Gears that help transfer power from the actuator motor to electronic parking brakes in Audis, Bentleys and Bugattis are injection molded from Fortron linear polyphenylene sulfide (PPS). The electromechanical brakes are operated by a switch in the passenger compartment that activates actuators at the rear brake calipers. These brakes prevent a car from rolling on inclines as steep as 30 percent. They remain active until the car has enough forward speed not to roll back. The PPS spur gear within the actuator has a diameter of about 30 mm and is driven by a belt from an electric motor. The gear then drives a transmission that actuates the brake. The actuator housing is also made from an injection molded PPS body and cover. The housing size differs by car, but is generally 130 mm long, 50 mm wide and 80 mm high. The housing must withstand impact of stones propelled by tires and resists degradation from brake fluid and other chemicals used in cars. For more information on PPS gears, go to http://rbi.ims.ca/4933-519.
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.”
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