Another application might be using the COM port. Restart the computer.
your Redsail cutting plotter.
"No!" Marco shouted. "That’s not a lion! That’s a squiggle!"
: Ensure Windows 7, 10, or 11 is fully updated.
A: Right-click → Properties → Compatibility → Run as Windows 7. Many older drivers are not digitally signed for Windows 10/11 but still function. redsail cutting plotter software installation
If the plotter cuts a perfect square or triangle without cutting through the backing paper, your installation is successful. Troubleshooting Installation Issues
Step 4: Alternative Software - Easy Cut Studio (Mac & Windows)
Redsail plotters are compatible with various professional sign-making applications. Configuration steps for common options are as follows: Artcut (2005/2009) Add Device : In Artcut, select the device manufacturer as and the model as or your specific model (e.g., Port Match : Go to the
Setting up Redsail cutting plotter software correctly is essential for unlocking your machine's full potential. By methodically following the steps in this guide—downloading the right drivers based on your plotter's chipset, installing your chosen cutting software, properly configuring the COM port, and fine-tuning your cut settings—you can avoid common pitfalls and ensure a smooth, reliable, and professional cutting experience. Another application might be using the COM port
This article provides a step-by-step guide to installing Redsail cutting plotter software, installing USB drivers, and configuring your plotter for the first cut. Prerequisites Before Installation
Redsail plotters are compatible with several design and cutting programs. The software you received in the box can vary, but the following are common choices.
The most common issue with Redsail plotters is a failure to establish communication via USB. Windows often needs a specific driver (often or CH340 drivers) to recognize the plotter as a COM port. Do not connect the USB cable yet.
Your design software must target the specific virtual COM port assigned by Windows to communicate with the plotter. A: Right-click → Properties → Compatibility → Run
✅ USB Driver installed via the official .exe file (not the CD). ✅ PC shows the plotter in Device Manager. ✅ Sure Cuts A Lot (or Flexi) is installed and activated. ✅ Redsail model selected inside the software’s “Plotter” list. ✅ COM port and baud rate match. ✅ Test cut successful.
Install the software and select "Redsail" or "Redsail HP-GL" from the device list.
Before running software, your computer needs to recognize the plotter, usually via an FTDI or CH340 USB-to-Serial driver.
If your Redsail package came with a software disc and a separate USB device, you will need to plug this USB dongle into an available port before launching the program to deactivate any missing security prompts.