Chestnut Pens utility to create single or multipass lithophane GCode directly from images. Quickly adapt photographs and height maps.... FREE. FAST, EASY, VERSATILE.....

Can also generate basrelief gCode.. by changing source image grey values.

Download includes source code and help file. Link is below... look for 'Downloads' entry on left of the page... Several other CNC utils available.

http://www.chestnutpens.co.uk/misc/in...