One of the main components in transmitting motion in the REV ION Build System is 1/2in Hex (hexagonal, six sided) shape. Featured in components where a MAXSpline is too large or when motion needs to be directly transmitted to a 1/2in hex shaft. 1/2in Hex shafts are available in a number of different lengths and can be cut to length if needed. Another important shape for transmitting motion in the REV ION Build System is the MAXSpline. This shape is incorporated into the other main motion components such as: MAXHubs, sprockets, gears, wheels, pulleys, and MAXSpline shaft.