Time-Lapse Photography Skeinforge Plugin

Post with working links on my blog: http://eclecti.cc/bytes/reprap-controlled-time-lapse-photography

YouTube example videos:
http://www.youtube.com/watch?v=T3j5oXpqWCk
http://www.youtube.com/watch?v=GFZXgxcfdHQ

While capturing the time-lapse last week, John and I ran into two irritating issues. The first is that the moving platform causes the object being printed to come in and out of the focal plane of the camera and makes for a jarring video. The second is that because the interval between photos is constant, some large and slow layers will have multiple shots taken while several consecutive quick layers can be skipped entirely. The solution to both of these is to dynamically remote trigger the camera from the printer.

I wrote a Skeinforge photograph plugin that inserts a new G-code command, M240, which tells the printer to trigger a photograph. The module offers three modes. End of Layer, as demonstrated by Yoda below, is the simplest. It takes one picture at the st