I met with the scanner team last week. We discussed options for creating Nathaniel's SCUBA scanner system (I will upload notes from this meeting soon). At the end of the meeting, Nathaniel gave me a HP Scanjet G3110 to take apart. I worked on taking it apart carefully on Friday night and in an hour or two, I had everything stripped down to it's components. I did discover that the HP board has a built in start up sequence that "zero's" the scanning sensor. This is done by a limit sensor that is mounted to the main circuit board and a small plastic piece that hangs beneath the scanning sensor head slides in between this sensor to break the signal. The motor that drives the axis will run until this is tripped and then bounced off a certain distance to set the "zero" starting point. Today, I worked on modeling all of the key locations of the components in Rhino 3D modeling software, so I can create a simple proof of concept model for a sealed watertight submersible housing for the scanner components. In the next week of so, I am interested in getting power supply units (batteries), and additional hardware that I can start to configure into a sealed unit with all necessary components. For the time being, I will work on just the scanner portion, in an attempt to design something that eliminates the stock scanner housing and puts the components into a slim housing. A breadboard model with working scanner components is next on the agenda.
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