PK-M Series sizes 17 and 23 high-torque, hybrid step motors offer step-angle resolutions of 0.9-degrees full step and 0.45-degrees per half step. The motors also maintain holding torques of 22 to 44.4 oz-inches for the size 17 and 54.2 to 187.5 oz-inches for the size 23. The PK-M Series higher-step resolution results in an unloaded step accuracy of 0.05 degrees. Running torques of 20 oz-inches at 2,500 pps are developed for the smallest PK-M model, the PK243M-01BA, and up to 175 oz-inches at 1,100 pps for the largest PK-M family member, the PK268M-03BA.
Oriental Motor USA Corp., 2510 W. 237th St. #102, Torrance, CA 90505, FAX (310) 325-4146.
If you see a hitchhiker along the road in Canada this summer, it may not be human. That’s because a robot is thumbing its way across our neighbor to the north as part of a collaborative research project by several Canadian universities.
Stanford University researchers have found a way to realize what’s been called the “Holy Grail” of battery-design research -- designing a pure lithium anode for lithium-based batteries. The design has great potential to provide unprecedented efficiency and performance in lithium-based batteries that could substantially drive down the cost of electric vehicles and solve the charging problems associated with smartphones.
Robots in films during the 2000s hit the big time; no longer are they the sidekicks of nerdy character actors. Robots we see on the big screen in recent years include Nicole Kidman, Arnold Schwarzenegger, and Eddie Murphy. Top star of the era, Will Smith, takes a spin as a robot investigator in I, Robot. Robots (or androids or cyborgs) are fully mainstream in the 2000s.
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