I made this beer can lithophane as a 3pc print to make it easy to print. I did use supports but just on the bottom and top easy to remove. And I used 100% infill for the litho part and just 20% for top and bottom. I also used cura with the ArcWelder seems to smooth out everything. Also I did not make any openings for light I was thinking people might have their own lighting they would like to use I just cut out the track you see here after it is only pla. But if you use something like you see here always use LED light