: Windows assigns new COM numbers if you change USB slots. Always plug the 721PE into the exact same physical USB port on your computer.
Set the Baud Rate to (default for 721PE) or 38400 depending on your manual. Set Flow Control to Hardware (RTS/CTS) . ArtCut Configuration Click Cut/Plot to open the output window.
| Brand | Model Name | Driver Page Action | |------------|-------------|---------------------------------------------------| | Vevor | VV-721PE | Search “Vevor support” → Manuals → 721PE driver | | MH (China) | MH-721PE | Email mh-support@example.com (request USB driver) | | Teneth | Titan 721PE | Download from teneth.net/drivers/721PE_win10.zip | cutting plotter model 721pe driver download
If the machine starts cutting, but then slices a straight line across your vinyl or drops connection mid-job, it is usually a sign of static buildup or an incorrect . Ensure your cutting plotter is properly grounded to the stand, and double-check your software communication speed settings. Conclusion
Check the USB port on the plotter’s mainboard – they sometimes come loose. Also, test the plotter on another computer to rule out a hardware fault. : Windows assigns new COM numbers if you change USB slots
: Most 721PE plotters use the CH340 or FTDI chipset for USB communication.
: Ensure the COM port number in your software settings matches the number assigned in Windows Device Manager. USCutter Forum Troubleshooting Software for JinKa JK-721PE plotter - PlotCalc Set Flow Control to Hardware (RTS/CTS)
under "Ports (COM & LPT)" to identify which COM port has been assigned to the plotter. Software Configuration
A proper driver acts as a translator, converting your design software’s commands (usually HP-GL or HP-GL/2) into motion instructions the 721PE understands.
Because the 721PE is manufactured by various factory OEMs, there is no single "721PE brand" website. Instead, you must download the driver for the USB chip inside the machine. Option A: The Universal CH340 Driver (Most Common)
Installing the driver is only half the battle. You must match the software settings to the driver's output: Set this to Direct COM (not USB).