Special Coverage

Technique Provides Security for Multi-Robot Systems
Bringing New Vision to Laser Material Processing Systems
NASA Tests Lasers’ Ability to Transmit Data from Space
Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing

Coming Soon - Warming Up to Cold Forming: An Alternative to Precision Machining?

Designing and manufacturing complex, precision parts can be difficult and costly. Often, Engineers default to traditional machining when designing precision metal parts, but are there other methods that are better suited? Find out if cold forming is the right manufacturing capability for your next project in this 30-minute high-level introduction.

Posted in: Upcoming Webinars, Mechanical Components

3D Printed Tensegrity Object Can Change Shape

Researchers at Georgia Tech 3D printed an object made with tensegrity, a structural system of floating rods in compression and cables in continuous tension. (Credit: Rob Felt)

A team of researchers from the Georgia Institute of Technology has developed a way to use 3D printers to create objects capable of shape change. The objects use tensegrity, a structural system of floating rods in compression and cables in continuous tension. The researchers fabricated the struts from shape memory polymers that unfold when heated. The technology could someday be used in applications ranging from space missions to biomedical devices.

Posted in: News, Manufacturing & Prototyping, Mechanical Components, Motion Control

Low-Pressure Plasma Cleaning of Aerospace Components Using Breathing/Compressed Air

A method for precision cleaning of aerospace components is needed that does not use hazardous or environmentally harmful commodities. Historically, precision cleaning methods have utilized solvents that have contributed to the depletion of the ozone layer or had high potential for contributing to global warming. Solvent cleaning produces large waste streams, and some solvents may be phased out in the future due to the environmental concerns.

Posted in: Briefs, Mechanical Components

Chain Drive Dust Conveyer

This method clears cutting fines from a sampling tool without the use of fluids.

The Mars 2020 coring drill will generate a significant amount of dust and debris (known as fines) due to the volume of milled material displaced by the corer's annulus. These cuttings must be removed to ensure that the drill does not jam. The typical method involves fluids, which may not work on Mars due to the atmospheric conditions.

Posted in: Briefs, Mechanical Components

BiBlade Sampling Chain

This tool enables multiple sampling attempts per sample.

The BiBlade sampler has been developed for potentially acquiring samples from the surface of a planetary body. The tool could conceivably be used in both in situ and notional sample return missions to planetary bodies including asteroids, comets, and moons. While the tool was designed for planetary sampling missions, it could have terrestrial applications as well.

Posted in: Briefs, Mechanical Components

Micro Acoustic Resonant Chambers for Heating/Agitating/Mixing (MARCHAM)

This device can be used for extracting amino acids in microfluidic or benchtop designs, and could be scaled up to accommodate large samples for mixing and extraction.

To measure organics in a fluid sample, one either has to bring the sample in the form of a colloid to the instrument, or extract the organics from the sample and bring the liquid extract to the instrument. The disclosed technique enables both extraction and transport of the fines or the organics.

Posted in: Briefs, Mechanical Components

Advanced Tool Drive System (ATDS) Camera Positioning Mechanism (CPM)

Robotic servicing of a satellite in low earth orbit (LEO) or geosynchronous Earth orbit (GEO) requires advanced systems capable of meeting the harsh environments of space. To support this effort, the Goddard Space Flight Center Satellite Servicing Capabilities Office (SSCO) has developed a camera positioning mechanism that will be capable of viewing features on a client satellite. Application of the CPM technology would be in multiple areas of spaceflight requiring robotic servicing including space exploration, planetary science, Earth science, and manned spaceflight.

Posted in: Briefs, Mechanical Components, Motion Control, Motors & Drives, Positioning Equipment

Compact, Lightweight Trap Vent

This compact, lightweight trap vent is used to minimize the pressure differential of a high-altitude, balloon-borne detector. The vent allows the pressure to equalize rapidly, yet does not allow any light to enter the detector.

Posted in: Briefs, Mechanical Components

MEMS Move Wearables Beyond Touch Interfaces

We use touch, the dominant user interface for years, to tap keyboards on laptops and tablets, to communicate with our car’s portable GPS, and to text friends and take photos from our smartphones.

Posted in: Articles, MEMs, Sensors

Mechanical Actuators Bend as They “Breathe”

The equipment used for testing the new materials. (Credit: MIT)

Extreme temperatures can severely strain a mechanical component because its material may have trouble enduring the heat without degrading. To address the problem, researchers at MIT developed a new material that expands and contracts as it lets oxygen in and out. The result is a new way to make actuators that could be used in extremely hot environments.

Posted in: News, Materials, Mechanical Components, Motion Control

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