I design and built Blizzard in 1979 as and edition of 75. It was one of the first sculptures I built using ball bearings. This is a weight drive sculpture using two independent mechanisms.
Each mechanism drives its own patterning wheel. The mechanisms operate at slightly different speeds so the wheels go in and out of phase. This was an early attempt to add constantly shifting patterns to my sculptures.
The sculpture runs very quickly but is quiet relative to my earlier pieces. It took several additional years of work to develop mechanisms that allowed me to control the pace of the motion.