Reciprocal Rack - Educational model

My Educational Mechanical Examples SeriesThis model is one of my educational mechanical mechanism examples on 80mm x 80mm base plates.You can find all models of the series in this collection => [Mechanical Mechanism Examples]This setThis model shows a reciprocal rack gear system, which consists of two trimmed rack segments on the upper and lower sides and a partial spur gear that acts as the pinion.Brief descriptionThis reciprocal rack gear system consists of two trimmed rack segments on the upper and lower sides and a partial spur gear that acts as the pinion. Since the pinion has only seven teeth out of what would normally be sixteen, it can mesh with only one of the two racks at a time.When the pinion rotates clockwise, it pushes the upper rack to the right and the lower rack to the left. Near the point where the rack’s motion switches from one direction to the other, the teeth of the pinion that are not engaged move in the opposite direction relative to the rack teeth. To prevent t