Litophane holder

I made a small holder for litophanes. I made those for my christmas presents this year, if you want to print it for christmas it's probably too late, but there is also a christmas next year

Printing Instructions:

I used black PETG, no supports needed. Since the LEDs get a bit warm, i wouldn't recommend PLA, but I guess it works too.

You need to print the front frame, back part and 4 of the little pins.

Litophanes:

To convert an image into an stl file, I use https://itslitho.com/

Make sure the size is 160x120 mm, you can leave the rest as it is. I usually make the frame thinner.

For printing, I just place it flat on the build plate in prusa slicer, 100% infill, 0.1 mm layer height. It takes around 10 hours, depending on the image.

Electronics:

I used the following components:

LED Strips: https://secure.reichelt.com/ch/de/led-streifen-kaltweiss-5000-mm-opt-st4801-p235898.html?&nbc=1

Button (12mm metal button switch Locking Latching, flat head): https://de.aliexpress.com/item/32949015301.html?spm=a2g0o.order_list.order_list_main.91.30795c5fDe7mjB&gatewayAdapt=glo2deu

Plug (DC-022B 5.5x2.1mm Female power socket): https://de.aliexpress.com/item/1005009885221878.html

Power supply: https://secure.reichelt.com/ch/de/steckernetzteil-18-w-12-v-1-5-a-stabilisiert-vt-3237-p215626.html?&nbc=1

Assembly Instructions:

Some soldering and electronic knowledge is required. It is pretty simple, but since im no expert, i will not give a detailed explanation. Please learn it somewhere else.

Connect positive pin to button, then to all positive dots of the LED strips, then connect all negative to the negative pin.

I used 3 LED strips, 10 cm each, they were self-adhesive, so I just put them on the back of the box. 

 Changelog:

• 15. Mai 2026: Replaced inactive link for plug from aliexpress, search terms added in description.