The story of installing a Redsail cutting plotter USB driver
Installing the driver is only half the battle. Now you must tell your cutting software where the machine is.
Every story begins with a challenge. You have unboxed your Redsail cutting plotter (likely an RS series like the RS720C, RS1360C, or a Jinan Redsail model). You connect the USB cable to your Windows PC, expecting the machine to spring to life in your cutting software (like FlexiSign, ArtCut, or SignMaster). redsail cutting plotter usb driver install
Troubleshooting Common Issues
This article is a deep-dive into everything you need to know about installing, troubleshooting, and optimizing USB drivers for your RedSail cutting plotter. By the end, you will never see a “Device not recognized” error again. The story of installing a Redsail cutting plotter
Check your device:
If you see USB Serial Port in Device Manager → CDC mode.
If you see RedSail Cutter with a yellow exclamation → missing vendor driver.
RedSail’s official macOS support is sparse. However, since most plotters use the CH340 chip, macOS has built-in drivers—but they are often uninitialized. You have unboxed your Redsail cutting plotter (likely
The pinch rollers gripped. The vinyl moved back and forth. The blade swiveled and carved a perfect little star.
Port Verification: 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.