This project is just in the research phase, although I have purchased most of the required materials. 

These are the pages I'm using as reference:

• https://www.themakersphere.com/3d-printed-lithophane-lamp/

• https://wiki.bambulab.com/en/knowledge-sharing/CMYK-color-lithophane-printing-instructions

• https://us.store.bambulab.com/products/pla-cmyk-lithophane

• https://us.store.bambulab.com/products/petg-translucent?srsltid=AfmBOooIZh50lWefhR8F_ruskx1v5GDzG2eSOyfqouKeDL89SSspfPXr&id=42479468281992

One consideration that I have is that I was planning on trying to print the entire image in a single print with the Snapmaker UI, but the recommended print head is 0.2mm.  The Snapmaker U1 comes with 0.4mm print heads, and they don't offer the 0.2mm print heads at this time.  I have my Snapmaker A350, and a Prusa MK2S that I could resurect for this project.  I need to figure out what might be the best path forward.  Regardless I'll likely do a test print using the 0.4 that's already on my Snapmaker A350, or perhaps just wait for a 0.4 print on the U1.  Either way, it should be fun.