An off-axis prepreg material manufacturing machine may include a robot configured to position a prepreg piece adjacent to an end of a prepreg layer. The machine may additionally include an alignment system configured to sense a position of the prepreg piece relative to the prepreg layer and generate a position signal representative thereof. The machine may also include a controller configured to receive the position signal and cause the robot to adjust the position of the prepreg piece such that an end edge of the prepreg piece and an end edge of the prepreg layer are in substantially abutting contact.