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   |  | The CSO
   consists in part of a 10.4 meter primary mirror designed by Robert
   Leighton.  The dish has 84
   hexagonal panels made of aluminum epoxied onto a honeycomb backing that is
   mounted on a steel backing structure. 
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   |  | This is an
   attempt to display the engineering challenges put forth by the sheer area
   and numbers of this system. 
   There are 99 standoff assemblies consisting of a bracket, thermistor,
   Peltier device, and heat exchanger. 
   Along with that comes (198) thermistor wires, (198) Peltier device
   wires, and heat exchanger coolant lines. All routed on the backing structure
   of the dish. 
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   |  | 
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   |  | The electronics
   are housed in 3 racks seen on the right.  The shorter center rack houses the 99 Channel DSOS
   Controller.  The 2 taller racks
   house the Driver units.  Each
   Driver rack contains 2 Driver units along with their power supplies. 
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   |  | 
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   |  | The different
   colored lines indicate the different quadrants.  I split the dish into 4 quadrants for Driver and heat
   exchange purposes. 
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   |  | Wiring and
   plumbing were routed to distribute the weight of the material as evenly as
   possible on the backing structure. 
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   |  | The blue and
   red dots indicate the inputs and outputs, respectively, of the coolant
   loops. 
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   |  | ~Melanie Leong~ 
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