This unit is all about getting data from a project. Neil touches on some interesting applications - the video part was particularly interesting. But since time is pressing, this weeks project will be using the RGB example which is while relatively straight forward does have a challenging soldering element.
This module has been finished but not documented.
Add stuff that would be cool to investigate when time and resources permit.
This article discusses in great detail PCB milling with loads of information on V-engravers.