First question, Bernie, is how easy will it be to access and work on the DC unit if it's under your CNC? Seems to me that would be inconvenient. Second question - what will you be cutting (primarily)? If it's small pieces or easily manageable pieces then the height is whatever is comfortable to you. But if you're going to be working with large slabs then the higher it is the harder it is to lift it onto the table.
David
David