Re: Using mill table manually,, mach3 DRO readout
i have a pendant controller for my mill that lets me do manual milling under Mach3 control - they're not all that expensive....you might check it out.
If you're talking about some occasional simple milling that you don't want to take the time to set up for cnc, you can always use one or two long travel dial indicators with mag bases,
As others have said, you won;t be able to easily turn the screws against the stepper's holding torque so you'll likely need to unplug the steppers to mill manually.. Also keep in mind that if your machine has been converted to ball screws, they don't have the friction of the standard screws and will move much easier - even when you don't want them to.
Personally I like the pendant approach. It takes a little getting used to, but lets you manually mill quite effectively with the advantages of still operating under Mach3 control.
Meddle not in the affairs of Dragons - for thou art crunchy and taste good with ketchup!