MAKER: Design of a Virtual CNC Mill by Unity Software

It requires a lot of hands-on experience to learn how to operate a computer numerical control (CNC) mill.Virtual Reality (VR) can serve as a way to teach how to properly operate it.The goal of this research is to create a virtual CNC mill that can provide interactive training for students.The Unity software was used for this goal.Unity is a game development engine used to produce video games, utility software, and more.The functionality of the CNC simulation was created with C# scripting.The visual representation of the CNC mill was built through 3D modeling, and then transferred into FBX 3D models which are compatible with Unity.The virtual machine is able to take G-code inputs via either an input field or a text file.For the current version, it can simulate G00, G01, and G02/G03 commands and is able to cut sample workpieces per input.It also can save the coordinates of the cutting path via json file and use a python script to view its movement on a line graph.The virtual machine emulates the input commands very similar to the actual machine.This can serve as a good learning tool for CNC machine operators.The virtual machine created through Unity is proof that a digital simulation is achievable for the CNC machine.Future research will include implementing and incorporating mixed reality.Incorporating these kinds of technology will help a more immersive learning experience for students.