More about the Spine Robot here
January 2015 - Spine Robot Mobile Platform
August 2013 - Hydraulic hose guides
June 2013 - Extending Spine Robot Reach and other Improvements
August 2011 - Spine Robot Fully Assembled with Scoliosis-Free!
June 2011 - Spine Robot spacer specs
May 2011 - Assembly of Spine Robot with urethane washers
January 2011 - Work on the actuator to correct scoliosis effect
June 2010 - Titanium 6AL-4V AMS 4928 bushings for spine segments
March 2010 - Mark builds the Spine Robot