13 Feb 2016

Fundamentals Of Plastic Part Design Part 2

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 […]

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12 May 2025
A CNC router works on a piece of wood.

CNC Routers, Mills, and Lathes: What Are the Differences?

If you’re researching CNC machining options for your next project, you’ve likely come across several different tools — namely the CNC router, CNC mill, and CNC lathe. Each of these machines plays a key role in manufacturing and prototyping, but they differ in capabilities, ideal materials, and applications. In this article, we’ll break down the […]

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14 Apr 2025
An upturned, opaque plastic food tray on a wooden table.

Thermoforming vs Injection Molding for Your Project

When you’re planning a new plastic product, choosing the right manufacturing method is critical. Two popular options are injection molding and thermoforming. Each process comes with its own strengths, costs, and design capabilities — so picking the right one can make all the difference in your project’s success. In this guide, we’ll dive into what […]

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27 Mar 2013

The Value of Plastic Part Design

While a change to a product after launch can be quite expensive, making changes during the design stage is relatively inexpensive. Plastic part design is no exception. With today’s CAD software, it has never been easier to visualize, test, and modify designs. The Cost of Change    A well-designed plastic part involves numerous variables that […]

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17 Jun 2015

Fundamentals Of Plastic Part Design Part 1 – Injection Molding

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 component […]

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08 Jul 2024
A twenty dollar bill slithers through two metal gears. The number 20 on this US dollar is clearly visible.

How Do You Scale Up To Production Cost Effectively?

Scaling up to production cost efficiently involves optimizing processes and minimizing costs without compromising quality. By carefully planning each step and leveraging the right resources, you can achieve a seamless transition from prototype to full-scale injection molding production.   Is injection molding expensive? Injection molding can be perceived as expensive due to the initial costs […]

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02 Oct 2013

Custom Plastic Products’ Role in Our Nation’s Recovery

Custom plastic products are an integral part of this Country’s economic development and recovery. There is no more versatile material on the planet for use in electronics, medical, automotive, defense, consumer products, toys, and the list goes on. The inventors and entrepreneurs this country generates are well served by considering plastics for a broad range of applications.

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27 Dec 2018
A myriad of medical devices and equipment placed on a table.

Medical Injection Molding: Plastic Injection In The Medical Industry

We have five decades of experience but are always looking for new and revolutionary ways for businesses to better utilize their products. For Rex Plastics, one example of this is the medical industry’s use of plastic injection molding. The accuracy of injection molding plays a critical role in achieving high precision and reliability in medical […]

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26 Aug 2019
Horizontal color image of molding machine part.

An Introduction to Hot Runner Systems in Injection Molding

Since its inception in the 1960s, to its acceptance in the 1990s, the hot runner system has challenged tradition across the plastic injection molding business. With their increased cycle speed and decreased waste, hot runners are an attractive solution to many looking to diversify their injection molding process.   What is a hot runner injection […]

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16 Aug 2021
Three plastic cases rest on top of a stack of more plastic cases

How to Mass Produce a Product | The Ultimate Guide 

Understanding Mass Production Mass production is the backbone of modern manufacturing, enabling companies to produce large quantities of products efficiently and cost-effectively. This production method involves the use of standardized processes and assembly line techniques to create identical items on a large scale. By using mass production systems, manufacturers can meet high demand, reduce labor […]

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