20 Jul 2016

Rex Plastics Product Development Plastic Part Design Fundamentals Gates and Parting Lines   Gates Each plastic part design must have a ‘gate’, or an opening that allows the molten plastic to be injected into the cavity of the mold. There are several styles of gates that are commonly used in molding. Care and consideration should […]

27 Mar 2016

Rex Plastics Product Development Plastic Part Design Fundamentals Ribs and Bosses Rib Design Ribs are a great way to add strength and stiffness to a part while keeping material consumption to a minimum. However, a word of caution:  ribs can cause sink marks to develop where they intersect the main wall. A rule of thumb […]

17 Jun 2015

Rex Plastics Product Development Plastic Part Design Fundamentals Injection Molding Plastic design is the building block of plastics manufacturing, and can make or break not only the initial investment required to get a product launched, but the long term profitability of that product. In this series we will discuss the fundamentals of this very important […]

15 Jul 2013

Custom injection molding is among the least expensive processes available for producing large quantities of parts. Due to the initial investment of the mold however, there is a return on investment that needs to be considered when making the decision on what type of process to use. If you anticipate needing tens or perhaps even […]