Hi i own a shopbot cnc mill. using mach 3.
i had some problems with my computer hard drive and lost mach3
i set up another computer installed and set up tuning xy and z also zero plate setting.
everything worked.
i then tried to run a file the z axis drove to the top and slammed into the stop.
i tried other files same problem.
also reinstalled everything same problem/
also tried another computer same problem.
once this happen the zero plate does not work anymore.
bit comes down hit plate does not move up.
i wonder if this can be a controller problem.
hope someone can help
paul