When you're getting started, in order to make sure that your Industrial CNC Router doesn't run into the side of the table, it can be a good idea to set up limits in your Mach 3 software for safety. In this post, I'll you how to set your soft-limits, which means that the software will stop the table automatically before this occurs.
*Please make sure that your motors are properly tuned before setting the limits or they won't work properly.
We could not write it any better than the one written by INSTRUCTABLES:
References : http://www.instructables.com/id/Setting-Soft-Limits-for-your-Industrial-CNC-Router/
So please visit them cos they are awesome :)