Since its 2003 launch, Protomold's Design Tips monthly e-mail newsletter has been a popular and useful resource for our customers. Now available in four handy, downloadable volumes. Each compilation features useful tips, advice, and guidelines on everything from selecting materials to designing parts efficiently and cost-effectively. Catch up by downloading volume 4 today. In this volume: Fun with Cams; Living in the material world; The orphan fillet; What you don’t “C” can’t hurt you; When you really need to dodge the draft; Night of the living hinge; Good vibrations – ultrasonic welds; Resist that sinking feeling; The inside scoop on outside threads; Sliding shutoffs; When things get rough…