Additive manufacturing system having variable cure arrangement

A head for an additive manufacturing system, comprising:

• a nozzle configured to discharge a matrix reinforced with a fiber;
• a UV light source located adjacent the nozzle;
• and
• at least one additional light source located adjacent the nozzle, the at least one additional light source being configured to generate at least one of infrared light and blue light,
• wherein:
• the UV light source and the at least one additional light source are active at different times to create separate areas of illumination located at different sides of the head;
• and
• the UV light source and the at least one additional light source are also selectively active at the same time to create at least one overlapping area of illumination.

An additive manufacturing system, comprising:

• a support;
• a head mounted to the support and including:
• a nozzle configured to discharge a matrix reinforced with a fiber;
• and
• a plurality of light sources at least partially surrounding the nozzle and configured to enhance curing of the matrix, wherein at least two of the plurality of light sources are configured to generate light within different spectrums;
• and
• a controller configured to regulate operation of the support and the plurality of light sources.