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Rugged high-accuracy hexapod for industrial 6-axis alignment applications

The H-815 6-Axis Hexapod from PI is a low-profile, ruggedized, highly accurate positioning and alignment system designed for continuous 24/7 operation in demanding industrial motion applications such as camera lens alignment (automotive, cell phones etc.), micro-assembly, aerospace test and assembly, micro-LED production, fiber optic alignment, aerospace test and assembly, and more. It provides 6-DOF -- X, Y, Z, pitch, roll, and yaw -- to deliver exceptional flexibility. Load capacity is 22 lb.
Learn more and get all the specs.

Long-life electric actuators: Improved controllability, performance

Thomson Electrak LL Linear Actuators now offer your machine designs a higher speed option, more electronic control options (including CANopen), and a 48-V option to meet the power requirements in battery-powered applications. Thomson says the new Electrak LL choices are for those who want to gain more control over the position, load, and speed of their applications, such as smart railway pantographs and couplers, AGVs, automated farming robots, movable steps, and access lifts for trains and buses.
Learn more and get the specs.

New high-payload vacuum gripper automatically adjusts to box size

The powerful and robust new VGP30 vacuum gripper from OnRobot is capable of handling up to 30 kg (66 lb) and is designed to excel at palletizing boxes and handling irregular shapes and porous surfaces -- even those constructed from cost-saving, thinner cardboard. It automatically adjusts to any box size or interlayer, optimizing air consumption and reducing energy costs. This unit is ready for immediate deployment out of the box and includes all the hardware and software needed for all leading robot brands. Lots more features.
Learn more.

Go inside the revolutionary GAM GPL Robotic Flange Gearbox

GAM's new GPL Series Robotic Planetary Gearbox combines the lowest backlash (<0.1 arcmin) and high tilting rigidity with vibration-free motion for smooth, controlled path motion in robotics and motion control applications. Its patented design guarantees backlash will not increase over the lifetime of the gearbox, so no future adjustments required! Many more benefits.
View the video.

Revamped Step By Step tool to configure Galil motion controllers

Galil introduces its revamped Step By Step tool for Galil Design Kit. Now with enhanced functionality and a new user interface, this tool allows first-time users to configure Galil motion controllers. Along with the existing ability to configure brushed and brushless servos, users are now able to configure steppers, set up serial-type and sine-cosine encoders, and tune axes -- all within the new Step By Step tool.
Learn more and check it out.

Stepper drives detect stalls in open-loop control mode

Automation-Direct has added the new Titanio series of stepper drives from Ever Motion Solutions. These drives offer peak performance, a rich feature set, and work seamlessly with AutomationDirect SureStep^® stepper motors. Three new drives are available with two open-loop (no encoder feedback) models and one open/closed-loop version (a motor-mounted encoder provides position feedback to the drive). Unlike typical stepper drives, Titanio steppers can detect stalls in open-loop control mode by monitoring the motor's back EMF. This allows system designers to take advantage of stall detection without the hassle and expense of a closed-loop system.
Learn more.

New high-thrust linear motor stage

IKO's LT170H2 direct drive linear motor stage delivers 260N of rated force and up to 500N maximum, exceeding the thrust ratings of previous LT stages and expanding the linear stage series' range of suitable applications -- especially those that involve positioning heavy objects in tight spaces. Its redesigned linear motor leverages direct drive technology that is free of mechanical power transmission parts that can otherwise hinder positioning accuracy. It includes C-Lube linear bearings for guidance. Together, they allow the stage to achieve higher thrust forces and high speeds with exceptional precision.
Learn more.

What is a low-waving linear motion guide?

If you are having a problem with your linear guides not always staying perfectly straight during use, it may be due to a phenomenon called waving -- a problem that is particularly critical in high-precision markets such as semiconductor and LCD equipment-related applications or machine tools. Thankfully, THK has an answer.
Read the full article.

