A baler having a frame, a feed system coupled to the frame, a baling chamber for receiving crop from the feed system, and a plunger assembly reciprocally compressing the crop. The baling chamber defines an extrusion axis therethrough. The plunger assembly is at least partially positioned within and movable with respect to the baling chamber. The plunger assembly has at least a first plunger motion aligned with the extrusion axis. The baler also includes a feed system cap having at least a first cap motion aligned with the extrusion axis, the first cap motion being synchronized with the first plunger motion. At least one of the plunger assembly and the feed system cap has a second motion that is not aligned with the extrusion axis.
