My Rollei 35T spends much of its time in a cabinet with a glass front. When it has film in it I cannot easily remove the light meter battery. So, I have printed a shutter to cover the meter when the camera is not in use, extending battery life.
If anyone else wishes to make one for themselves (not as a business venture) the .STL file is available here: link to files
Bruce
If anyone else wishes to make one for themselves (not as a business venture) the .STL file is available here: link to files
Bruce