

The interface is clean and intuitive with an interactive 3D environment. You can use it for both 3 axis and 5 axis files for mills, lathes, and 3D printers. While NC Viewer isn’t advanced as others, it’s still a decent tool for verifying, visualizing, and backplotting G-code. That’s not the only benefit of this free online CNC software, though – it’s also fully mobile compatible for iOS and Android devices, including tablets, so you can use it anywhere regardless of device. However, while it’s browser-based, the software is automatically cached by your browser so you can still use it offline. Whereas the majority of CNC simulators are downloadable software, NC Viewer is a browser-based option that’s completely free to use.

It supports a variety of different tool shapes, including cylindrical, conical, ballnose, snubnose, and spheroid.

With CAMotics you can simulate 3-axis G-code programs and then view the results in 3D. It’s available on Windows, Mac, and Linux, so you’re not restricted by your operating system, unlike with some other software. This software has been around since 2011 and is popular among hobbyists. You don’t have to splash out to benefit from CNC simulator software – CAMotics is one of several open-source simulator solutions that are completely free to use. Can’t estimate the overcutting and undercutting of the milling operation.
