Thanks for the analysis. Admittedly, I am in a bit of a rush to get the centerboard of my sailboat milled in time to go on vacation with it next month. From what you describe, it sounds like I will not need exact positioning. Although I still am very interested in learning how to set zeros, move the gantry, and have it return to zero when I play the job.
Starting to understand. Ordering some end stops today since it sounds like they will help with the precision control. Going to slow down my settings, and also test the supplied file tonight.
Thanks for everything man. You are as wise as you are patient.