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VOLUME 6 3 • NUMBER 09 How CT Scanning Can Cut Your Product-Development Time Computed tomography x-ray scanning offers molders a wide range of benefits, often saving them hundreds of hours during the processes of mold building, mold tryout, and first-article approval. Here's what you need to know. By Barry Rogers Alpha Strategies On-Site A Culture Built on Innovation in Medical Tubing Extrusion Microspec was born out of innova- tion, and 28 years later continues to set the global standard in medical tubing by developing high-precision multi-lumen catheters—among other tubing products—by refusing to believe "it can't be done." By Jim Callari Editorial Director 58 54 40 How Low Can Low-Rate Feeders Go? More and more processors are looking for greater precision from their feeding equipment. Read here what some are doing about it. By Tony Deligio Senior Editor 4 FROM THE EDITOR 6 STARTING UP CLOSE-UP 12 Blow Molding 16 Materials 22 Additive Manufacturing KNOW HOW 26 Materials 30 Injection Molding 34 Extrusion KEEPING UP WITH TECHNOLOGY 62 Injection Molding 64 Extrusion 64 Compounding 64 Thermoforming 75 Recycling 75 Materials Handling 76 Blending 77 Additive Manufacturing 77 Testing 79 Automation 79 Materials 82 Additives 83 Tooling YOUR BUSINESS 87 Resin Pricing Analysis 89 Plastics Business Index 90 Market Watch 91 Marketplace 96 Processor's Edge How Repeatable is Repeatability? Process repeatability is not a constant, but varies over time in response to a number of variables. The only way to manage that variation is with process controls that adjust each and every cycle. By Josef Giessauf and Christian Maier Engel Austria 46 Feature Tips and Techniques Tips and Techniques PTonline.com 1 Plastics Technology