LithoFlash

compact viewer for 3d printed lithophanes. File should be printed first 3mm in white, balance in black or other solid color. uses almost free harbor freight LED flashlight. Folded optical path places the hot spot of the single LED element behind the view plane for a very uniform backlight.

Lithophanes should be printed at 10:8 aspect ratio with a 75mm max size with free app 3dp.rocks