Watch an instructional video on how to use the website here: https://youtu.be/RNzZRBL3oT0
This channel is full of instructional videos on how to use each of the tools: https://www.youtube.com/channel/UCU13fzqAu4BTAhOSHJgHRqg
Create a framed lithophane in seconds with the tools at https://LithophaneMaker.com. Perhaps the lithophane's most useful feature is the frame that surrounds the lithophane. This frame makes the lithophane easier to 3D print without it wobbling during printing and falling over. The second feature is made possible by the frame, and that is the tunnels (holes, whatever you want to call them) that go diagonally through the frame's top right and top left corners. Twine or thread can be put through these holes to allow the lithophane to hang from suction cups or whatever else you'd like. There's no doubt that there are many options for twine, thread, and a hook of some kind, but I've used the options that can be found here: twine and suction cups.
Okay, so what do you need to know to use the picture to lithophane stl designer?
The size of the lithophane is determined by the base length that you enter. I used this as the sizing metric, because it is most likely the side that will be printed on the bed, and it's probably the dimension that is limited by your printer. The height of the lithophane will depend upon the aspect ratio of your picture and the base height and ledge angle that you select.
The frame's size is controlled with the base height, base width, and ledge angle parameters. The schematic shows pretty clearly what these variables are, and you can imagine both cross sections of the hanging lithophane to be the same. That is to say: if you took a xy plane cut or a xz plane cut of the lithophane you would see the same thing. The ledge angle should be set to whatever angle you're comfortable printing for an overhang, because the ledge angle will be an overhang where the top frame goes to the lithophane image.
The maximum thickness is the maximum thickness of the lithophane image and the minimum thickness is the thinnest point in the lithophane image. That's pretty self explanatory. Just like in my other tools, the aspect ratio is for the design tool's visualization capability and does not actually define the final lithophane's aspect ratio. The final lithophane's aspect ratio will be the same as the aspect ratio of the image that you upload.
If you see any way to make this tool better, please email me at email@example.com!