I've made a couple of these for friends and family and they all loved it.
You can print the 4 lithophanes and the base as one piece by merging the parts into one single model.
You can also print the parts individually and glue them together. I've uploaded a small cover stripe so you can cover the gap between the lithophanes like I did in the pictures I've uploaded.
You'll need:
4 (different) lithophanes
I've used the following site to create them: http://3dp.rocks/lithophane/
Make sure to use pictures with a 1:1 ratio and on the website select "outer curve" model and set your model settings to maximum size 100mm, thickness 3mm and border 3mm
Also choose "positive image" in the image settings
Mini USB LED with magnet (or similar)
I've used this one:
[Aliexpress] https://shara.li/c/E93E5UINnp (affiliate link)
[Amazon DE] https://www.amazon.de/dp/B01K7SEM3K/ref=as_li_ss_tl?ie=UTF8&linkCode=sl1&tag=amzdeal0e-21&linkId=6b1178adff9ed980b9d3867bb1c054f8&language=de_DE (affiliate link)
Superglue
| base.stl | 180.0KB | |
| cover_stripe.stl | 1.4KB | |
| top_bubbles.stl | 380.7KB | |
| top_heart.stl | 97.9KB |
