Plug in your DC330 and look under "Ports (COM & LPT)."
Never have more of the blade sticking out than the thickness of a credit card.
| Problem | Likely Cause | Solution | |---------|--------------|----------| | Plotter not recognized | Wrong USB driver | Install CH340/PL2303 driver manually via Device Manager → Update Driver → Browse → Select driver folder | | Cuts erratically or stops | Baud rate mismatch | Force 9600 baud in software and on plotter’s LCD menu (Tools → Serial → 9600) | | Blinking red light (“Hot” error) | Overheating sensor (some models) | Power off for 30 min. Clean dust from vents. Reduce blade force & speed. | | Lines cut too deep / through backing | Incorrect blade force | Lower to 80–150g for standard vinyl; 250g for HTV (with 45° blade) | | Software says “Port in use” | Another app (e.g., SignMaster) held port | Restart PC, open only one cutting software |
Handles material widths between 300mm and 330mm (approx. 13 inches) .
In your software’s "Plotter Configuration", reduce the following: