Additive technologies such as Selective Laser Sintering (SLS) or Laser Melting (LM) produce parts in a highly reliable quality at competitive prices. By packing models efficiently into the available build platform, even more efficiency can be achieved.
Like this, parts can be stacked inside each other at a minimum distance, and can be processed and manufactured in one go—without tools and without any further modification worries.
Another groundbreaking feature of additive manufacturing is the easy and fast production of highly complex parts with optimized geometry that only need material where required under stress. The complexity of the parts' geometry then has no or only a minor influence on production time.
Thus, once your parts show more complex geometries and lot sizes range between 100 and 1,000 parts, serial production is just made for you.