Ejector pins are the “bouncers” of the injection molding world. They let technicians apply a force to eject a part from the mold, and, in some cases, can leave marks. The goal for engineers and ...

Some of the most obvious cosmetic problems, such as sink marks, may not be caused by the most logical suspects. It was a quiet Tuesday afternoon until I heard a delivery truck pull up downstairs. In ...

Injection molded plastics have revolutionized design, innovation, and manufacturing in the 20th century. Before 1950, most products were manufactured in stamped steel, die-cast aluminum, zinc, and ...