Blog | Xcentric Mold & Engineering

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Improve Plastic Injection Molded Parts with Draft

August 30, 2018

Draft is an angle incorporated into your plastic part design to aid in the ejection process. Include Draft Upfront in the Design Process Plastic parts should be designed with draft to prevent sticking and ejector pin push marks on the outward surface during ejection. Applying the proper draft angles or tapers on the surface of […]

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Overmolding Tip: Save Time & Money

August 23, 2018

Overmolding is a process where a single part is created using two or more different materials in combination. The first material, often referred to as the substrate, is partially or fully covered by another material (overmold material) during the manufacturing process.  A wide range of materials are capable of being overmolded, including both hard and […]

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Case Study: Celling Biosciences Receives Complex Parts for a Cellular Therapy Device in 30 Days

August 16, 2018

Medical and scientific devices pose three key challenges for companies like Celling Biosciences: time, quality, and cost. On one hand, to build a reputation for leadership in the closely watched biotech industry, you have to launch innovative products before your competitors can do likewise. On the other hand, if you can’t manufacture high-quality injection molding […]

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Product Material Selection That Ensures High Quality Parts

August 9, 2018

There are many elements that influence the plastic injection molding manufacturing process. A key component to this process is the material used to create the part itself. There are numerous thermoplastic resin material options that are available for plastic injection molded parts. The content of these materials will directly affect part production. It will impact […]

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Get A Free Surface Finish Guide

August 2, 2018

The surface finish of an injection molded part is a critical feature that directly effects the outcome of your product going to market. Whether an internal or external part, the finish can range from a rough textured surface to a fine polish.  Sometimes cosmetic treatments also play a role in its outcome. Engineers and Product […]

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Meeting Time to Market Deadlines with Complex Insert Molding

July 27, 2018

What is Insert Molding? Insert molding is sometimes utilized in order to get parts to market faster.  It is a process in which plastic is injected into a mold that contains a pre-placed insert. The result of insert molding is a single molded plastic piece with an insert surrounded by the plastic.   Insert Molding Process The insert molding process begins with the placement of inserts in […]

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Designing for Plastics

July 19, 2018

The success of your plastic part relies upon many key elements working simultaneously. There are many factors that influence the outcome of your plastic part and should be taken into consideration when designing with plastics as follows: • Draft Angles • Wall Thickness • Fillets and Radii • Bosses • Ribs • Holes/Depressions • Shrinkage […]

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Quick Reference Guide for Injection Molding Part Design

July 13, 2018

Designing your part for the plastic injection molding process can sometimes be a challenge. Refer to our quick reference guide below featuring some best practices for plastic injection molding part design. Consider the following “checklist” as a baseline to meeting your part expectations. Interested in obtaining more advice? Reach a Technical Engineer at  or call (586) […]

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Adding Injection Molding Features to Your Part

June 27, 2018

There are several features that can be added into your injection molded part. And before we cover specific features, if you are less familiar with Rapid Injection Molding, the Injection Molding Process, or Injection Molding Basics please read the next section. Rapid Injection Molding Rapid injection molding is possible when a manufacturer has developed sophisticated […]

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Avoiding Injection Molding Pitfalls

June 25, 2018

Before we jump into injection molding pitfalls you should avoid, here’s a quick review of the Injection Molding Process, Injection Molding Basics, and Rapid Injection Molding. What is Injection Molding Plastic resin pellets are loaded into the hopper, where it travels into the barrel of the injection molding machine. Through both heat and pressure, the […]

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