A delta robot is one that uses 3 motors to drive three sets of arms. Each arm is connected to a moving platform through a parallel set beams. The hinges between the arms, beams and moving platform are usually the complicated part of designing such a mechanism. Hence usually one must either contend with significant backlash, or buy expensive joints. In a traditional delta linkage there are 12 ball joints, or in the revolute only version, 24 revolute hinges. My design uses a special method to avoid buying joints entirely. Drastically reducing the cost of a good quality linkage and the skill required to assemble is also reduced.
Date:Posted By:user