this is for those ones who s already made cnc front panels with GLCDs:
if you have a GLCD in a 1.5mm front panel with a 3mm acrylic window, how will be make the aperture for the display: same as the display s screen as in the datasheet or slightly bigger and if bigger how much bigger?
… you have to calculate the parallax depending on the angle your display will have to your eyes in your most regular working positions. - You can use the Pythagorean theorem (… happy pythagorasing…eeehhhm calculating ;))