Standard Mac design software (like Adobe Illustrator) cannot send cut commands directly to the CT630. You need a dedicated "bridge" application:
The Kingcut CT630 typically uses a USB-to-Serial connection. For a Mac to communicate with the cutter, it must recognize this internal serial chip. Kingcut Ct630 Driver For Mac
But there is one phrase that strikes fear into the heart of every Mac user: “Driver installation.” * Standard Mac design software (like Adobe Illustrator) cannot
Adobe Illustrator’s native print dialog. You cannot print directly from Illustrator to a Kingcut without a plugin like Cutting Master (which is for Graphtec only). But there is one phrase that strikes fear
A driver is useless without compatible software. The Kingcut CT630 does work with standard printer dialog boxes (like a Word document). You need sign-making software that supports "Cutting Masters."
You should hear the cutter initialize. If you don't, swap the TX/RX jumpers on the adapter (some cheap ones have the pins swapped).