Motion Control

Nano-Motion Stages Rely on High-Precision Encoders for Accuracy and Repeatability

ALIO Industries designs and builds very high precision automation stages for nano-level manufacturing and research applications, including microlithography, medical devices, and micro-machine tools. In this world where a misalignment of one micron might as well be one meter, Renishaw encoders have played a vital role in the performance of ALIO's True Nano™ and 6-D Nano Precision™ motion systems (Figure 1).

Posted in: Application Briefs, Motion Control
Read More >>

Wireless Magnetic Field Powers Folding Robots

Folding robots based on origami have emerged as an exciting new frontier of robotic design. However, they generally require onboard batteries or a wired connection to a power source, making them bulkier and clunkier than their paper inspiration and limiting their functionality. A team of researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and the Wyss Institute for Biologically Inspired Engineering has created battery-free folding robots that are capable of complex, repeatable movements powered and controlled through a wireless magnetic field.

Posted in: Briefs, Motion Control
Read More >>

Harmonic Air Motor Offers Very High Efficiency

Currently available air motors have many advantages over electric motors. They are more compact, lighter-weight, instantly reversible without sparking, create no heat buildup, are undamaged by stalling or overloading, and supply extremely broad torque and speed range. Generally available commercial air motors, however, have only 5% to 20% of ideal efficiency. The Harmonic Air Motor developed at Lawrence Livermore National Laboratory has all these advantages of air motors, but also offers a proven efficiency more than 60% of ideal, higher low-end torque than available commercial air motors, and can be manufactured at lower cost.

Posted in: Briefs, Motion Control
Read More >>

Origami Techniques Expand Compacted Spacecraft

Origami has once again inspired engineers at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California. Besides aesthetic beauty, the Japanese tradition of paper-folding addresses a persistent problem faced by JPL engineers: how do you pack the greatest amount of spacecraft into the smallest volume possible?

Posted in: INSIDER, Aerospace, Joining & Assembly, Motion Control
Read More >>

Self-Folding Electronics Could Enable Advanced Robotics

MIT researchers have developed a way to print flat electronics that can fold themselves into a desired shape. The researchers say the development could have applications in robotics and human-machine interfaces.

Posted in: INSIDER, Electronics, Motion Control, Robotics
Read More >>

Webb Telescope Actuators Move with Microscopic Accuracy

The James Webb Space Telescope will be the most powerful space telescope ever built. With a 21-foot diameter, the telescope’s primary mirror is six times larger than the one used by the Hubble Space Telescope. In order for such a large mirror to travel into space, it has to be broken up into multiple segments; in this case, 18 of them. But for the 18 to act as one primary mirror, they have to be adjusted while in orbit.

Posted in: INSIDER, Joining & Assembly, Mechanical Components, Motion Control, Motors & Drives, Positioning Equipment, Optical Components, Optics
Read More >>

Learning to Crawl: Origami Robot Moves Like an Earthworm

A new mechanical innovation unfolded this month at the University of Illinois at Urbana-Champaign as a team of engineers built a new kind of crawler robot. The wheel-less design takes inspiration from two unconventional sources: origami and the earthworm.

Posted in: News, Materials, Motion Control, Motors & Drives, Robotics
Read More >>

Harmonic Air Motor Offers Very High Efficiency

Currently available air motors have many advantages over electric motors. They are more compact, lighter-weight, instantly reversible without sparking, create no heat buildup, are undamaged by stalling or overloading, and supply extremely broad torque and speed range. Generally available commercial air motors, however, have only 5% to 20% of ideal efficiency.

Posted in: INSIDER, Motion Control, Motors & Drives
Read More >>

Robotic Gripper Cleans Up Space Debris

Currently there are about 500,000 pieces of human-made debris in space, orbiting our planet at speeds up to 17,500 miles per hour. This debris poses a threat to satellites, space vehicles, and astronauts aboard those vehicles. However, cleaning up the debris is problematic. For example, suction cups don’t work in a vacuum, and traditional sticky substances like tape are largely useless because the chemicals they rely on can’t withstand extreme temperature swings.

Posted in: INSIDER, Motion Control, Robotics
Read More >>

Wireless Magnetic Field Powers Folding Robots

A team of researchers at the Wyss Institute for Biologically Inspired Engineering and the John A. Paulson School of Engineering and Applied Sciences (SEAS) at Harvard University has created battery-free folding robots that are capable of complex, repeatable movements powered and controlled through a wireless magnetic field. The system requires only basic, passive electronic components on the robot to deliver an electric current, and the structure of the robot itself takes care of the rest.

Posted in: INSIDER, Motion Control, Robotics
Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.