The video shows how to generate a toolpath based on a 2D contour model (SVG). The following steps are described:
1) define a tool shape
2) configure an engraving process
3) set a bounding box
4) add support bridges
5) simulate the generated toolpath
6) store the resulting toolpath as a GCode file
Everything was done with PyCAM v0.5 (pycam.sf.net) - an open source toolpath generator for 3 axes machines.
BEWARE: due to a recent change in PyCAM you need to specify the "upper z margin" instead of the "lower z margin" (as described in the video).