I have really big hands and fingers. The VFD for my bandsaw has a whole bunch of programing buttons on it that I never want to touch, as well as the on and off buttons, a dial to select saw speed, and a read out. Today I made a shield that covers up all of the buttons that are not on/off switches, and has a window in it for me to see the read out display, and left me access to the dial. Saw is working good, and I don't ever want to accidently press a button that changes anything in the programming.