Advanced motion controller for BLDC motors

The PCR 56/06 EC SD from Portescap is an integrated hardware and software package for single-axis control of brushless DC motors. It features a user-friendly Windows-based software suite with autotuning capabilities to reduce setup times. With a power supply of up to 56V and a continuous current capability of 5.5A, along with Hall sensor and encoder feedback options, the PCR 56/06 EC SD meets various application requirements with ease. A standout feature is the module-only option, which allows the controller to be mounted directly onto the application's PCB to facilitate a smooth transition from prototyping to series production. Ideal for the Aerospace, Automation, Industrial Power Tools, Medical, and Robotics markets.
Learn more.

3-axis motion made simple using CLICK PLUS PLC

Automation-Direct CLICK PLUS PLCs, when combined with stepper motors, make advanced motion control and edge integration simple for smaller systems. Learn motion control basics, motor options, motion with micro-PLCs and steppers, and more in this informative whitepaper from AutomationDirect. No registration required.
Get the AutomationDirect whitepaper.

Ultra-lightweight humanoid robotics arms are ultra affordable too

RealMan's ultra-lightweight robotic arms offer unmatched agility, strength, and precision at a surprising price. Designed with cutting-edge materials and advanced motion control, these arms enable lifelike movements, making them ideal for manufacturing, service industries, and even domestic assistance. Among these, GEN72 is a consumer-grade robotic arm with a load capacity of 2 kg priced at just over $1,000. It is suitable for large-scale applications such as personal research and development, and commercial service scenarios. Lots of other options.
Discover what RealMan Robotics has to offer.

Advanced 4-axis delta robot for high-speed pick and place

igus has launched its latest high-performance 4-axis delta robot, the DR1000. Designed specifically for fast and precise pick-and-place tasks, this new unit sets a benchmark for cost-effective and efficient automation solutions. The DR1000 boasts an impressive working diameter of 1,000 mm and an additional rotary axis that provides four degrees of freedom, enabling users to grip and orient components seamlessly. An ideal choice for end-of-line applications. Fast at 96 picks/min.
Learn more.

How to maximize and optimize stepper motor control

Engineers from Performance Motion Devices take a comprehensive look at how to control two-phase stepper motors, beginning with the basics (operations, strengths, and weaknesses) and moving on to traditional and updated advanced techniques for control including closed loop. A very thorough presentation.
Read this Performance Motion Devices article.

Nanotec expands stepper motor line

Nanotec has added the ASA86 to its family of high-performance stepper motors designed to meet the demands of advanced automation applications. All ASA series motors are UL/CSA-certified and offer IP65-rated protection for reliable operation in harsh environments. For precise positioning, they feature a built-in encoder in incremental or multiturn versions. With a holding torque of up to 933 Ncm, the ASA86 is optimized for dynamic, high-load applications. Comes in two lengths and can be combined with various gearboxes.
Learn more.

Electromate offers advanced UAV and drone subsystems in partnership with maxon

Electromate has just announced the availability of advanced UAV and drone subsystems through its partnership with maxon, a renowned Swiss manufacturer of precision drive systems. These durable parts are engineered to meet the specific demands of unmanned aerial vehicles (UAVs). maxon's UAV propulsion systems consist of brushless DC motors, electronic speed controllers, and propellers built for the utmost safety and efficiency.
Learn more.

NASA turns off two Voyager science instruments to extend mission -- one stepper motor completed more than 8.5 million steps!

An artist's concept depicts one of NASA's Voyager probes. The twin spacecraft launched in 1977. [Credit: NASA/JPL-Caltech]

 

 

The farthest-flung human-made objects will be able to take their science-gathering even farther, thanks to these energy-conserving measures.

By NASA's Jet Propulsion Laboratory

Mission engineers at NASA's Jet Propulsion Laboratory (JPL) in Southern California turned off the cosmic ray subsystem experiment aboard Voyager 1 on Feb. 25 and will shut off Voyager 2's low-energy charged particle instrument on March 24. Three science instruments will continue to operate on each spacecraft. The moves are part of an ongoing effort to manage the gradually diminishing power supply of the twin probes.

Launched in 1977, Voyagers 1 and 2 rely on a radioisotope power system that generates electricity from the heat of decaying plutonium. Both lose about 4 W of power each year.

