This is a holder for the lithophane made by mjgonsow available as https://www.thingiverse.com/thing:3454896

There is a gap for a curved lithophane, radius of curvature 80mm and height 120mm, spanning 120 degrees, with about 2mm extending in on all sides. I actually printed this combined with the lithophane so it came out as a single object.

The base snaps on easily and holds lightly, and the base fites into a lamp I bought for this purpose. There are ventilation slots so air gets in to cool the bulb if needed (I use a bright led bulb, just over 1500 lm.

Bambu P1S

No

No

0.16

15%

Inside was painted white to reflect light better.