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Dan Roe.  Trilobot (2008-2009)
Solar engine, steel, 10
" x 7 1/2" x 3 1/2".

Description: This minimally designed sculptural robot is entirely solar powered, so it's autonomous in energy acquisition.  It is also autonomous in control since its compound eyes differentially control rostral and caudal legs producing a weak phototropism, while its sensitive motors respond unpredictably to one another and to the surface they are moving over. 

The offset legs, while counter-intuitive from an engineering perspective, helped this creature in tests to move over cracks and other terrain by working with its naturally chaotic movements while climbing out of trouble spots.

This sculpture is designed with open source BEAM 1381 solar engine circuits and off the shelf technologies (including o-rings and hose clamps).