My aim to to make a some what realistic iPhone 16 pro but its a calculator. I'm using a Casio fx-50FH II calculator and using these models printed on an fdm printer to create the cover. The buttons need tiny foam bits glued on the two indents and some conductive material should be glued or applied in the middle. Make sure to print the buttons in a high resolution (0.1mm) and the front panel/display to be properly sanded down or with in tolerance of 0.2mm