Canada2 holding and astronaut performing planned maintenance of the stations

Canadarm2 catches and docking supply module

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Canadarm2: Canadian Robot Arm for the Space with Replacable Parts

Creator: MDA Space

Country: Canada

Year: 2001

– Summary
– Whimsical Intro
– Videos
– Learn More
– Brief History
– Top 5+ Qualities
– Technical Specs
– Comment by addoobot
– References
– Rating & Comments

Summary

The Canadarm2, developed by MDA, is an advanced robotic arm enabling assembly, maintenance, and innovation on the ISS.

Status: Completed

Operation: Semi-autonomous, Teleoperation, Collaborative

Robot Type / Domain: Multi/General-Purpose, Other Infrastructure

Tasks: Space Station Construction, Astronauts Support, Docking Help

Whimsical Intro (by addoobot)

Imagine a giant robotic arm gracefully inching its way across the vast expanse of the International Space Station, like a mechanical caterpillar with a flair for precision. Among the stars, where tools must be as extraordinary as the missions they serve, Canadarm2 stands out as nothing short of extraordinary. Dive in to learn more below!

Learn More

Mission: Precision in Space Operations

The Canadarm2 is Canada's contribution to the International Space Station (ISS). It is a larger and more advanced version of the Space Shuttle's original Canadarm, designed to assist in assembling and maintaining the station, handling cargo and even supporting astronauts during spacewalks. Launched in 2001, it has played a crucial role in the construction and daily operations of the ISS due to its versatility and precision. Canadarm2 was designed with advanced control systems to perform delicate operations in microgravity.

High-Tech Features of Canadarm2

Equipped with advanced cameras and sensors, Canadarm2 offers precise real-time feedback for operators. The system is fitted with force-torque sensors, enabling the arm to apply just the right amount of pressure when handling sensitive equipment or docking spacecraft. Canadarm2 is also self-relocatable, able to move end-over-end in an inchworm-like fashion to access various areas of the ISS, with movement constrained by the number of Power Data Grapple Fixtures (PDGFs) available on the station. These PDGFs supply power, data, and video to the arm via either of its two Latching End Effectors (LEEs). Additionally, the arm can traverse the full length of the ISS truss using the Mobile Base System.

Canadarm2 is also capable of capturing uncrewed spacecraft such as the SpaceX Dragon, Cygnus and Japanese H-II Transfer Vehicle (HTV). These spacecraft are equipped with a standard grapple fixture, which the Canadarm2 uses to capture and dock them with the ISS. After their mission is complete, the arm is also used to undock and release the spacecraft.

A Robotic Wonder at the 400000m Orbit

One of the most innovative features of Canadarm2 is its ability to be operated remotely, providing a combination of autonomy and human control. In recent years, most robotic operations have been remotely controlled by flight controllers at the Christopher C. Kraft Jr. Mission Control Center or from the Canadian Space Agency's John H. Chapman Space Centre. This remote operation allows greater flexibility, as controllers can work in shifts to complete tasks, though at a slower pace compared to onboard crew operators. Astronauts are still involved in time-critical operations, such as capturing visiting vehicles and supporting robotics-assisted spacewalks. Nowadays, Canadarm2 continues to be an essential tool in the success of the International Space Station.

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Brief History

The development of Canadarm2 began in the late 1990s as part of the Canadarm (first version) modification program. The arm was designed and built by Spar Aerospace in collaboration with the Canadian Space Agency (CSA). Canadarm2 was launched aboard the Space Shuttle Endeavour on April 19, 2001, and was successfully installed on the ISS during the mission STS-100. Over the years, Canadarm2 has been integral to the assembly and maintenance of the ISS, performing critical tasks such as capturing cargo spacecraft and assisting astronauts during spacewalks. By 2024, the arm continues to play a vital role in the ongoing operations of the ISS.

Top 5+ Qualities (by addoobot)

What we find to be the top qualities of the Canadarm2:

Precision and Dexterity: With seven motorized joints, Canadarm2 offers exceptional flexibility and accuracy for complex tasks, such as capturing cargo and assisting astronauts during spacewalks.
Heavy Payload Handling: With incredible capability of lifting up to 116,000 kg (256,000 lbs), the arm can handle large, heavy payloads essential for ISS assembly and maintenance.
Self-Relocation Ability: Canadarm2 can move end-over-end, using its inchworm-like motion to reach various parts of the ISS, providing exceptional mobility and flexibility.
Remote Operation: Controlled remotely from Earth or from onboard ISS stations, Canadarm2 allows flight controllers and astronauts to execute operations with flexibility and precision.
Versatility in Space Operations: Beyond cargo handling, Canadarm2 is integral to critical tasks such as spacecraft docking, unberthing, and supporting extra-vehicular activities, making it essential to the ISS’s functionality.

Technical Specifications

Max. Reach: 17600 mm

Max. Reach: 692.913 in

Payload: 116000 kg

Payload: 255736.224 lbs

Max. Payload: N/A

Pose Repeatability: ± 2.5 mm

Pose Repeatability: ± 0.098 in

Weight: 1800 kg

Weight: 3968.321 lbs

Battery Operated? No, Tethered

Arm Type: Articulated

Number of Axes: 7 DoF

IP Rating: N/A

Mounting: Any desired angle, Other

Footprint: N/A

Operating Temperature: -150 ℃ to 150 ℃

Operating Temperature: -238.000 ℉ to 302.000 ℉

Open-source? No

Price: $200000 USD

Show more specs

Attachable module: SPDM (smaller robot arm)

Software: MSS, ROCS, Ada 95 programming language

Remote Control / Interface: 1 x rotation hand controller, 1 x translation hand controller, 1 x manual control panel

Material: mostly alluminium for structure, titanium, compostie materials.

Actuators: 7 x brushless DC motors in every joint,

No more specs to show.

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Comment by addoobot - Our Perspective

What truly stands out about Canadarm2 is its remarkable combination of advanced robotics and multi-functionality. From playing a significant role in assembling the ISS to capturing uncrewed spacecraft like the SpaceX Dragon, it has become an essential tool for maintaining the station. Its ability to be remotely operated and move across the ISS with precision is a game-changer for space missions. It's fascinating to think about how this piece of technology has revolutionized the way we operate in space! What do you think makes Canadarm2 so special? Feel free to share your thoughts below!

addoorable score:

8.90/10

Canadarm2 is not only innovative and essential for the International Space Station, but its aesthetic appeal as a sleek, robotic arm that moves around like a long caterpillar is truly eye-catching.

References

Official website for Canadarm2

Learn more about Canadarm2

Learn about the history of Canadarm2

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