"The Voyagers have been deep space rock stars since launch, and we want to keep it that way as long as possible," said Suzanne Dodd, Voyager project manager at JPL. "But electrical power is running low. If we don't turn off an instrument on each Voyager now, they would probably have only a few more months of power before we would need to declare end of mission."

The two spacecraft carry identical sets of 10 science instruments. Some of the instruments, geared toward collecting data during planetary flybys, were turned off after both spacecraft completed their exploration of the solar system's gas giants.

The instruments that remained powered on well beyond the last planetary flyby were those the science team considered important for studying the solar system's heliosphere, a protective bubble of solar wind and magnetic fields created by the Sun, and interstellar space, the region outside the heliosphere. Voyager 1 reached the edge of the heliosphere and the beginning of interstellar space in 2012; Voyager 2 reached the boundary in 2018. No other human-made spacecraft has operated in interstellar space.

Last October, to conserve energy, the project turned off Voyager 2's plasma science instrument, which measures the amount of plasma -- electrically charged atoms -- and the direction it is flowing. The instrument had collected only limited data in recent years due to its orientation relative to the direction that plasma flows in interstellar space. Voyager 1's plasma science instrument had been turned off years ago because of degraded performance.

Interstellar science legacy
The cosmic ray subsystem that was shut down on Voyager 1 at the end of February is a suite of three telescopes designed to study cosmic rays, including protons from the galaxy and the Sun, by measuring their energy and flux. Data from those telescopes helped the Voyager science team determine when and where Voyager 1 exited the heliosphere.

Scheduled for deactivation later this month, Voyager 2's low-energy charged particle instrument measures the various ions, electrons, and cosmic rays originating from our solar system and galaxy. The instrument consists of two subsystems: the low-energy particle telescope for broader energy measurements, and the low-energy magnetospheric particle analyzer for more focused magnetospheric studies.

Both systems use a rotating platform so the field of view is 360 degrees, and the platform is powered by a stepper motor that provides a 15.7-W pulse every 192 seconds. The motor was tested to 500,000 steps -- enough to guarantee continuous operation through the mission's encounters with Saturn, which occurred in August 1980 for Voyager 2. By the time it is deactivated on Voyager 2, the motor will have completed more than 8.5 million steps.

"The Voyager spacecraft have far surpassed their original mission to study the outer planets," said Patrick Koehn, Voyager program scientist at NASA Headquarters in Washington. "Every bit of additional data we have gathered since then is not only valuable bonus science for heliophysics, but also a testament to the exemplary engineering that has gone into the Voyagers -- starting nearly 50 years ago and continuing to this day."

Addition through subtraction
Mission engineers have taken steps to avoid turning off science instruments for as long as possible, because the science data collected by the twin Voyager probes is unique. With these two instruments turned off, the Voyagers should have enough power to operate for about a year before the team needs to shut off another instrument on both spacecraft.

In the meantime, Voyager 1 will continue to operate its magnetometer and plasma wave subsystem. The spacecraft's low-energy charged particle instrument will operate through the remainder of 2025 but will be shut off next year.

Voyager 2 will continue to operate its magnetic field and plasma wave instruments for the foreseeable future. Its cosmic ray subsystem is scheduled to be shut off in 2026.

With the implementation of this power conservation plan, engineers believe the two probes could have enough electricity to continue operating with at least one science instrument into the 2030s. However, they are also mindful that the Voyagers have been weathering deep space for 47 years and that unforeseen challenges could shorten that timeline.

Long distance
Voyager 1 and Voyager 2 remain the most distant human-made objects ever built. Voyager 1 is more than 15 billion miles (25 billion km) away. Voyager 2 is over 13 billion miles (21 billion km) from Earth.

In fact, due to this distance, it takes over 23 hours to get a radio signal from Earth to Voyager 1, and 19 1/2 hours to Voyager 2.

"Every minute of every day, the Voyagers explore a region where no spacecraft has gone before," said Linda Spilker, Voyager project scientist at JPL. "That also means every day could be our last. But that day could also bring another interstellar revelation. So, we're pulling out all the stops, doing what we can to make sure Voyagers 1 and 2 continue their trailblazing for the maximum time possible."

For more information about NASA's Voyager missions, visit science.nasa.gov/mission/voyager.

Published March 2025

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