Lithophane Creator

Lithophane Creator

Lithophane Creator is a static HTML5 application which means your images are not uploaded anywhere. They are loaded locally on your computer and after processing, an STL file is generated.

Preparing the image

There are two things you can do to improve your lithophane:
Scale the image between 1000 to 1500 pixels in the longest direction (greater if your lithophane is really big) Too much resolution (e.g. 4K) will create unnecessarily detailed geometry and could be unmanageable by the app.
Smooth your image in an image editor program. The smoothing prevents the nozzle from hard movements originating from image noise and reduces the chances of a print failure. If you’re using GIMP, the “Selective Gaussian filter” works great, because it smoothes without blurring the sharp edges.

Creating the lithophane

  • Just click on the “Load image” button, select the image stored in your computer and after a few seconds, a preview will be shown.
  • You can change the parameters to change the shape and size of the lithophane and invert the image colors.
  • At the bottom right corner of the screen, you will see info about image resolution, lithophane bounding box in mm, and a number of mesh triangles. Also, a small preview of the image will be shown in the lower-left corner of the screen.
  • You can activate the option “Realistic rendering”, and the lithophane will be shown like it is lighted from the back.
  • When you’re done, click the “Export STL” button and after a few seconds, an STL file download will appear. Save it to your computer and prepare to print!

The shape parameters

Lithophane width (mm)
This is the distance in mm from the leftmost to the rightmost part of the lithophane.

Min. thickness (mm) and Max. thickness (mm)
These are the minimum and maximum thickness of the lithophane. The minimum corresponds to the lighter parts and the maximum to the darker ones.

XY angle
This angle controls the curvature along the XY plane. When its value is 0º, the lithophane is planar. When it is 180º, the lithophane is a closed cylinder. Values in-between give you a lithophane shaped liked a curved roof tile.

Z top angle, Z bottom angle
These parameters control the curvature along the Z-axis. When they are equal the lithophane is a vertical wall. When not, they are the bottom and top angles of the lithophane in a sphere, being 90º the top, 0º the middle, and -90º the bottom of the sphere. Keep in mind that these parameters can generate lithophanes that are not 3d printable (they would fall off while printing), adjust them wisely. If the bottom angle is greater than the top angle, they are switched internally.

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