I have moved on for now from testing the various components of my harp and begun the process of packaging the components. Pictured above is the rough layout of the different pieces and their power sources. I was able to arrange the components in such a way that they fit in the given space of the box. On the left is a power strip that the multiple power sources plug into. In the top left corner, the board is cut to make room for the fan that is going to be installed for cooling. The perforated circuit board in the top right will be populated with the circuit components that produce dual + ~ - 5 VDC signals required to drive the galvanometer's controller board.  The board below that is the Arduino. To the left of both of these boards are the relays that will be used to turn the laser power source on/off and drive some indicator lights together with the foot switches for my laser harp. The silver box with holes is the power supply for the galvanometer controller board, which is the component directly above the silver box.

The black wood board pictured in a previous blog will act as a shelf, covering this bottom layer of components. On top of that shelf, the galvanometer and laser source will be mounted.