Ed Nisley - KE4ZNU Softsolder.com)
LED Lighting for a Longboard, using a Hall effect sensor to detect wheel speed and an Arduino Pro Mini to control the LEDs.
Some details with links to earlier posts.
The Longboard Case.scad file contains the 3D geometry for the printed plastic case. It compiles under OpenSCAD to produce the Build?.stl files. Feed the STL files into a slicer such as Slic3r or Skeinforge to get the Build?.gcode files that will actually produce the printed objects.
The image files may not represent the current state of the 3D model source code; they're just snapshots along the way.