How to make Cylindrical Reliefs for objects like lithophanes.

With PhototoMesh you can create the STL files which, with the help of modern 3D printers, create cylindrical objects like this:

A screenshot of PhotoToMesh is shown below, with the settings for creating a cylindrical STL file:

When you are happy with the settings simply use the File | Save as Dxf or STL file item:

Here's one another real life example from Satoshi Uchiwo:

You can also use surfaces of revolution...

There is a free demo so you can try your own images and your own printer hardware. Click on the link below to download it: