Change toolpath preview quality to "Very High" or "Maximum".
How to Create 3D Models for CNC Routers (Easy for Beginners)
Most dedicated V3M software is Windows-based. While many sources don't list a native macOS version, you can often run a Windows virtual machine or use compatibility layers like Wine. For the most reliable experience on a Mac, professional software suites like VCarve Pro for Mac may be a better option.