; the cutting software must be configured to match.

Part 8: Frequently Asked Questions

Q: Does RedSail work with Mac M1/M2 (Apple Silicon)? A: Yes, but only via the CH340 driver by开源 (open-source). The official PL2303 driver does NOT work on Apple Silicon. Use the “SiLabs CP210x” driver if your plotter uses that chip.

Q: My cutting software requires a “RedSail Driver” file. Where is it? A: Many rip software packages (like SignMaster Pro) come with embedded drivers. You do not need to install a separate driver. Instead, in SignMaster’s “Plotter Manager,” select RedSail from the list, then choose “USB (Auto)” or the COM port you found in Device Manager.

Q: Why does my plotter only work when I reboot the PC? A: A background service is holding the COM port. Open Task Manager → Startup → Disable non-essential apps. Specifically, look for “USB Device Monitor” or “COM port redirector” software. Step 6: Assign the correct COM port for

Q: Can I use a USB 3.0 port? A: Yes, but RedSail plotters are USB 2.0 devices. USB 3.0 ports have different power negotiation. Use a USB 2.0 hub into your USB 3.0 port for the most stable connection.

5. Common RedSail USB Driver Issues & Fixes

| Problem | Cause | Solution | |---------|-------|----------| | Device shows USB Serial Converter but no COM port | Driver installed as WinUSB, not VCP | Reinstall with VCP driver (CH341/CP210x proper) | | Yellow exclamation Code 10 | Driver conflict or resource conflict | Uninstall device → Scan for hardware → Use different USB port | | Driver installs but cutting software no connection | Wrong COM port or baud rate | Check Device Manager COM number → change software COM port | | Plotter cuts mirrored or wrong size | USB driver correct but software config wrong | Set origin: bottom-left, correct page size in cutting software | | Works once, then disconnects after reboot | Windows fast startup | Disable Fast Startup in Power Options → Shutdown and restart | | Device cannot start (Code 31) | Driver signature blocked | Boot with disabled signature enforcement or switch to official signed driver (CH341SER v3.5+ is signed) |

Chapter 4: The Port Configuration (The Twist)

Installing the driver is only half the battle. Now you must tell your cutting software where the machine is.

  1. Find the COM Port Number:

    • Right-click the Start Button and select Device Manager.
    • Expand the section Ports (COM & LPT).
    • Look for something named USB-SERIAL CH340 (COMx).
    • Write down the number (e.g., COM3, COM5, or COM7).

  2. Configure Your Cutting Software:

    • Open your software (e.g., ArtCut, Flexi, SignMaster, SignCut).
    • Go to Cut Settings or Cutter Setup.
    • Set the Manufacturer to Redsail (or Generic HPGL/GL).
    • Crucial Step: In the "Port" setting, change it from "USB Port" or "Printer" to the COM Port number you wrote down in Step 1.