This platform runs on a rolling ring drive and reciprocates automatically without motor reversal. Linear speed can be adjusted on the fly with a control knob on the assembly, without changing speed or reducing gears. No electronics or programming is needed - speed and travel direction are controlled mechanically. The platform is low maintenance, with no hydraulics or pneumatics, and only a light shaft lubrication once every three months in the linear drive. Adjustable end stops can increase or decrease length of travel. Precision-machined components limit vertical and horizontal platform movement to within ± 0.001 inches, and rolling ring bearings compressed against the shaft inside the drive make for zero play and backlash-free motion. A modified reversal mechanism makes for smooth, jarring and jerking-free reversal.
Researchers have been working on a number of alternative chemistries to lithium-ion for next-gen batteries, silicon-air among them. However, while the technology has been viewed as promising and cost-effective, to date researchers haven’t managed to develop a battery of this chemistry with a viable running time -- until now.
Norway-based additive manufacturing company Norsk Titanium is building what it says is the first industrial-scale 3D printing plant in the world for making aerospace-grade metal components. The New York state plant will produce 400 metric tons each year of aerospace-grade, structural titanium parts.
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