Been trying to get my cnc machine started up but having difficulty with the whole g code aspect of it. All of the videos I have found don't explain how to simply get the machine to make any marks on a piece of wood. They just jump into them using the machine without actually helping me get mine started. Trying to get a small sign business up an running with this machine but cannot seem to get the machine to do anything from the computer. How do you create a g code and how do you get the program to go from the computer to the actual cnc machine?