Permanent-magnet stepper and gear motors range from 15- to 60-mm in diameter, provide step angles of 1.8 and 3.6 degrees (hybrids), and 3.6, 7.5, 15, and 18 degrees (permanent magnet). Both motors come in standard industry configurations for drop-in replacement. Stepper Motor Handbook includes specification sheets, a quick reference chart, and a tutorial on stepper motor technology. In addition, application notes, formulas, and terminology are included.
Thomson Industries Inc., 2 Channel Dr., Port Washington, NY 11050, FAX (516) 883- 9039
These new 3D-printing technologies and printers include some that are truly boundary-breaking: a sophisticated new sub-$10,000, 10-plus materials bioprinter, the first industrial-strength silicone 3D-printing service, and a clever twist on 3D printing and thermoforming for making high-quality realistic models.
Ear-based heart-rate monitoring gained momentum recently, as sensor maker Valencell Inc. announced it has licensed its biometric earpiece technology to Samsung Electronics Co. Ltd for use in so-called “hearable devices.”
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
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