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 […]
Plastic Injection Molding Costs One of the most difficult obstacles preventing product developers from having their product injection molded is the initial tooling investment. At first glance, many product developers form the conclusion plastic injection molding is too expensive. These folks are placing more importance on short term needs, most likely during a prototyping phase, when […]
When to Consider Plastic Injection Molding Plastic Injection Molding is a diverse process with many possibilities. Often, the precision and repeatability of plastic injection molding makes it a viable alternative to machining. As a rule of thumb, if you are using 1,000 or more parts per year, you may want to consider plastic injection molding as […]
“Robust productivity has helped the United States keep down the unit cost of labor—or wages in relation to worker output”
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 […]
2016 Gold Prospectors Association of America Gold and Treasure Show April 9-10, 2016 Portland Expo Center, Portland Oregon Rex Plastics Makes Plastic Parts for Gold Prospectors Rex Plastics will be showcasing our product design, prototyping, injection mold building, and plastic injection molding production services at the 2016 Gold Prospectors Association of America’s (GPAA) Gold and Treasure […]
“Rex Plastics was very helpful in the product development process. They helped me with part design, material selection and made many improvements to the sample product I originally brought them. In fact, the design changes their engineer suggested literally cut the injection mold cost in half.” says Tom Arnold, owner of Powder Cord Pouch.
Rex Plastics Product Development Plastic Part Design Fundamentals Sink and Warp Plastic Part Design – What is Sink? Part manufacturers should always give careful consideration to the materials used in plastic part design, as this decision will have significant consequence in the sink & warp of plastic injection molded parts. Why is this? During the […]
Rex Plastics Product Development Plastic Part Design Fundamentals Draft Angle In this edition of our Product Development series, we’ll briefly overview a fundamental concept for plastic part design, ‘draft angle’. Draft angle, or ‘draft’ is essential for all plastic injection molded products. It facilitates the removal of the part from the mold. Adding draft […]
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 […]
Do you need design-for-manufacturing (DFM) assistance?
Or, are you ready for production?
We have a full suite of services to offer and a lifetime mold guarantee.
