This forum can help you, I personally am not familiar with the Gerber machine.
You want to be able to control the machine using two different controllers.
So you need to understand both controllers. I know nothing about Gerbers.........also have no desire to search for the correct manuals / information.
So I would suggest you have a look at the available Mach videos, manuals, etc to get a flavor of Mach software.
To configure Mach you need to provide detailed information about your machine.
- Drives, motors, sensors, etc
- Mechanical aspects of how the axis is driven,
- Spindle info and how controlled / wired
Mach uses the configuration for control basics, inputs / outputs, etc. and quite configurable.
Post all info and review for completeness before posting. You will get a better response if folks don't have to do any leg work.
RICH