Software for Vevor KI-720A plotter (download manual - PlotCalc
This is usually a data buffer issue. Lower the Baud Rate in both Device Manager and your cutting software to 9600, and ensure your USB cable is under 6 feet (2 meters) long to avoid data corruption.
Download the (or the driver specific to your KI720). Right-click the file and select "Run as Administrator."
: Open the driver setup file (usually named CH341SER.exe or found in a "USB Driver" folder).
Downloading the Ki720 driver is necessary to:
Extract the file and run SETUP.EXE (usually labeled "CH341SER.EXE" or similar).
: Unpack the plotter and connect it to your computer via USB, but keep the power OFF initially.
Once you have checked all these boxes, you can confidently begin your first design. You are now fully equipped to take full control of your KI720 cutting plotter and start turning creative ideas into real-world projects.