Printing instructions - use white filament!
In case you want to do your own lithophanes, here is how I did it
3. Upload your image to 3dp.rocks - on top click “Images” and upload yours then move to “Model” where you choose the type (curved, flat..) and hit refresh.
4. All there is left to do is change “Settings” - I use the one below this paragraph. The most important is “Maximum size (MM)”, that changes the model size. After any change you need to click REFRESH in the model settings.
5. Download your STL file and put it into slicer
6. Enjoy!
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In case you have any requests, feel free to send me a message and I will try to help you out!